JMeter developers

# History of Previous Changes

# History of Previous Changes

This page details the changes made in previous versions only.
Current changes are detailed in Changes.

Changes sections are chronologically ordered from top (most recent) to bottom (least recent)

# Version 5.1.1

Summary

- New and Noteworthy
- Incompatible changes
- Bug fixes
- Improvements
- Non-functional changes
- Known problems and workarounds
- Thanks

New and Noteworthy

This release is mainly a bugfix release. Please see the Changes history page to view the last major behaviors with the version 5.1.

Live Reporting and Web Report

A new menu entry has been added to the Tools menu. It's allow to generate a results report from a previous CSV/JTL file.

Incompatible changes

Improvements

### HTTP Samplers and Test Script Recorder

- 62977
  Allow sending HTTP requests without a default User-Agent header

### Other samplers

- 63185
  LDAP related elements: Add option to implicitly trust SSL/TLS connections/Disable hostname verification. Based on contribution by Brian Wolfe (wolfebrian2120 at gmail.com)

### Controllers

### Listeners

### Timers, Assertions, Config, Pre- & Post-Processors

- 63178
  CSS Selector Extractor: Improve performance of JODD (JoddExtractor) based implementation

### Functions

### I18N

### Report / Dashboard

- 59896
  Report / Dashboard: Add a menu entry to generate a report on demand from a CSV file. Contributed by Ubik Load Pack (support at ubikloadpack.com)

### General

- 444
  Update to latest Spock v1.2 (was 1.0). Contributed by Graham Russell (graham at ham1.co.uk)
- 446
  Improve Unit tests readability and use of Spock. Contributed by Graham Russell (graham at ham1.co.uk)

Non-functional changes

- 63203
  Unit Tests: Replace use of `@Deprecated` by `@VisibleForTesting` for methods/constructors/classes made public for Unit Testing only
- 449
  Refactor and Test ResponseTimePercentilesOverTimeGraphConsumer. Contributed by Graham Russell (graham at ham1.co.uk)
- 450
  Abstract graph consumer improvements. Contributed by Graham Russell (graham at ham1.co.uk)
- 451
  Improve a few unit tests and classes. Contributed by Graham Russell (graham at ham1.co.uk)

Bug fixes

### HTTP Samplers and Test Script Recorder

### Other Samplers

- 63202
  JMS Publisher: ObjectMessageRenderer creates XStream instance with uninitialized security

### Controllers

### Listeners

- 63204
  `RenderAsJSON#prettyJSON`: `JSONParser#parse` cannot return JSONValue

### Timers, Assertions, Config, Pre- & Post-Processors

- 62446
  Counter documentation is wrong in required fieds. Contributed by orimarko at gmail.com
- 62327
  TestPlan: In library table if path is modified and plan saved, the modification is lost on file reload

### Functions

- 63241
  `__threadGroupName` causes a NullPointerException if called from non Test threads

### I18N

### Report / Dashboard

- 63198
  Response Time Vs Request and Latency Vs Request graphs don't line up with throughput. Contributed by Ubik Load Pack (support at ubikloadpack.com)

### Documentation

### General

- 63201
  SearchTreeDialog disappears behind master JFrame. Contributed by Benoit Vatan (benoit.vatan at gmail.com)
- 63220
  `Function Helper Dialog`, `Export transactions for report` and `Import from cURL` disappear being master JFrame. Contributed by Ubik Load Pack (support at ubikloadpack.com)
- 63207
  java.lang.NullPointerException: null when run JMeter 5.1 with proxy options
- 58183
  Rampup may not be respected if thread take time to start leading to threads continuing to start post ramp up time

Thanks

We thank all contributors mentioned in bug and improvement sections above:

- Ubik Load Pack
- Benoit Vatan (benoit.vatan at gmail.com)
- Graham Russell (graham at ham1.co.uk)
- Brian Wolfe (wolfebrian2120 at gmail.com)
- orimarko at gmail.com

We also thank bug reporters who helped us improve JMeter.

Apologies if we have omitted anyone else.

Known problems and workarounds

- The Once Only controller behaves correctly under a Thread Group or Loop Controller, but otherwise its behaviour is not consistent (or clearly specified).
- The numbers that appear to the left of the green box are the number of active threads / total number of threads, the total number of threads only applies to a locally run test, otherwise it will show `0` (see 55510).
- Note that under some windows systems you may have this WARNING:

      java.util.prefs.WindowsPreferences
      WARNING: Could not open/create prefs root node Software\JavaSoft\Prefs at root 0
      x80000002. Windows RegCreateKeyEx(&hellip;) returned error code 5.

  The fix is to run JMeter as Administrator, it will create the registry key for you, then you can restart JMeter as a normal user and you won't have the warning anymore.
- You may encounter the following error:

      java.security.cert.CertificateException: Certificates does not conform to algorithm constraints

  if you run a HTTPS request on a web site with a SSL certificate (itself or one of SSL certificates in its chain of trust) with a signature algorithm using MD2 (like `md2WithRSAEncryption`) or with a SSL certificate with a size lower than 1024 bits. This error is related to increased security in Java 8+.
  To allow you to perform your HTTPS request, you can downgrade the security of your Java installation by editing the Java `jdk.certpath.disabledAlgorithms` property. Remove the MD2 value or the constraint on size, depending on your case.
  This property is in this file:

      JAVA_HOME/jre/lib/security/java.security

  See 56357 for details.
- Under Mac OSX Aggregate Graph will show wrong values due to mirroring effect on numbers. This is due to a known Java bug, see Bug JDK-8065373 The fix is to use JDK8_u45 or later.
- View Results Tree may fail to display some HTML code under HTML renderer, see 54586. This is due to a known Java bug which fails to parse "`px`" units in row/col attributes. See Bug JDK-8031109 The fix is to use JDK9 b65 or later.
- JTable selection with keyboard (SHIFTup/down) is totally unusable with Java 7 on Mac OSX. This is due to a known Java bug JDK-8025126 The fix is to use JDK 8 b132 or later.

# Version 5.1

Summary

- New and Noteworthy
- Incompatible changes
- Bug fixes
- Improvements
- Non-functional changes
- Known problems and workarounds
- Thanks

New and Noteworthy
Core improvements

JDBC testing has been improved with ability to set init SQL statements and add compatibility with JDBC drivers that do not support QueryTimeout

- Various bug fixes have been implemented, like gathering the correct headers when recording requests through the HTTP(S) Test Script Recorder using HTTPS
- In version 5.0, JMeter was changed to rename Sub results using a custom Naming Policy (62550). This change could be annoying for Functional Testing, a new property `subresults.disable_renaming=true` has been introduced to revert if needed to previous behaviour. An alternative is to check `Functional Test Mode` in Test Plan, see 63055

UX improvements

Templates can provide parameters that are filled in on test plan generation, `Recording` template uses this feature

A new `Tools` menu has been introduced to collect those entries, that are used for general usage around JMeter, like:

- `Function Helper Dialog`
- `Export transactions for report`
- `Generate Schematic View` which provides an overview as HTML of the Test plan
- `Import from cURL` which allows you to create or update your test plan by importing a cURL command
- `Compile JSR223 Test Elements`
- `Create a heap dump`
- `Create a thread dump`

Test Plan

Ability to create a Test plan from a cURL command.

Scripting / Debugging enhancements

- A menu item to compile all JSR223 Elements is now available in `Tools` menu

Live Reporting and Web Report

- A JSON file containing summary of a load test statistics is now generated when using `-e` or `-g` options.
- Percentiles computing graphed over time algorithm has been modified to restart for each time slot
- More user-friendly behaviour when reporting folder does not exist or is not empty through `-f` command line option

Incompatible changes

- In `Response Time Percentiles Over Time (successful responses)` graph of the HTML report, before this version, percentile computation of each time slot used the percentile data of previous time slot as a base. Starting with this version, each time slot is independant. See 62883
- `ClientJMeterEngine#rsetProperties` signature has been changed to use `HashMap<String,String>` instead of Properties, see 63034
- A new Menu item `Tools` has been introduced, some menu items that were in `Help` menu are now under this new menu item. See 63094
- `slf4j-ext` has been removed from libraries (lib folder) and JMeter pom. It was not used by default and due to CVE-2018-8088 and unavailability of a stable version containing a fix to this issue, we decided to remove it. If you still needed, you can add it in lib folder.

Improvements

### HTTP Samplers and Test Script Recorder

- 62840
  HTTP Request: Add option `httpclient4.gzip_relax_mode` to avoid error when unzipping what seems to be invalid streams
- 63025
  Enhance Search & Replace functionality for HTTP Request to include port and protocol field. Initial code fix by Mohamed Ibrahim (rollno748 at gmail.com)

### Other samplers

- 62934
  Add compatibility for JDBC drivers that do not support QueryTimeout
- 62935
  Pass custom `mail.*` properties to Mail Reader Sampler. Implemented by Artem Fedorov (artem.fedorov at blazemeter.com) and contributed by BlazeMeter.
- 63055
  Don't rename SampleResult Label when test is running in Functional mode or property `subresults.disable_renaming=true`. Implemented by Artem Fedorov (artem.fedorov at blazemeter.com) and contributed by BlazeMeter.

### Controllers

### Listeners

- 62822
  407
  Render uninitialized min and max values in Summary Report as `#N/A`

### Timers, Assertions, Config, Pre- & Post-Processors

- 62766
  Keystore Config: We should load all aliases by default. Contributed by Ubik Load Pack (support at ubikloadpack.com)
- 62832
  JDBC Connection Configuration: Be able to set init SQL statements. Contributed by Ubik Load Pack (support at ubikloadpack.com)

### Functions

- 63037
  When using `CSVRead` search the script base path for files, too.

### I18N

### Report / Dashboard

- 62883
  Report / Dashboard: Change the way percentiles are computed for Response Time Percentiles Over Time (successful responses) graph
- 63060
  Report Generator: A generator should only check for folder/files it generates and only delete those ones
- 63059
  Create a new JsonExporter that exports as JSON the content of data computed for HTML Dashboard Statistics table. Contributed by Ubik Load Pack (support at ubikloadpack.com)
- 63081
  Command line Option `-f` does not delete report folder when using generation only through command line option `-g`. Contributed by Ubik Load Pack (support at ubikloadpack.com)

### General

- 62959
  Ability to create a Test plan from a cURL command. Contributed by Ubik Load Pack (support at ubikloadpack.com)
- 394
  Allow `null` values in `FieldStringEditor`. Based on patch by Mingun (alexander_sergey at mail.ru)
- 62826
  When changing LAF, make JMeter restart if user clicks yes to popup
- 62257
  401
  Expand/Collapse short key - (minus sign) on numpad doesn't work. Contributed by Ori Marko (orimarko at gmail.com)
- 62752
  Add to Documentation: `ctx.getThreadNum()` is zero-based while `${__threadNum}` is one-based
- 411
  Use `SHA-1` instead of `SHA1` in `org.apache.jmeter.save.SaveService`. Contributed by Paco (paco.xu at daocloud.io)
- 62914
  Add a hint in Thread Group UI about duration of test
- 62925
  Add support for ThreadDump to the JMeter non-GUI
- 62870
  Templates: Add ability to provide parameters. Contributed by Ubik Load Pack (support at ubikloadpack.com)
- 62829
  Allow specifying Proxy server scheme for HTTP request sampler, Advanced tab and command line option. Contributed by Hitesh Patel (hitesh.h.patel at gmail.com)
- 59633
  Menus `Save Test Plan as`, `Save as Test Fragment` and `Save Selection as ...` should use a new file name in File Dialog
- 61486
  Make jmeter-server and non GUI mode run headless
- 63093
  Add `Compile JSR223 Test Elements` menu item. Contributed by Ubik Load Pack (support at ubikloadpack.com)
- 63094
  Introduce a new Tools menu
- 63101
  Propose a menu item to generate readable overview of Test Plan
- 63144
  View listener tree take a long time to open response that has huge text. Contributed by Ubik Load Pack (support at ubikloadpack.com)

Non-functional changes

- 408
  Log an informational message instead of an stack trace, when JavaFX is not found for the `RenderInBrowser` component.
- 412
  Update Chinese translation. Contributed by 刘士 (liushilive at outlook.com).
- 406
  Add a short paragraph on how to use a security manager with JMeter.
- 62893
  Use StringEscapeUtils from commons-text (version 1.6) instead of the deprecated ones from commons-lang3.
- 62972
  435
  Replace calls to deprecated method `Class#newInstance`.
- 63034
  ClientJMeterEngine: Make rsetProperties use `HashMap<String,String>` instead of Properties
- Updated to httpclient/httpmime 4.5.7 (from 4.5.6)
- Updated to httpcore 4.4.11 (from 4.4.10)
- Updated to httpcore-nio 4.4.11 (from 4.4.10)
- Updated to tika-core and tika-parsers 1.20 (from 1.18)
- Updated to commons-dbcp2-2.5.0 (from commons-dbcp2-2.4.0)
- Updated to commons-lang3-3.8.1 (from commons-lang3-3.8)
- Updated to groovy-all-2.4.16 (from groovy-all-2.4.15)
- Updated to httpasyncclient-4.1.4.jar (from 4.1.3)
- Updated to jsoup-1.11.3 (from 1.11.2)
- Updated to cglib-nodep-3.2.9 (from cglib-nodep-3.2.7)
- Updated to ph-commons-9.2.1 (from ph-commons-9.1.2)
- Updated to log4j-2.11.1 (from log4j-2.11.0)
- Updated to xmlgraphics-commons 2.3 (from 2.2)
- 63033
  Updated to Saxon-HE 9.9.1-1 (from 9.8.0-12). Thanks at Saxonica
- Updated to xstream 1.4.11 (from 1.4.10)
- Updated to jodd 5.0.6 (from 4.1.4)
- Updated to asm-7.0 (from 6.1)
- Update to ActiveMQ 5.15.8 (from 5.5.16)
- Updated to rsyntaxtextarea-3.0.2 (from 2.6.1)
- Updated to apache-rat-0.13 (from 0.12)
- Updated to jacocoant-0.8.3 (from 0.8.2)
- Updated to hsqldb-2.4.1 (from 2.4.0)
- Updated to mina-core-2.0.19 (from 2.0.16)
- 62818
  Updated to xercesImpl to 2.12.0 (from 2.11.0). Reported by Stefan Seide (stefan at trilobyte-se.de)
- 62744
  Upgrade jquery to version 3.3.1, jquery-ui to 1.12.1, bootstrap to 3.3.7
- 62821
  405
  Use SHA-512 checksums instead of MD5 to verify jar downloads
- 63053
  Remove referrals to never implemented internals from user documentation. Reported by U. Poblotzki (u.poblotzki at thalia.de)
- 63082
  437
  Use utf-8 for properties files in source
- 63177
  Rename NON GUI mode into CLI Mode in documentation

Bug fixes

### HTTP Samplers and Test Script Recorder

- 62785
  400
  Incomplete search path applied to the filenames used in the upload functionality of the HTTP sampler. Implemented by Artem Fedorov (artem.fedorov at blazemeter.com) and contributed by BlazeMeter.
- 62842
  HTTP(S) Test Script Recorder: Brotli compression is not supported leading to "`Content Encoding Error`"
- 60424
  Hessian Burlap application: JMeter inserts `0x0D` before `0x0A` automatically (http binary post data)
- 62940
  Use different `cn` and type of SAN extension when we are generating certificates based on IP addresses.
- 62916
  HTTP Test Script Recorder fails with UnsupportedOperationException if recording is started after a distributed test has been run
- 62987
  A TestBean element under HTTP(S) Test Script recorder does not work. Contributed by Ubik Load Pack (support at ubikloadpack.com)
- 63015
  Abnormal NoHttpResponseException when running request through proxy HTTP(S) Test Script Recorder after a first failing request. Contributed by Ubik Load Pack (support at ubikloadpack.com)
- 62852
  HTTP Request Header missing information when using a proxy. Thanks to Oleg Kalnichevski (olegk at apache.org)
- 63048
  JMeter does not retrieve link resources of type "shortcut icon" or "icon". Contributed by Ubik Load Pack (support at ubikloadpack.com)

### Other Samplers

- 62775
  If many jars are in a folder referenced by `user.classpath`, startup can be extremely slow due to JUnit
- 63031
  Incorrect JDBC driver class: `org.firebirdsql.jdbc.FBDrivery`. Contributed by Sonali (arora.sonali99 at gmail.com)

### Controllers

- 62806
  ModuleController cloning by Run behaves differently wether in GUI or Non GUI mode. Contributed by Ubik Load Pack (support at ubikloadpack.com)
- 62847
  If Controller cannot use variable for index exposed by LoopController/WhileController/ForEachController
- 63064
  Ignore spaces at the end and beginning of expressions used in IfController

### Listeners

- 62770
  Aggregate Graph throws `ArrayIndexOutOfBoundsException`
- 63069
  ResultCollector does not write end of XML file if user exits while a Recording or a test is running. Contributed by Ubik Load Pack (support at ubikloadpack.com)
- 63138
  InfluxDB BackendListenerClient: In case of error, log is in debug, it should be in error

### Timers, Assertions, Config, Pre- & Post-Processors

- 62774
  XPath2Extractor: Scope variable is broken. Contributed by Ubik Load Pack (support at ubikloadpack.com)
- 62860
  JSON Extractor: Avoid NPE and noisy error message "`Error processing JSON content in`" when variable is not found

### Functions

### I18N

### Report / Dashboard

- 62777
  Web Report / Dashboard: Hide All in `Response Time Percentiles Over Time (successful responses)` fails.
- 62780
  Web Report / Dashboard: Display All in `Response Time Vs Request` fails.
- 62781
  Web Report / Dashboard: Display All in `Response Time Overview` fails.
- 62782
  Web Report / Dashboard: Remove duplicate/unused dependencies
- 62894
  Report / Dashboard: Throughput is in wrong column which is confusing as unit is millisecond
- 63016
  Empty HTML report if source csv contains labels with quotes. Contributed by Ubik Load Pack (support at ubikloadpack.com)

### Documentation

- Change `Test Action` (old name) to `Flow Control Action` in Component Reference documentation. Contributed by Ori Marko (orimarko at gmail.com)

### General

- 62745
  Fix undefined disabled icon. Contributed by Till Neunast (https://github.com/tilln)
- 62743
  Client auth must be enabled on distributed testing
- 62767
  NPE when searching under certain conditions. Contributed by Ubik Load Pack (support at ubikloadpack.com)
- 62790
  `ArrayIndexOutOfBoundsException` when calling replace without selecting the first match
- 62795
  JMeter master sometimes ends distributed test even though some of the slaves have not finished
- 62336
  396
  Some shortcuts are not working correctly on windows. Contributed by Michael Pavlov (michael.paulau at gmail.com)
- 62889
  Format JSON Arrays when displayed with JSON Path Tester.
- 62900
  ObjectProperty#getStringValue() can throw NullPointerException
- 63099
  Escape commata in function helper dialog only outside of variable replacement structures.
- 63105
  Export Transactions for Report: fix 2 bugs
- 63106
  Apply naming policy does not refresh UI
- 63180
  Apply Naming Policy allows multi selection but only considers first node
- 63090
  Remove slf4j-ext due to CVE-2018-8088

Thanks

We thank all contributors mentioned in bug and improvement sections above:

- Oleg Kalnichevski (olegk at apache.org)
- Till Neunast (https://github.com/tilln)
- Mingun (alexander_sergey at mail.ru)
- Ubik Load Pack
- Artem Fedorov (artem.fedorov at blazemeter.com)
- Stefan Seide (stefan at trilobyte-se.de)
- 刘士 (liushilive at outlook.com)
- Michael Pavlov (michael.paulau at gmail.com)
- Ori Marko (orimarko at gmail.com)
- Paco (paco.xu at daocloud.io)
- Hitesh Patel (hitesh.h.patel at gmail.com)
- Sonali (arora.sonali99 at gmail.com)
- Mohamed Ibrahim (rollno748 at gmail.com)
- U. Poblotzki (u.poblotzki at thalia.de)
- Saxonica

We also thank bug reporters who helped us improve JMeter.

Apologies if we have omitted anyone else.

Known problems and workarounds

- The Once Only controller behaves correctly under a Thread Group or Loop Controller, but otherwise its behaviour is not consistent (or clearly specified).
- The numbers that appear to the left of the green box are the number of active threads / total number of threads, the total number of threads only applies to a locally run test, otherwise it will show `0` (see 55510).
- Note that under some windows systems you may have this WARNING:

      java.util.prefs.WindowsPreferences
      WARNING: Could not open/create prefs root node Software\JavaSoft\Prefs at root 0
      x80000002. Windows RegCreateKeyEx(&hellip;) returned error code 5.

  The fix is to run JMeter as Administrator, it will create the registry key for you, then you can restart JMeter as a normal user and you won't have the warning anymore.
- You may encounter the following error:

      java.security.cert.CertificateException: Certificates does not conform to algorithm constraints

  if you run a HTTPS request on a web site with a SSL certificate (itself or one of SSL certificates in its chain of trust) with a signature algorithm using MD2 (like `md2WithRSAEncryption`) or with a SSL certificate with a size lower than 1024 bits. This error is related to increased security in Java 8+.
  To allow you to perform your HTTPS request, you can downgrade the security of your Java installation by editing the Java `jdk.certpath.disabledAlgorithms` property. Remove the MD2 value or the constraint on size, depending on your case.
  This property is in this file:

      JAVA_HOME/jre/lib/security/java.security

  See 56357 for details.
- Under Mac OSX Aggregate Graph will show wrong values due to mirroring effect on numbers. This is due to a known Java bug, see Bug JDK-8065373 The fix is to use JDK8_u45 or later.
- View Results Tree may fail to display some HTML code under HTML renderer, see 54586. This is due to a known Java bug which fails to parse "`px`" units in row/col attributes. See Bug JDK-8031109 The fix is to use JDK9 b65 or later.
- JTable selection with keyboard (SHIFTup/down) is totally unusable with Java 7 on Mac OSX. This is due to a known Java bug JDK-8025126 The fix is to use JDK 8 b132 or later.

# Version 5.0

Summary

- New and Noteworthy
- Incompatible changes
- Bug fixes
- Improvements
- Non-functional changes
- Known problems and workarounds
- Thanks

New and Noteworthy
Core improvements

Rest support has been improved in many fields

- Multipart/form-data requests now work for `PUT`, `DELETE` &hellip;
- It is now also possible to send a JSON Body with attached file
- Parameters entered in Parameters Tab are now used in body instead of being ignored

In distributed testing, JMeter now automatically prefixes thread names with engine host and port, this makes the counting of threads correct in the HTML report without any other configuration as it was required before

XPath 2.0 is supported in a new element called `XPath2 extractor` providing easier XML namespaces handling, up to date XPath syntax and better performances

Upgrade to HTTP Components 4.6 last APIs has been completed and JMeter does not rely anymore on deprecated APIs of this library

It is now possible to control in an easier way Loop breaking and Loop switching to next iteration. This is available in `Flow Control Action` and `Result Status Action Handler` elements

While Controller now exports a variable containing its current index named `__jm__<Name of your element>__idx`. So for example, if your While Controller is named WC, then you can access the looping index through `${__jm__WC__idx}`

Scripting / Debugging enhancements

Search feature has been improved to allow you to iterate in the tree over search results and do necessary replacements through `Next`/`Previous`/`Replace`/`Replace/Find` buttons

In View Results Tree, the request and response headers/body are clearly separated to allow you to better inspect requests and responses. You can also search in all those tabs for a particular value

Recording feature has been improved to provide a popup that is always on top when you navigate in browser allowing you to name transactions while you navigate in your application.

You can now restart JMeter from menu FileRestart

Live Reporting and Web Report
Reporting feature has been enhanced

A new Graph Total Transactions per second has been added to the HTML Web Report

It is now possible to graph over time custom metrics available as JMeter Variables through `sample_variables`. Those custom metrics graphs will be available in the HTML Report in `Custom Graphs section`

Hits per second graph now takes into account the embedded resources

In Live reporting, the sent and received bytes are now sent to Backends (InfluxDB or Graphite)

Functions

A New function `` has been introduced to obtain ThreadGroup name.

Incompatible changes

- Since JMeter 5.0, when using default HC4 Implementation, JMeter will reset HTTP state (SSL State + Connections) on each thread group iteration. If you don't want this behaviour, set `httpclient.reset_state_on_thread_group_iteration=false`
- Since JMeter 5.0, in relation to above remark, `https.use.cached.ssl.context` is deprecated and not used anymore.
- Since JMeter 5.0, when using CSV output, sub results will now be also output to CSV file. To revert to previous behaviour set `jmeter.save.saveservice.subresults=false`, see 62470, 60917, 62550.
- Since JMeter 5.0, `CSS/JQuery Extractor` has been renamed to `CSS Selector Extractor`
- Since JMeter 5.0, `Test Action` has been renamed to `Flow Control Action`
- Since JMeter 5.0, JMeter renames subResults to `parentName-N` where N is a number to ensure that Hits Per Second graph includes resources downloads, see 62550, 62470 and 60917

Improvements

### HTTP Samplers and Test Script Recorder

- 62260
  Improve Rest support. Contributed by Ubik Load Pack (support at ubikloadpack.com)
- 58757
  HTTP Request : Updated deprecated methods of HttpComponents to last APIs of httpclient-4.5.X. Contributed by Ubik Load Pack (support at ubikloadpack.com)
- 62212
  Recorder : Improve UX by providing a popup above all windows to be able to change Transaction names and pauses while using Browser. Contributed by Ubik Load Pack (support at ubikloadpack.com)
- 62248
  HTTP Request : Parameters entered in Parameters Tab should be used in body instead of being ignored. Partly based on a patch by Artem Fedorov contributed by Blazemeter.
- 60015
  Multipart/form-data works only for `POST` using HTTPClient4 while it should for `PUT`, `DELETE`, &hellip; Contributed by Ubik Load Pack (support at ubikloadpack.com)
- 62317
  HTTP(S) Test Script Recorder: allow to add ResultSaver to created sampler

### Other samplers

- 376
  JUnitSampler logs exceptions except assertion-failures from test cases as warnings. Contributed by Davide Angelocola (davide.angelocola at fisglobal.com)
- 62244
  Rename `Test Action` to `Flow Control Action`
- 62302
  Move JSR223 Sampler up the menu. Contributed by Ori Marko (orimarko at gmail.com)
- 62595
  SMTPSampler does not allow configuring the SSL/TLS protocols to be used on handshake. Contributed by Felipe Cuozzo (felipe.cuozzo at gmail.com)

### Controllers

- 62237
  While Controller : Export variable containing current index of iteration. Contributed by Ubik Load Pack (support at ubikloadpack.com)

### Listeners

- 62195
  Save Responses to a file : Improve component and UI. Contributed by Ubik Load Pack (support at ubikloadpack.com)
- 62209
  InfluxBackendListenerClient: First Assertion Failure Message must be sent if error code and response code are empty or OK
- 62269
  Bug 62269 - View Results Tree : Response and Request Tabs should contains Header and Body tabs. Contributed by Ubik Load Pack (support at ubikloadpack.com)
- 62270
  View Results Tree : Allow searching in Request headers, Response Headers, and Request body. Contributed by Ubik Load Pack (support at ubikloadpack.com)
- 62276
  InfluxDBBackendListenerClient / GraphiteBackendListenerClient : Add sent and received bytes to metrics. Contributed by Ubik Load Pack (support at ubikloadpack.com)

### Timers, Assertions, Config, Pre- & Post-Processors

- 62320
  Counter : Reference Name property is not clear
- 60991
  XPath Extractor : Implement XPath 2.0. Contributed by Ubik Load Pack (support at ubikloadpack.com)
- 62593
  Rename CSS/JQuery Extractor to CSS Selector Extractor. Contributed by Ori Marko (orimarko at gmail.com)

### Functions

- 62178
  Add default value to `` function. Contributed by Ori Marko (orimarko at gmail.com)
- 62178
  Add function `` function to obtain ThreadGroup name. Mainly contributed by Ori Marko (orimarko at gmail.com)
- 62533
  Allow use epoch time as Date String value in function ``
- 62541
  Allow ``, `` functions to support new syntax as `var x;`. Contributed by Ori Marko (orimarko at gmail.com)
- 61834
  Function Helper Dialog : Improve tests by showing variables and keeping them available between evaluations

### I18N

### Report / Dashboard

- 62243
  Dashboard : make option "`--forceDeleteResultFile`"/"`-f`" option delete folder referenced by "`-o`" option
- 62367
  HTML Report Generator: Add Graph Total Transactions per Second. Contributed mainly by Martha Laks (laks.martha at gmail.com)
- 62166
  Report/Dashboard: Provide ability to register custom graphs and metrics in the JMeter Dashboard. Contributed by Ubik Load Pack (support at ubikloadpack.com)
- 62542
  Report/Dashboard : Display more information on filters when graph is empty. Contributed by Ubik Load Pack (support at ubikloadpack.com)
- 62426
  Optimize performance of report generation. Based on feedback by Allen (444104595 at qq.com)
- 62550
  Modify SubResult Naming Policy
- 60917
  Load Test with embedded resources download : Hits per seconds does not take into account the downloaded resources

### General

- 62684
  Distributed Testing : Add automatically to thread name a prefix to identify engine. Contributed by Ubik Load Pack (support at ubikloadpack.com)
- 62155
  Search Feature: Make Search text field get focus
- 62156
  Search Feature : Distinguish between node that matches search and node that contains a child that matches search
- 62234
  Search/Replace Feature : Enhance UX and add Replace/Next/Previous/Replace & Find features. Contributed by Ubik Load Pack (support at ubikloadpack.com)
- 62238
  Add ability to Switch to next iteration of Current Loop. Contributed by Ubik Load Pack (support at ubikloadpack.com)
- 62239
  Add ability to Break Current Loop
- 61635
  Add a menu to restart JMeter
- 62470
  CSV Output : Enable logging of sub results when `jmeter.save.saveservice.subresults=true`. Contributed by Ubik Load Pack (support at ubikloadpack.com)
- 62473
  Setting "`saveservice_properties`" has counter intuitive behaviour
- 62354
  Correct calculation and usage of units for second per user (reported by jffagot05 at gmail.com)
- 62700
  Introduce `jsr223.init.file` to allow calling a JSR-223 script on JMeter startup
- 62128
  Try to guess `JMETER_HOME` correctly, when `jmeter.bat` is called from a batch file in another directory. Contributed by logox01 (logox01 at gmx.at)
- 386
  Add parameter support for RMI keystore creation scripts. Contributed by Logan Mauzaize (t524467 at airfrance.fr)
- 62065
  Use Maven artifact for JAF Module instead of embedded module
- 61714
  Update Real-time results documentation
- 382
  Correct typo in documentation. Reported by Perze Ababa (perze.ababa at gmail.com>)
- 392
  Correct typo in documentation. Reported by Aaron Levin
- 379
  Improve chinese translations. Contributed by XmeterNet

Non-functional changes

- 358
  365
  366
  375
  Updated to latest checkstyle (v8.8). Expanded Checkstyle to files in `src` and `test`; fixed newly checked files. Based on contribution by Graham Russell (graham at ham1.co.uk)
- 62095
  Correct description for right boundary parameter in Boundary Extractor. Contributed by Ori Marko (orimarko at gmail.com)
- 62113
  Updated to latest Bouncycastle (v1.60). Based on contribution by Olaf Flebbe (oflebbe at apache.org)
- 62171
  Remove `.md5` checksums and keep only `.sha512` checksums for source and binary archives
- Updated to groovy-all-2.4.15 (from groovy-all-2.4.13)
- Updated to asm-6.1 (from 6.0)
- Updated to tika-core and tika-parsers 1.18 (from 1.17)
- 62482
  Sync documentation to the implementation of the ForEachController. Based on contribution by Ori Marko (orimarko at gmail.com)
- 62529
  Updated to httpclient-4.5.6 (from httpclient 4.5.5) and updated to freemarker-2.3.28 (from freemarker-2.3.23). Based on patch by Ori Marko (orimarko at gmail.com)
- Updated to httpmime-4.5.6 (from httpmime-4.5.5)
- Updated to caffeine-2.6.2 (from caffeine-2.6.1)
- Updated to cglib-nodep-3.2.7 (from cglib-nodep-3.2.6)
- Updated to commons-dbcp2-2.4.0 (from commons-dbcp2-2.2.0)
- Updated to commons-pool2-2.6.0 (from commons-pool2-2.5.0)
- Updated to httpcore-4.4.10 (from httpcore-4.4.9)
- Updated to httpcore-nio-4.4.10 (from httpcore-nio-4.4.9)
- Updated to log4j-2.11.0 (from log4j-2.10.0)
- Updated to ph-css-6.1.1 (from ph-css-6.0.0)
- Updated to ph-commons-9.1.2 (from ph-commons-9.0.0)
- Updated to rhino-1.7.10 (from +rhino-1.7.7.2)
- Updated to commons-lang3-3.8 (from commons-lang3-3.7)

Bug fixes

### HTTP Samplers and Test Script Recorder

- 62114
  HTTP(S) Test Script Recorder : Client certificate authentication uses the first SSLManager created. Contributed by Ubik Load Pack (support at ubikloadpack.com)
- 61058
  HTTP Request : Add option `httpclient4.deflate_relax_mode` to avoid "Unexpected end of ZLIB input stream" when deflating what seems to be invalid streams. Contributed by Ubik Load Pack (support at ubikloadpack.com)
- 43612
  HTTP PUT does not honor request parameters. Implemented by Artem Fedorov (artem.fedorov at blazemeter.com) and contributed by BlazeMeter Ltd.
- 60190
  Content-Type is added for `POST` unconditionally. Contributed by Ubik Load Pack (support at ubikloadpack.com)
- 62462
  387
  Make delegation of credentials in SPNEGO possible again.
- 58807
  `Reset SSL State on Thread Group iteration only (was https.use.cached.ssl.context=false` is broken)
- 62716
  When Recording, JMeter removes Authorization from generated Header Manager when using Bearer Token

### Other Samplers

- 62235
  Java 9 - illegal reflective access by org.apache.jmeter.util.HostNameSetter
- 62464
  Set start- and end-time on JMS publisher sampler, even if initialization fails.
- 62616
  FTPSampler: Upload file-size is not counted in sentBytes

### Controllers

- 62265
  ModuleController behaves strangely

### Listeners

- 62097
  Update JTable in Aggregate Report only when new data has arrived. That way selections of rows will be kept longer around.
- 62203
  Influxdb BackendListener client: store user tags to annotation and internal transaction. Contributed by Sergey Batalin (sergey_batalin at mail.ru)
- 62251
  TextGraphiteMetricsSender does not invalidate lost connections in case of network errors
- 60705
  Fix headers of Aggregate Reports and friends when columns are moved around.
- 62463
  Distributed client/server setup: use different RMI ports for the remote objects when using SSL

### Timers, Assertions, Config, Pre- & Post-Processors

- 61664
  HTTP Authorization Manager : Digest works only with legacy , is not implemented. Contributed by Ubik Load Pack (support at ubikloadpack.com)
- 62252
  HTTP header merging logic does not correspond to the documentation
- 62554
  BoundaryExtractor : Field to check is not reset
- 62553
  Random element might return same value even if property "Per thread user (User)" is set to TRUE
- 62637
  Take scheduler into account when calcuting delay for Synchronizing Timer

### Functions

### I18N

- 62310
  French translation of Precise Throughput Timer label

### Report / Dashboard

- 62333
  Report Dashboard - When one series contains no value, the graph colors logic is wrong. Contributed by Ubik Load Pack (support at ubikloadpack.com)
- 62283
  Report Dashboard - Date is not correctly displayed on chart when granularity is &le;&nbsp;1 day
- 62520
  The tool-tip text when we hover on the point in 'Latency Vs Request' graph should be 'Median Latency'

### Documentation

- 62211
  Fix HTTP Request Server Documentation. Contributed by Ori Marko (orimarko at gmail.com)
- 388
  Fix a typo. Contributed by Giancarlo Romeo (giancarloromeo at gmail.com)

### General

- 62107
  JMeter fails to start under Windows when `JM_LAUNCH` contains spaces
- 62110
  A broken JUnit class (due to missing dependency) breaks JMeter menus. Contributed by Ubik Load Pack (support at ubikloadpack.com)
- 377
  Small fix of the docs. Contributed by Peter Doornbosch (peter.doornbosch at luminis.eu)
- 62124
  Recording templates : Add more exclusions and use Transaction Name by default
- 62127
  Store filename as String instead of File in FileEditor. This will prevent conversion of filenames from Unix style path separators to Windows style when used for example in CSV Data Set Config.
- 56150
  Keep the index right, when scrolling through the menu items.
- 62240
  If SampleMonitor implementation is a TestBean if will not be initialized correctly
- 62295
  Correct order of elements when duplicating a selection of multiple elements.
- 62397
  Don't break lines at commata when using JSON Path Tester
- 62281
  Prevent NPE in MapProperty. Patch by belugabehr (dam6923 at gmail.com)
- 62457
  In usermanual, the UUID Function's example is wrong. Contributed by helppass (onegaicimasu at hotmail.com)
- 62478
  Escape commata in parameters when constructing function strings in the GUI function helper. Reported by blue414 (blue414 at 163.com)
- 62463
  Fix usage of ports, when `client.rmi.localport` is set for distributed runs.
- 62545
  Don't use a colon as part of the "tab" string when indenting JSON in RenderAsJSON.
- Part of 62637 Avoid Integer overrun when dealing with very large values in `TimerService#adjustDelay`
- 62683
  Error dialog has no text when user opens completely invalid test plan.

Thanks

We thank all contributors mentioned in bug and improvement sections above:

- Graham Russell (graham at ham1.co.uk)
- Ori Marko (orimarko at gmail.com)
- Davide Angelocola (davide.angelocola at fisglobal.com)
- Ubik Load Pack
- Olaf Flebbe (oflebbe at apache.org)
- Peter Doornbosch (peter.doornbosch at luminis.eu)
- logox01 (logox01 at gmx.at)
- Sergey Batalin (sergey_batalin at mail.ru)
- XMeter
- Imane Ankhila (iankhila at ahlane.net)
- jffagot05 (jffagot05 at gmail.com)
- Perze Ababa (perze.ababa at gmail.com)
- Martha Laks (laks.martha at gmail.com)
- Logan Mauzaize (t524467 at airfrance.fr)
- belugabehr (dam6923 at gmail.com)
- Giancarlo Romeo (giancarloromeo at gmail.com)
- helppass (onegaicimasu at hotmail.com)
- blue414 (blue414 at 163.com)
- Aaron Levin
- Allen (444104595 at qq.com)
- Felipe Cuozzo (felipe.cuozzo at gmail.com)
- bangnab (ambrosetti.nicola at gmail.com)

We also thank bug reporters who helped us improve JMeter.

Apologies if we have omitted anyone else.

Known problems and workarounds

- View Results Tree may freeze rendering large response particularly if this response has no spaces, see 60816. This is due to an identified Java Bug UI stuck when calling `JEditorPane.setText()` or `JTextArea.setText()` with long text without space.

- The Once Only controller behaves correctly under a Thread Group or Loop Controller, but otherwise its behaviour is not consistent (or clearly specified).
- The numbers that appear to the left of the green box are the number of active threads / total number of threads, the total number of threads only applies to a locally run test, otherwise it will show `0` (see 55510).
- Note that under some windows systems you may have this WARNING:

      java.util.prefs.WindowsPreferences
      WARNING: Could not open/create prefs root node Software\JavaSoft\Prefs at root 0
      x80000002. Windows RegCreateKeyEx(&hellip;) returned error code 5.

  The fix is to run JMeter as Administrator, it will create the registry key for you, then you can restart JMeter as a normal user and you won't have the warning anymore.
- You may encounter the following error:

      java.security.cert.CertificateException: Certificates does not conform to algorithm constraints

  if you run a HTTPS request on a web site with a SSL certificate (itself or one of SSL certificates in its chain of trust) with a signature algorithm using MD2 (like `md2WithRSAEncryption`) or with a SSL certificate with a size lower than 1024 bits. This error is related to increased security in Java 8+.
  To allow you to perform your HTTPS request, you can downgrade the security of your Java installation by editing the Java `jdk.certpath.disabledAlgorithms` property. Remove the MD2 value or the constraint on size, depending on your case.
  This property is in this file:

      JAVA_HOME/jre/lib/security/java.security

  See 56357 for details.
- Under Mac OSX Aggregate Graph will show wrong values due to mirroring effect on numbers. This is due to a known Java bug, see Bug JDK-8065373 The fix is to use JDK8_u45 or later.
- View Results Tree may fail to display some HTML code under HTML renderer, see 54586. This is due to a known Java bug which fails to parse "`px`" units in row/col attributes. See Bug JDK-8031109 The fix is to use JDK9 b65 or later.
- JTable selection with keyboard (SHIFTup/down) is totally unusable with Java 7 on Mac OSX. This is due to a known Java bug JDK-8025126 The fix is to use JDK 8 b132 or later.

# Version 4.0

Summary

- New and Noteworthy
- Incompatible changes
- Bug fixes
- Improvements
- Non-functional changes
- Known problems and workarounds
- Thanks

New and Noteworthy
Core improvements

JMeter now supports JAVA 9.

New `Boundary Extractor` element available which provides easy extraction with better performances

New `JSON Assertion` element available to assert on JSON responses.

New `Precise Throughput Timer` element available which produces Poisson arrivals with given constant throughput.

JMS Point-to-Point sampler has been enhanced with `read`, `browse`, `clear` options.

Best property values are now selected on many Test Elements to ensure best practices are the defaults:

- Newly added `If Controller` now uses by default Expression which is the most performing option.
- Newly added JSR223 Test Element now cache compiled script by default if language used provides this feature.

`Loop controller` and `ForEach Controller` now expose their current iteration as a variable named `__jm__<Name of your element>__idx` that you can use like this for example for a Loop Controller named `MyLoopController`:

    ${__jm__MyLoopController__idx}

. See 61802

Cookies are now shown in View Results Tree during recording. They were previously always shown as empty.

`Response Assertion` now allows you to customize assertion message and assert on Request Data.

UX improvements

JMeter now uses Darcula LAF by default

Workbench has been dropped from UI, you can now use Non Test Elements as immediate children of Test Plan.

Menu UX have been improved to make most used elements available more rapidly.

HTTP(S) Test Script Recorder now allows you to name your transactions while recording in a more human readable way.

UX improvements made on, among the most notable :

- Module Controller informs user at least one Controller is required
- Function Helper Dialog (The wizard that helps using and testing functions) has been improved in many fields.
- Switch Controller trims text to avoid issues when a space is introduced before/after name
- Test Plan is now saved before running the test plan

Functions

New Function `__digest` provides easy computing of SHA-XXX, MDX hashes:

    ${__digest(MD5,Apache JMeter 4.0 rocks !,,,)}

will return `0e16c3ce9b6c9971c69ad685fd875d2b`

New Function `__dateTimeConvert` provides easy conversion between date formats:

    ${__dateTimeConvert(01 Jan 2017,dd MMM yyyy,dd/MM/yyyy,)}

will return `01/01/2017`

New Function `__changeCase` provides ability to switch to Upper / Lower / Capitalized cases

    ${__changeCase(Avaro omnia desunt\, inopi pauca\, sapienti nihil,UPPER,)}

will return `AVARO OMNIA DESUNT, INOPI PAUCA, SAPIENTI NIHIL`

New Functions `__isVarDefined` and `__isPropDefined` provide testing of properties and variables availability

    ${__isPropDefined(START.HMS)}

will return `true`

    ${__isVarDefined(JMeterThread.last_sample_ok)}

will return `true`

Scripting and Plugin Development

You can now call `SampleResult#setIgnore()` if you don't want your sampler to be visible in results

`JavaSamplerContext` used by `AbstractJavaSamplerClient` has been enhanced with new methods to easy plugin development.

JMeter now distributes additional Maven sources and javadoc artifacts into Maven repository

Plugins can now register listeners to be notified when a Test Plan is opened/closed

Live Reporting and Web Report

InfluxDB backend listener now allows you to add custom tags by adding them with prefix `TAG_`, see 61794

In Web Report responseTime distribution graph is more precise

Some bugfixes have been made on report generation, see 61900, 6190061956, 61899. Graphs Latency Vs Request and Response Time Vs Request did not exceed 1000 RPS due to 61962

Configuration of JMeter environment

JVM settings for the JMeter start scripts can be placed in a separate file (`bin/setenv.sh` on Unix and `bin\setenv.bat` on Windows), that gets called on startup. The startup script itself does not have to be edited anymore.

Incompatible changes

- `Start time` and `End date` of Thread Group have been removed, see 61549
- In distributed testing, mode `Hold` has been removed. Use alternative and more efficient modes
- For 3rd party plugins, the following method in `org.apache.jmeter.gui.tree.JMeterTreeNode` has been dropped for migration to Java 9 (61529)

      public Enumeration<JMeterTreeNode> children()

- `tearDown Thread Group` will now run on stop and shutdown of a test by default. If you don't want this behaviour, uncheck `Run tearDown Thread Groups after shutdown of main threads` on `Test Plan` element, see 61656
- Properties `sampleresult.getbytes.headers_size` and `sampleresult.getbytes.body_real_size` have been dropped, see 61587
- JMeter will now save your test plan whenever you run it. This behaviour can be controlled by property `save_automatically_before_run`, see 61731
- Workbench element has been dropped, you now directly add `Non Test Element` as children of Test Plan. When loading a Test Plan that contains the element JMeter will move the `Mirror Server`, `Property Display` and HTTP(s) `Test Script Recorder` elements as direct children of Test Plan. For any other element, it will create a `Test Fragment` element called `Workbench Test Fragment and move the elements in it`.
- Following classes have been dropped (`org.apache.jmeter.functions.util.ArgumentEncoder`, `org.apache.jmeter.functions.util.ArgumentDecoder`), see 335
- In JMS Point-to-Point sampler, setting timeout to 0 will now mean infinite timeout while previously it would be switched to 2000 ms, see 61829
- When Assertions are at different scopes, they are executed starting with the most OUTER one to the most INNER one. See 61846
- JMeter now starts by default using English locale. This change is due to missing translations in many supported languages. You can change locale by modifying in jmeter and jmeter.bat (or preferably setenv.sh/setenv.bat) the `JVM_ARGS` system property values. We'd also be very grateful if you can contribute translations in supported languages.
- SwitchController now trims by default the content of switch to avoid issue related to unwanted spaces. See 61771
- JMeter JVM heap settings have changed from `-Xms512m -Xmx512m` to `-Xms1g -Xmx1g`
- Beanshell version has been upgraded to bsh-2.0b6 which introduces breaking changes and more strict parsing rules

Improvements

### HTTP Samplers and Test Script Recorder

- 316
  Warn about empty truststore loading. Contributed by Vincent Herilier (https://github.com/vherilier)
- 61639
  HTTP(S) Test Script Recorder: In request filtering tab, uncheck by default "Notify Child Listeners of filtered samplers"
- 61672
  HTTP(S) Test Script Recorder: Have the ability to choose the sampler name while keeping the ability to just add a prefix
- 53957
  HTTP Request: In Parameters tab, allow pasting of content coming from Firefox and Chrome (unparsed)
- 61587
  Drop properties `sampleresult.getbytes.headers_size` and `sampleresult.getbytes.body_real_size`
- 61843
  HTTP(S) Test Script Recorder: Add SAN to JMeter generated CA Certificate. Contributed by Matthew Buckett
- 61901
  Support for `https.cipherSuites` System property. Contributed by Jeremy Arnold (jeremy at arnoldzoo.org)

### Other samplers

- 61544
  JMS Point-to-Point Sampler: Enhance communication styles with read, browse, clear. Based on a contribution by Benny van Wijngaarden (benny at smaragd-it.nl)
- 61829
  JMS Point-to-Point: If Receive Queue is empty and a timeout is set, it is not taken into account. Contributed by Ubik Load Pack (support at ubikloadpack.com)
- 61739
  Java Request / JavaSamplerClient: Improve `org.apache.jmeter.protocol.java.sampler.JavaSamplerContext`
- 61762
  Start Next Thread Loop should be used everywhere

### Controllers

- 61675
  If Controller: Use expression by default and add a warning when the other mode is used. Contributed by Ubik Load Pack (support at ubikloadpack.com)
- 61770
  Module Controller: Inform user in UI that he needs to have at least one Controller in his plan. Contributed by Ubik Load Pack (support at ubikloadpack.com)
- 61771
  SwitchController: Switch field should be trimmed by safety

### Listeners

- 57760
  View Results Tree: Cookie Header is wrongly shown as empty (no cookies) when viewing a recorder Sample Result. Contributed by Ubik Load Pack (support at ubikloadpack.com)
- 61769
  View Results Tree: Use syntax highlighter in XPath Tester, JSON Path Tester and CSS/JQuery Tester. Contributed by Ubik Load Pack (support at ubikloadpack.com)
- 61776
  View Results Tree: Expansion of `Add expand/collapse all` menu in render XML view. Contributed by Maxime Chassagneux and Graham Russell
- 61852
  View Results Tree: Add a Boundary Extractor Tester
- 61794
  Influxdb backend: Add as many custom tags as wanted by just create new lines and prefix theirs name by "`TAG_`" on the GUI backend listener

### Timers, Assertions, Config, Pre- & Post-Processors

- 60213
  New component: Boundary based extractor
- 61845
  New Component JSON Assertion based on AtlanBH JSON Path Assertion donated to JMeter-Plugins and migrated into JMeter core by Artem Fedorov (artem at blazemeter.com)
- 61931
  New Component: Precise Throughput Timer, timer that produces Poisson arrivals with given constant throughput. Contributed by Vladimir Sitnikov (sitnikov.vladimir at gmail.com)
- 61644
  HTTP Cache Manager: "Use Cache-Control/Expires header when processing GET requests" should be checked by default
- 61645
  Response Assertion: Add ability to assert on Request Data
- 51140
  Response Assertion: add ability to set a specific error/failure message that is later shown in the Assertion Result. Contributed by Ubik Load Pack (support at ubikloadpack.com)
- 61534
  Convert AssertionError to a failed assertion, allowing users to use assert in their code. Fixing a regression introduced in 3.2
- 61756
  Extractors: Improve label name "Reference name" to make it clear what it makes
- 61758
  `Apply to:` field in Extractors, Assertions: When entering a value in `JMeter Variable Name`, the radio box `JMeter Variable Name` should be selected by default. Contributed by Ubik Load Pack (support at ubikloadpack.com)
- 61846
  Scoped Assertion should follow same order of evaluation as Post Processors

### Functions

- 61724
  Add `__digest` function to provide computing of Hashes (SHA-XXX, MDX). Based on a contribution by orimarko at gmail.com
- 61735
  Add `__dateTimeConvert` function to provide date formats conversions. Based on a contribution by orimarko at gmail.com
- 61760
  Add `__isPropDefined` and `__isVarDefined` functions to know if property or variable exist. Contributed by orimarko at gmail.com
- 61759
  Add `__changeCase` function to change different cases of a string. Based on a contribution by orimarko at gmail.com
- 61561
  Function helper dialog should display exception in result
- 61738
  Function Helper Dialog: Add Copy in Generate and clarify labels. Contributed by Ubik Load Pack (support at ubikloadpack.com)
- 62027
  Help: Introduce property `help.local` to allow choosing between local (offline) documentation and online documentation
- 61593
  Remove Detail, Add, Add from Clipboard, Delete buttons in Function Helper GUI

### I18N

- 61606
  Translate button `Browse&hellip;` in some elements (which use FileEditor class)
- 61747
  HTTP(S) Test Script Recorder: add the missing doc to "Create transaction after request (ms)"

### Report / Dashboard

- 61871
  Reduce jmeter.reportgenerator.graph.responseTimeDistribution.property.set_granularity default value from 500ms to 100ms
- 61879
  Remove useless files in HTML report template

### General

- 61591
  Drop Workbench from test tree. Implemented by Artem Fedorov (artem at blazemeter.com) and contributed by BlazeMeter Ltd.
- 61549
  Thread Group: Remove start and end date
- 61529
  Migration to Java 9. Partly contributed by Ubik Load Pack (support at ubikloadpack.com)
- 61709
  SampleResult: Add a method `setIgnore()` to make JMeter ignore the SampleResult and not send it to listeners
- 61806
  Allow to use `SampleResult#setIgnore()` in post-processors and assertions script (JSR223 elements)
- 61607
  Add browse button in all BeanShell elements to select BeanShell script
- 61627
  Don't clear LogView anymore when clicking on Warning/Errors Indicator
- 61629
  Add Think Times to Children menu should not consider disabled elements
- 61655
  SampleSender: Drop HoldSampleSender implementation
- 61656
  `tearDown Thread Group` should run by default at stop or shutdown of test
- 61659
  `JMeterVariables#get()` should apply `toString()` on non string objects
- 61555
  Metaspace should be restricted as default
- 61693
  JMeter aware of Docker (`-XX:+UnlockExperimentalVMOptions` `-XX:+UseCGroupMemoryLimitForHeap`)
- 61694
  Add `-server` option in `jmeter.bat`
- 61697
  Introduce Darcula Look And Feel to make JMeter UI more attractive
- 61704
  Toolbar: Improve a bit the right part
- 61731
  Enhance Test plan Backup with option to save before run. Based on a contribution by orimarko at gmail.com
- 61640
  JSR223 Test Elements: Enable by default caching. Contributed by Ubik Load Pack (support at ubikloadpack.com)
- 61785
  Add HelpUseful links to create issues and download nightly build
- 61808
  Fix main frame position. Implemented by Artem Fedorov (artem at blazemeter.com) and contributed by BlazeMeter Ltd.
- 61802
  Loop / ForEach Controller should expose a variable for current iteration. Contributed by Ubik Load Pack (support at ubikloadpack.com)
- 349
  Add i18n resources(zh_CN). Contributed by Helly Guo (https://github.com/hellyguo)
- 351
  Fixed about dialog position on first view. Contributed by Graham Russell (graham at ham1.co.uk)
- 352
  Menu bar - added mnemonics to more menu items. Contributed by Graham Russell (graham at ham1.co.uk)
- 353
  Re-wrote some existing tests in Spock. Contributed by Graham Russell (graham at ham1.co.uk)
- 61919
  UX: Reorder Menus. Contributed by Graham Russell (graham at ham1.co.uk)
- 61920
  Plugins: Add ability to listen to Test Plan loading/closing. Contributed by Peter Doornbosch (https://bitbucket.org/pjtr/)
- 61935
  Plugins: Let GUI component (dynamically) decide whether it can be added via the menu or not. Contributed by Peter Doornbosch (https://bitbucket.org/pjtr/)
- 61969
  When changing LAF through GUI, user should be informed that it is better to restart
- 61970
  JMeter now uses English as default locale to avoid missing translations in some locales make UI look weird
- 56368
  Create and Deploy source artifacts to Maven central
- 61973
  Create and Deploy javadoc artifacts to Maven central
- 371
  Fix example in documentation for . Contributed by Konstantin Kalinin (kkalinin at hotmail.com)
- 62039
  Distributed testing: Provide ability to use SSL

Non-functional changes

- Updated to bsh-2.0b6 (from bsh-2.0b5)
- Updated to groovy-all-2.4.13 (from groovy-all-2.4.12)
- Updated to rhino-1.7.7.2 (from rhino-1.7.7.1)
- Updated to tika-core and tika-parsers 1.17 (from 1.16)
- Updated to commons-dbcp2-2.2.0 (from 2.1.1)
- Updated to caffeine 2.6.1 (from 2.5.5)
- Updated to commons-codec-1.11 (from 1.10)
- Updated to commons-io-2.6 (from 2.5)
- Updated to commons-lang3-3.7 (from 3.6)
- Updated to commons-pool2-2.5.0 (from 2.4.2)
- Updated to asm-6.0 (from 5.2)
- Updated to jsoup-1.11.2 (from 1.10.3)
- Updated to cglib-nodep-3.2.6 (from 3.2.5)
- Updated to ph-css 6.0.0 (from 5.0.4)
- Updated to ph-commons 9.0.0 (from 8.6.6)
- Updated to log4j2 2.10.0 (from 2.8.2)
- Updated to httpcore 4.4.9 (from 4.4.7)
- Updated to httpclient 4.5.5 (from 4.5.3)
- Updated to jodd 4.1.4 (from 3.8.6)
- 61642
  Improve FTP test coverage
- 61641
  Improve JMS test coverage
- 61651
  Improve TCP test coverage
- 61651
  Improve OS test coverage. Partly contributed by Aleksei Balan (abalanonline at gmail.com)
- 319
  Removed commented out code. Contributed by Graham Russell (graham at ham1.co.uk)
- 322
  General JavaDoc cleanup. Contributed by Graham Russell (graham at ham1.co.uk)
- 323
  Extracted method and used streams to improve readability. Contributed by Graham Russell (graham at ham1.co.uk)
- 324
  Save backup refactor. Contributed by Graham Russell (graham at ham1.co.uk)
- 327
  Utilising more modern Java, simplifying code and formatting code and comments. Contributed by Graham Russell (graham at ham1.co.uk)
- 332
  Add the spock framework for groovy unit tests. Contributed by Graham Russell (graham at ham1.co.uk)
- 334
  Enable running of JUnit tests from within IntelliJ with default config. Contributed by Graham Russell (graham at ham1.co.uk)
- 335
  Removed `functions.util.*` as they don't seem to be used (for many years). Contributed by Graham Russell (graham at ham1.co.uk)
- 61867
  345
  Updated to latest checkstyle (v8.5), Added many more rules to checkstyle, Included checking of test files and more file types. Contributed by Graham Russell (graham at ham1.co.uk)
- 350
  Parallelised unit tests. Contributed by Graham Russell (graham at ham1.co.uk)
- 61966
  Setup Test Results Analyzer in jenkins
- 343
  Reduce the size of some images in the documentation. Contributed by Graham Russell (graham at ham1.co.uk)

Bug fixes

### HTTP Samplers and Test Script Recorder

- 61569
  JMS Point-to-Point Test Plan: Synchronization issue when putting reply. Contributed by Igor Panainte (panainte.i at gmail.com)

### Other Samplers

- 61698
  Test Action: It stop is selected, samplers following Test Action can run
- 61707
  Test Action: Target is ignored when pause is selected, so it should be disabled
- 61827
  JMSPublisher: Don't add new line at the end of the file. Contributed by Graham Russell (graham at ham1.co.uk)

### Controllers

- 61556
  Clarify in documentation performance impacts of `${}` var usage in IfController and groovy. Contributed by Justin McCartney (be_strew at yahoo.co.uk)
- 61713
  Test Fragment has option to Change Controller and Insert Parent. Contributed by Ubik Load Pack (support at ubikloadpack.com)
- 61965
  Module and Include Controller should not allow to add meaningless elements in their context.
- 62062
  ThroughputController: StackOverFlowError triggered when throughput=0 (Total Executions or Percentage Executions) Partly implemented by Artem Fedorov (artem.fedorov at blazemeter.com) and contributed by BlazeMeter Ltd.

### Listeners

- 61742
  BackendListener: fix default value for `backend_graphite.send_interval`
- 61878
  BackendListener: NPE if BackendListenerClient#getDefaultParameters returns null
- 61950
  View Results Tree: Content-Type `audio/mpegurl` is wrongly considered as binary

### Timers, Assertions, Config, Pre- & Post-Processors

- 61716
  Header Manager: When pasting Headers from Firefox or Chrome spaces are introduced as first character of value

### Functions

- 61588
  Better log message for function
- 61619
  In Function Helper Dialog, the 1st function doesn't display default parameters
- 61628
  If split string has empty separator default separator is not used
- 61752
  `__RandomDate`: Function does not allow missing last parameter used for variable name

### I18N

### Report / Dashboard

- 61807
  Web Report: fix error in `getTop5ErrorMetrics`. Contributed by Graham Russell (graham at ham1.co.uk)
- 61900
  Report Generator: Report generation fails if separator is a regex reserved char like `|`
- 61925
  CsvSampleReader does not increment row in nextSample(). Contributed by Graham Russell (graham at ham1.co.uk)
- 61956
  Report Generation: `-f` of `-forceDeleteResultFile` option does not work. Contributed by Ubik Load Pack (support at ubikloadpack.com)
- 61899
  Report Generation: When `jmeter.save.saveservice.print_field_names` is false and `sample_variables` are set report generation fails. Contributed by Ubik Load Pack (support at ubikloadpack.com)
- 61962
  Latency Vs Request and Response Time Vs Request graphs do not exceed 1000 RPS. Contributed by Ubik Load Pack (support at ubikloadpack.com)

### General

- 61661
  Avoid startup/shutdown problems due to 3rd party Thread Listener plugins throwing RuntimeException
- 61625
  File Editor used in BeanInfo behaves strangely under all LAFs with impact on CSVDataSet, JSR223, BSF, Beanshell Element
- 61844
  Maven pom.xml: Libraries used in testing should have scope test
- 61842
  Saving with no changes causes a save and duplicate, identical backup file

Thanks

We thank all contributors mentioned in bug and improvement sections above:

- Igor Panainte (panainte.i at gmail.com)
- Emilian Bold (emi at apache.org)
- Ubik Load Pack
- Justin McCartney (be_strew at yahoo.co.uk)
- Vincent Herilier (https://github.com/vherilier)
- Aleksei Balan (abalanonline at gmail.com)
- Graham Russell (graham at ham1.co.uk)
- orimarko at gmail.com
- Artem Fedorov (artem at blazemeter.com)
- BlazeMeter Ltd
- Benny van Wijngaarden (benny at smaragd-it.nl)
- Matthew Buckett (https://github.com/buckett)
- Helly Guo (https://github.com/hellyguo)
- Peter Doornbosch (https://bitbucket.org/pjtr/)
- Jeremy Arnold (jeremy at arnoldzoo.org)
- Vladimir Sitnikov (sitnikov.vladimir at gmail.com)
- Konstantin Kalinin (kkalinin at hotmail.com)

We also thank bug reporters who helped us improve JMeter.
For this release we want to give special thanks to the following reporters for the clear reports and tests made after our fixes:

- user7294900 on Stackoverflow (orimarko at gmail.com)

Apologies if we have omitted anyone else.

Known problems and workarounds

- View Results Tree may freeze rendering large response particularly if this response has no spaces, see 60816. This is due to an identified Java Bug UI stuck when calling `JEditorPane.setText()` or `JTextArea.setText()` with long text without space.

- The Once Only controller behaves correctly under a Thread Group or Loop Controller, but otherwise its behaviour is not consistent (or clearly specified).
- The numbers that appear to the left of the green box are the number of active threads / total number of threads, the total number of threads only applies to a locally run test, otherwise it will show `0` (see 55510).
- Note that under some windows systems you may have this WARNING:

      java.util.prefs.WindowsPreferences
      WARNING: Could not open/create prefs root node Software\JavaSoft\Prefs at root 0
      x80000002. Windows RegCreateKeyEx(&hellip;) returned error code 5.

  The fix is to run JMeter as Administrator, it will create the registry key for you, then you can restart JMeter as a normal user and you won't have the warning anymore.
- You may encounter the following error:

      java.security.cert.CertificateException: Certificates does not conform to algorithm constraints

  if you run a HTTPS request on a web site with a SSL certificate (itself or one of SSL certificates in its chain of trust) with a signature algorithm using MD2 (like `md2WithRSAEncryption`) or with a SSL certificate with a size lower than 1024 bits. This error is related to increased security in Java 8+.
  To allow you to perform your HTTPS request, you can downgrade the security of your Java installation by editing the Java `jdk.certpath.disabledAlgorithms` property. Remove the MD2 value or the constraint on size, depending on your case.
  This property is in this file:

      JAVA_HOME/jre/lib/security/java.security

  See 56357 for details.
- Under Mac OSX Aggregate Graph will show wrong values due to mirroring effect on numbers. This is due to a known Java bug, see Bug JDK-8065373 The fix is to use JDK8_u45 or later.
- View Results Tree may fail to display some HTML code under HTML renderer, see 54586. This is due to a known Java bug which fails to parse "`px`" units in row/col attributes. See Bug JDK-8031109 The fix is to use JDK9 b65 or later.
- JTable selection with keyboard (SHIFTup/down) is totally unusable with Java 7 on Mac OSX. This is due to a known Java bug JDK-8025126 The fix is to use JDK 8 b132 or later.

# Version 3.3

Summary

- New and Noteworthy
- Incompatible changes
- Bug fixes
- Improvements
- Non-functional changes
- Known problems and workarounds
- Thanks

New and Noteworthy

JMeter does not yet support JAVA 9, next JMeter version will support it, you can help and follow progress on this item in 61529.

Using last minor version of JAVA 8 is advised to avoid facing any JDK bug.

Core improvements

HTTP Sampler now supports Brotli decompression.

CacheManager now completely supports Vary header.

InfluxDB BackendListener now supports sending results to InfluxDB through UDP protocol. It has also been enhanced to send number of errors by response code and message for each transaction

TCP Sampler now computes latency, see 60156

Upgraded dependencies to last available versions bringing performance improvements and bug fixes

Continued to improve the quality of our code and tests coverage. See Quality report

UX improvements

More work has been done to better support HiDPI.

Some bugs, that crept in with the work on lowering the memory usage of View Results Tree, were fixed.

The constant `DEFAULT_IMPLEMENTATION` was removed from CookieManager, as it lost it purpose with the removal of the alternate HTTP Client implementation in the last release

JDBC Sampler UX has been improved by adding select boxes for drivers and validation queries.

If Controller and While Controller UX have been improved

Report/Dashboard improvements
A new Help menu item has been added to simplify configuration of report generation. Documentation improvements Incorporated feedback about unclear documentation.

Functions

Function Helper Dialog: a new field that shows execution result has been added.

New functions:

- `` - return a date in various formats with the specified amount of seconds/minutes/hours/days added.
- `` - generate random date within a specific date range.

Incompatible changes

- In InfluxDbBackendListenerClient, `statut` property has been renamed to `status`
- In CookieManager, `DEFAULT_POLICY` and `DEFAULT_IMPLEMENTATION` constants are now private.

  If you're using `ignorecookies` with HC3CookieHandler (< JMeter 3.1) configuration will be reset, ensure you put it back.

- JMeter will not truncate anymore by default responses exceeding 10 MB. If you want to enable this truncation, see property `httpsampler.max_bytes_to_store_per_request`
- `org.apache.jmeter.protocol.tcp.sampler.TCPClient.read(InputStream)` has been deprecated in favor or org.apache.jmeter.protocol.tcp.sampler.TCPClient.read(InputStream, SampleResult), ensure you update your implementation to be able to compute latency, see 60156

### Removed elements or functions

- `_StringFromFile` function has been dropped, use `` instead

Improvements

### HTTP Samplers and Test Script Recorder

- 61056
  HTTP : Support brotli decoding
- 61135
  CookieManager : Drop Implementation select box and cleanup class
- 61492
  HTTP(S) Test Script Recorder : Add the possibility to change the value of proxy.pause in the GUI

### Other samplers

- 61320
  Test Action : Set duration to `0` by default
- 61504
  JDBC Connection Configuration : Set Max Number of Connections to `0` by default
- 61505
  JDBC Connection Configuration : Set "Validation Query" to `empty` by default to use `isValid` method of JDBC driver
- 61506
  JDBC Connection Configuration : Add a list for main databases validation queries for "Validation Query" attribute
- 61507
  JDBC Connection Configuration : Add a list for main databases JDBC driver class name for "JDBC Driver class" attribute
- 61525
  OS Process Sampler : Add browser button to Command and Working directory fields
- 60156
  TCPSampler : Latency is not measured for TCP Sampler. Contributed by Ubik Load Pack (support at ubikloadpack.com)
- 61039
  CSV data set config : Add browser button to Filename field
- 61527
  CSV data set config : Add a list for main file encoding values for File encoding attribute

### Controllers

- 61131
  IfController and WhileController : Improve UX

### Listeners

- 61167
  InfluxdbBackendListener : add number of errors by response code and message for each transaction
- 61068
  Introduce property `resultcollector.action_if_file_exists` to control the popup "File already exists" when starting a test
- 61457
  InfluxDB backend listener client : Support sending result to InfluxDB through UDP protocol. Partly based on 302 by Junlong Wu (github id mybreeze77)

### Timers, Assertions, Config, Pre- & Post-Processors

- 61176
  298
  Cache responses that have `vary` header in the `CacheManager`.

### Functions

- 61040
  Add a time shifting function
- 61126
  Function Helper Dialog : Add a field that shows execution result
- 61508
  Add a random date within a specific date range function

### I18N

- 61509
  Better label/translation/documentation for labels start and max for Counter element

### Report / Dashboard

- 61481
  Help Menu Item to export transaction for Web report

### General

- When looking for classes in `ActionRouter`, fall back to location of the jar, where `ActionRouter` is loaded from. Provided by Emilian Bold (emi at apache.org)
- 61510
  Set 'Max Number of Connections' to `0` into 'JDBC Connection Configuration' for the 'JDBC Load Test template'
- 61399
  Make some bin and extras scripts Shellcheck compatible. Contributed by Wolfgang Wagner (internetwolf2000 at hotmail.com)

Non-functional changes

- Updated to groovy 2.4.12 (from 2.4.10)
- Updated to caffeine 2.5.5 (from 2.4.0)
- Updated to commons-jexl3 3.1 (from 3.0)
- Updated to ph-css 5.0.4 (from 5.0.3)
- Updated to ph-commons 8.6.6 (from 8.6.0)
- Updated to log4j2 2.8.2 (from 2.8.1)
- Updated to xmlgraphics-commons 2.2 (from 2.1)
- Updated to jodd 3.8.6 (from 3.8.1)
- Updated to xstream 1.4.10 (from 1.4.9)
- Updated to Apache Tika 1.16 (from 1.14)
- Updated to jsoup-1.10.3 (from 1.10.2)
- Updated to commons-lang3 3.6 (from 3.5)
- Updated to json-path 2.4.0 (from 2.2.0)
- Updated to httpcore 4.4.7 (from 4.4.6)
- 61438
  Change the cryptographic signature of packages from sha-1 to sha-512

Bug fixes

### HTTP Samplers and Test Script Recorder

- 61384
  Don't set the charset on enclosing `multipart/form-data` header. It irritates some servers.
  The charset was added sometime back while refactoring to use a newer API of http client. See 56141 for more info.
- 61456
  `java.lang.ArrayIndexOutOfBoundsException` when recording with JMeter and weird Basic Auth Authorization header
- 61395
  Large server response truncation can impact recording

### Other Samplers

- 60889
  JMeter JDBC sample calls `SELECT USER()` when testing with MySQL JDBC due to `Connection#toString` call for response headers.
- 61259
  JDBC Request : since JMeter 3.0, when JDBC auto-commit is `false`, a rollback statement happens each time a Request is executed. Partly contributed by Liu XP (liu_xp2003 at sina.com)
- 61319
  Fix regression: SMTP Sampler could not send mails, when no attachments were specified.

### Controllers

- 61375
  Use system DNS resolver as last resort, when resolving entries in the static host table.

### Listeners

- 61005
  View Results Tree - Browser Response Data is not clearing
- 61121
  InfluxdbBackendListenerClient: Only all percentiles are sent, not `KO` and `OK`
- 60961
  Try to keep status of selected and expanded elements in View Results Tree when new elements are added.
- 61198
  Backend Listener does not work properly in main script when included scripts also contain Backend Listener
- 61493
  Max/Min threads are interchanged in Graphite and InfluxDB backend listener

### Timers, Assertions, Config, Pre- & Post-Processors

- 58743
  293
  TableEditor can't be saved, when using two or more instances. Bugfix provided by Emilian Bold (emi at apache.org)
- 61314
  HTTP URL Re-writing Modifier doesn't replace existing `jsessionid` in http sampler, but adds it to the end
- 61336
  BeanShell Assertion : mistake in Chinese translation

### Functions

- 61258
  StringFromFile function is mentioned twice in the Function helper dialog
- 61260
  `` function returns null despite XPath checker founds matches
- 58876
  TestPlanName function returns `null` for a newly saved Test Plan and uses previously opened one for a new one

### I18N

### Report / Dashboard

- 61129
  Report/Dashboard : If response code is empty but a `failureMessage` is present, Errors and Top 5 Errors are not accurate. Contributed by Ubik Load Pack (support at ubikloadpack.com)
- 61151
  Report/Dashboard : Top 5 Errors by Sampler and Errors : If assertion contains html code, the html part is hidden

### General

- 60743
  Stopping / Shutting down Test might create a deadlock due to HTTPCORE-446, fixed by HttpCore upgrade to 4.4.7
- 60994
  Fix some typo in comments or log messages. 289 and 290
- 61011
  Replace occurrences count is not correct (Path and Host replacement are counted twice)
- 61026
  Cannot run program "keytool": CreateProcess error=2 when starting JMeter 3.2 in GUI mode
- 61054
  Endless loop in `JOrphanUtils#replaceAllWithRegex` when regex is contained in replacement
- 60995
  HTTP Test Script Recorder: Port field is very small under some L&F
- 61073
  HTTP(S) Test Script Recorder panel have some fields with bad size on HiDPI screen or GTK+ L&F on Linux/XWayland
- 57958
  Fix transaction sample not generated if thread stops/restarts. Implemented by Artem Fedorov (artem at blazemeter.com) and contributed by BlazeMeter Ltd.
- 61050
  Handle uninitialized RessourceBundle more gracefully, when calling `JMeterUtils#getResString`.
- 61100
  Invalid GC Log Filename on Windows
- 57962
  Allow to use variables ( from User Defined Variables only ) in all listeners in slave mode
- 61270
  Fixed width fonts too small in text areas to read under HiDPI (user manual bug)
- 61292
  Make processing of samples in reporter more robust.
- 61359
  When cutting an element from Tree, Test plan is not marked as dirty
- 61380
  JMeter shutdown using timers releases thundering herd of interrupted samplers
- 57055
  CheckDirty.doAction should clear previousGuiItems for `SUB_TREE_SAVED`

Thanks

We thank all contributors mentioned in bug and improvement sections above:

- Anass Benomar (abenomar at umanis.com, Mithrandir0407 at github)
- Anthony Kearns (anthony.kearns atrightside.co)
- Emilian Bold (emi at apache.org)
- Liu XP (liu_xp2003 at sina.com)
- Ubik Load Pack
- Wolfgang Wagner (internetwolf2000 at hotmail.com)
- Junlong Wu (github id mybreeze77)

We also thank bug reporters who helped us improve JMeter.
For this release we want to give special thanks to the following reporters for the clear reports and tests made after our fixes:

- Liu XP (liu_xp2003 at sina.com)
- Alexander Podelko (apodelko at yahoo.com)

Apologies if we have omitted anyone else.

Known problems and workarounds

- View Results Tree may freeze rendering large response particularly if this response has no spaces, see 60816. This is due to an identified Java Bug UI stuck when calling `JEditorPane.setText()` or `JTextArea.setText()` with long text without space.

- The Once Only controller behaves correctly under a Thread Group or Loop Controller, but otherwise its behaviour is not consistent (or clearly specified).
- The numbers that appear to the left of the green box are the number of active threads / total number of threads, the total number of threads only applies to a locally run test, otherwise it will show `0` (see 55510).
- Note that under some windows systems you may have this WARNING:

      java.util.prefs.WindowsPreferences
      WARNING: Could not open/create prefs root node Software\JavaSoft\Prefs at root 0
      x80000002. Windows RegCreateKeyEx(&hellip;) returned error code 5.

  The fix is to run JMeter as Administrator, it will create the registry key for you, then you can restart JMeter as a normal user and you won't have the warning anymore.
- You may encounter the following error:

      java.security.cert.CertificateException: Certificates does not conform to algorithm constraints

  if you run a HTTPS request on a web site with a SSL certificate (itself or one of SSL certificates in its chain of trust) with a signature algorithm using MD2 (like `md2WithRSAEncryption`) or with a SSL certificate with a size lower than 1024 bits. This error is related to increased security in Java 8+.
  To allow you to perform your HTTPS request, you can downgrade the security of your Java installation by editing the Java `jdk.certpath.disabledAlgorithms` property. Remove the MD2 value or the constraint on size, depending on your case.
  This property is in this file:

      JAVA_HOME/jre/lib/security/java.security

  See 56357 for details.
- Under Mac OSX Aggregate Graph will show wrong values due to mirroring effect on numbers. This is due to a known Java bug, see Bug JDK-8065373 The fix is to use JDK8_u45 or later.
- View Results Tree may fail to display some HTML code under HTML renderer, see 54586. This is due to a known Java bug which fails to parse "`px`" units in row/col attributes. See Bug JDK-8031109 The fix is to use JDK9 b65 or later.
- JTable selection with keyboard (SHIFTup/down) is totally unusable with Java 7 on Mac OSX. This is due to a known Java bug JDK-8025126 The fix is to use JDK 8 b132 or later.

# Version 3.2

Summary

- New and Noteworthy
- Incompatible changes
- Bug fixes
- Improvements
- Non-functional changes
- Known problems and workarounds
- Thanks

New and Noteworthy
IMPORTANT CHANGES

JMeter now requires Java 8. Ensure you use the most up to date version.

JMeter logging has been migrated to SLF4J and Log4j 2. This affects configuration and 3rd party plugins, see below "Logging changes".

Starting with JMeter version 3.2 the number of results in View Results Tree is limited by default to 500 entries. If you want more entries, you have to set the property `view.results.tree.max_results` to a higher value, or to `0`, if you don't want to impose any limit. You can set the property in bin/user.properties. More info might be found here.

Core improvements

- JMeter now provides a new BackendListener implementation that interfaces InfluxDB. This implementation sends data using Asynchronous HTTP calls to InfluxDB through its HTTP API and give you the following graphs with annotations:
- DNS Cache Manager now has a table to allow static host resolution.
- JMS Publisher and Subscriber now allow reconnection on error with pause.
- Variables in JMS Publisher are now supported for all types of messages. Add the encoding type of the file to parse its content
- XPath Extractor now allows extraction randomly, by index or for all matches.
- Response Assertion now allows to work on Request Header, provides a "OR" combination and has a better cell renderer
- JMeter now uses Oracle Nashorn Javascript engine instead of Rhino. This provides a faster execution of Javascript.
- HTTP HC4 Implementation now provides preemptive Basic Auth enabled by default
- Embedded resources download in CSS has been improved to avoid useless repetitive parsing to find the resources
- An important work on code quality and code coverage with tests has been done since Sonar has been setup on the project. You can see Sonar report here.

UX improvements

- When running a Test, GUI is now more responsive and less impacting on memory usage thanks to a limitation on the number of Sample Results listeners hold and a rework of the way GUI is updated
- HTTP Request GUI has been simplified and provides more place for parameters and body.
- HTTP(S) Test Script Recorder has been simplified and clarified.
- A `replace` feature has been added to Search feature to allow replacement in some elements.

  ReplaceAll does not do replacement on all elements, it does it on:
  - HeaderManager: Replacement in values
  - Http Request: Replacement in Arguments, Path and Host

- View Results Tree now provides a more up to date Browser renderer which requires JavaFX.
- You can now add through a contextual menu think times, this will add think times between samplers and Transaction Controllers of selected node.
- You can now apply a naming policy to children of a Transaction Controller. A default policy exists but you can implement your own through `org.apache.jmeter.gui.action.TreeNodeNamingPolicy` and configuring property `naming_policy.impl`
- Sorting per column has been added to View Results in Table, Summary Report, Aggregate Report and Aggregate Graph elements.

Report/Dashboard improvements

- Statistics have been reorganized to clarify report:
- It is now possible to customize APDEX thresholds per transaction based on regular expression or sample name. The below example will apply different thresholds for samples sample(\\d+), sampleA and scenarioB than default ones (500 and 1500 for satisfied and tolerated thresholds) declared:

      jmeter.reportgenerator.apdex_satisfied_threshold=500
      jmeter.reportgenerator.apdex_tolerated_threshold=1500
      jmeter.reportgenerator.apdex_per_transaction=sample(\\d+):1000|2000;\
          sampleA:3000|4000;\
          scenarioB:5000|6000

Documentation improvements

- PDF Documentations have been migrated and updated to HTML user manual

Incompatible changes

- JMeter requires now at least a Java 8 version to run.
- JMeter logging has been migrated to SLF4J and Log4j 2, this involves changes in the way configuration is done. JMeter now relies on standard Log4j 2 configuration in file `log4j2.xml` See `Logging changes` section below for further details.
- The following jars have been removed after migration from LogKit to SLF4J (see 60589):
  - ApacheJMeter_slf4j_logkit.jar
  - avalon-framework-4.1.4.jar
  - commons-logging-1.2.jar
  - excalibur-logger-1.1.jar
  - logkit-2.0.jar
- The `commons-httpclient-3.1.jar` has been removed after drop of HC3.1 support(see 60727)
- JMeter now sets through `-Djava.security.egd=file:/dev/urandom` the algorithm for secure random
- Process Sampler now returns error code 500 when an error occurs. It previously returned an empty value.
- In `org.apache.jmeter.protocol.http.sampler.HTTPHCAbstractImpl` two protected static fields (`localhost` and `nonProxyHostSuffixSize`) have been renamed to (`LOCALHOST` and `NON_PROXY_HOST_SUFFIX_SIZE`) to follow static fields naming convention
- JMeter now uses by default Oracle Nashorn engine instead of Mozilla Rhino for better performances. This should not have an impact unless you use some advanced features. You can revert back to Rhino by settings property `javascript.use_rhino=true`. You can read this migration guide for more details on Nashorn. See 60672
- 60729
  The Random Variable Config Element now allows minimum==maximum. Previous versions logged an error when minimum==maximum and did not set the configured variable.
- 60730
  The JSON PostProcessor now sets the `_ALL` variable (assuming `Compute concatenation var` was checked) even if the JSON path matches only once. Previous versions did not set the `_ALL` variable in this case.

### Removed elements or functions

- SOAP/XML-RPC Request has been removed as part of 60727. Use HTTP Request element as a replacement. See Building a WebService Test Plan
- 60423
  Drop Monitor Results listener
- Drop deprecated class `org.apache.jmeter.protocol.system.NativeCommand`
- Drop deprecated class `org.apache.jmeter.protocol.http.config.gui.MultipartUrlConfigGui`
- Drop deprecated class `org.apache.jmeter.testelement.TestListener`
- Drop deprecated class `org.apache.jmeter.reporters.FileReporter`
- Drop deprecated class `org.apache.jmeter.protocol.http.modifier.UserSequence`
- Drop deprecated class `org.apache.jmeter.protocol.http.parser.HTMLParseError`
- Drop unused methods `org.apache.jmeter.protocol.http.control.HeaderManager#getSOAPHeader` and `org.apache.jmeter.protocol.http.control.HeaderManager#setSOAPHeader(Object)`
- `org.apache.jmeter.protocol.http.util.Base64Encode` has been deprecated, you can use `java.util.Base64` as a replacement

### Logging changes

JMeter logging has been migrated to SLF4J and Log4j 2. This affects logging configuration and 3rd party plugins (if they use JMeter logging). The following sections describe what changes need to be made.

#### Setting the logging level and log file

The default logging level can be changed on the command-line using the `-L` parameter. Likewise the `-l` parameter can be used to change the name of the log file. However the `log_level` properties no longer work.

The default logging levels and file name are defined in the `log4j2.xml` configuration file in the launch directory (usually `JMETER_HOME/bin`)

If you need to change the level programmatically from Groovy code or Beanshell, you need to do the following:

        import org.apache.logging.log4j.core.config.Configurator;
        &vellip;
        final String loggerName = te.getClass().getName(); // te being a JMeter class
        Configurator.setAllLevels(loggerName, Level.DEBUG);

#### Changes to 3rd party plugin logging

3rd party plugins should migrate their logging code from logkit to slf4j. This is fairly easy and can be done by replacing:

            import org.apache.jorphan.logging.LoggingManager;
            import org.apache.log.Logger;
            &vellip;
            private static final Logger log = LoggingManager.getLoggerForClass();

By:

            import org.slf4j.Logger;
            import org.slf4j.LoggerFactory;
            &vellip;
            private static final Logger log = LoggerFactory.getLogger(YourClassName.class);

Improvements

### HTTP Samplers and Test Script Recorder

- 59934
  Fix race-conditions in CssParser. Based on a patch by Jerome Loisel (loisel.jerome at gmail.com)
- 60543
  HTTP Request / Http Request Defaults UX: Move to advanced panel Timeouts, Implementation, Proxy. Implemented by Philippe Mouawad (p.mouawad at ubik-ingenierie.com) and contributed by Ubik Load Pack (support at ubikloadpack.com)
- 60548
  HTTP Request : Allow Upper Panel to be collapsed
- 57242
  HTTP Authorization is not pre-emptively set with HttpClient4
- 60727
  Drop commons-httpclient-3.1 and related elements. Contributed by Ubik Load Pack (support at ubikloadpack.com)
- 60790
  HTTP(S) Test Script Recorder : Improve information on certificate expiration and have better UX for Start/Stop
- 60888
  HttpRequest : Add option to allow retrial of all requests including NON Idempotent HTTP methods
- 60896
  HTTP(S) Test Script Recorder : Improve UX by reducing number of properties on screen

### Other samplers

- 60740
  Support variable for all JMS messages (bytes, object, &hellip;) and sources (file, folder), based on 241. Contributed by Maxime Chassagneux (maxime.chassagneux at gmail.com).
- 60585
  JMS Publisher and JMS Subscriber : Allow reconnection on error and pause between errors. Based on 240 from by Logan Mauzaize (logan.mauzaize at gmail.com) and Maxime Chassagneux (maxime.chassagneux at gmail.com).
- 259
  - Refactored and reformatted SmtpSampler. Contributed by Graham Russell (graham at ham1.co.uk)

### Controllers

- 60672
  JavaScript function / IfController : use Nashorn engine by default

### Listeners

- 60144
  View Results Tree : Add a more up to date Browser Renderer to replace old Render
- 60542
  View Results Tree : Allow Upper Panel to be collapsed. Contributed by Ubik Load Pack (support at ubikloadpack.com)
- 52962
  Allow sorting by columns for View Results in Table, Summary Report, Aggregate Report and Aggregate Graph. Based on a 245 by Logan Mauzaize (logan.mauzaize at gmail.com) and Maxime Chassagneux (maxime.chassagneux at gmail.com).
- 60590
  BackendListener : Add Influxdb BackendListenerClient implementation to JMeter. Partly based on 246 by Logan Mauzaize (logan.mauzaize at gmail.com) and Maxime Chassagneux (maxime.chassagneux at gmail.com).
- 60591
  BackendListener : Add a time boxed sampling. Based on a 237 by Logan Mauzaize (logan.mauzaize at gmail.com) and Maxime Chassagneux (maxime.chassagneux at gmail.com).
- 60678
  View Results Tree : Text renderer, search should not popup "Text Not Found"
- 60691
  View Results Tree : In Renderers (XPath, JSON Path Tester, RegExp Tester and CSS/JQuery Tester) lower panel is sometimes not visible as upper panel is too big and cannot be resized
- 60687
  Make GUI more responsive when it gets a lot of events.
- 60791
  View Results Tree: Trigger search on Enter key in Search Feature and display red background if no match
- 60822
  ResultCollector does not ensure unique file name entries in files HashMap

### Timers, Assertions, Config, Pre- & Post-Processors

- 60154
  User Parameters GUI: allow rows to be moved up & down in the list. Contributed by Murdecai777 (https://github.com/Murdecai777).
- 60507
  Added '`Or`' Function into ResponseAssertion. Based on a contribution from 忻隆 (298015902 at qq.com)
- 58943
  Create a Better Think Time experience. Contributed by Ubik Load Pack (support at ubikloadpack.com)
- 60602
  XPath Extractor : Add Match No. to allow extraction randomly, by index or all matches
- 60710
  XPath Extractor : When content on which assertion applies is not XML, in View Results Tree the extractor is marked in Red and named SAXParseException. Contributed by Ubik Load Pack (support at ubikloadpack.com)
- 60712
  Response Assertion : Improve Renderer of Patterns
- 59174
  Add a table with static hosts to the DNS Cache Manager. This enables better virtual hosts testing with HttpClient4.

### Functions

- 60883
  288
  - Add `${__escapeXml()}` function. Contributed by Michael Osipov (michaelo at apache.org)

### I18N

- Improve translation "`save_as`" in French. Based on a 252 by Maxime Chassagneux (maxime.chassagneux at gmail.com).
- 60785
  Improvement of Japanese translation. Patch by Kimono (kimono.outfit.am at gmail.com).

### Report / Dashboard

- 60637
  Improve Statistics table design
- 60112
  Report / Dashboard : Add ability to customize APDEX thresholds per Transaction name. Contributed by Stephane Leplus (s.leplus at ubik-ingenierie.com)

### General

- 58164
  Check if file already exists on ResultCollector listener before starting the loadtest
- 54525
  Search Feature : Enhance it with ability to replace
- 60530
  Add API to create JMeter threads while test is running. Based on a contribution by Logan Mauzaize (logan.mauzaize at gmail.com) and Maxime Chassagneux (maxime.chassagneux at gmail.com).
- 60514
  Ability to apply a naming convention on Children of a Transaction Controller. Contributed by Ubik Load Pack (support at ubikloadpack.com)
- 60711
  Improve Delete button behaviour for Assertions / Header Manager / User Parameters GUIs / Exclude, Include in HTTP(S) Test Script Recorder
- 60593
  Switch to G1 GC algorithm
- 60595
  Add a SplashScreen at the start of JMeter GUI. Contributed by Maxime Chassagneux (maxime.chassagneux at gmail.com).
- 55258
  Drop "Close" icon from toolbar and add "New" to menu. Partly based on contribution from Sanduni Kanishka (https://github.com/SanduniKanishka)
- 59995
  Allow user to change font size with two new menu items and use `jmeter.hidpi.scale.factor` for scaling fonts. Contributed by Ubik Load Pack (support at ubikloadpack.com)
- 60654
  Validation Feature : Be able to ignore BackendListener. Contributed by Maxime Chassagneux (maxime.chassagneux at gmail.com).
- 60646
  Workbench : Save it by default
- 60684
  Thread Group: Validate ended prematurely by Scheduler with 0 or very short duration. Contributed by Andrew Burton (andrewburtonatwh at gmail.com).
- 60589
  Migrate LogKit to SLF4J - Drop Avalon, LogKit and Excalibur with backward compatibility for 3rd party modules. Contributed by Woonsan Ko (woonsan at apache.org)
- 60565
  Migrate LogKit to SLF4J - Optimize logging statements. e.g, message format args, throwable args, unnecessary if-enabled-logging in simple ones, etc. Contributed by Woonsan Ko (woonsan at apache.org)
- 60564
  Migrate LogKit to SLF4J - Replace LogKit loggers with SLF4J ones and keep the current LogKit binding solution for backward compatibility with plugins. Contributed by Woonsan Ko (woonsan at apache.org)
- 60664
  Add a UI menu to set log level. Contributed by Woonsan Ko (woonsan at apache.org)
- 276
  - Added some translations for polish locale. Contributed by Bartosz Siewniak (barteksiewniak at gmail.com)
- 60792
  Create a new Help menu item to create a thread dump
- 60813
  JSR223 Test element : Take into account JMeterStopTestNowException, JMeterStopTestException and JMeterStopThreadException
- 60814
  Menu : Add `Open Recent` menu item to make recent files loading more obvious
- 60815
  Drop "Reset GUI" from menu
- 60886
  Build improvements to better enable builds in environments that are behind a proxy. Partly contributed by Michael Osipov (michaelo at apache.org)

Non-functional changes

- 60415
  Drop support for Java 7.
- Updated to dnsjava-2.1.8.jar (from 2.1.7)
- Updated to groovy 2.4.10 (from 2.4.7)
- Updated to httpcore 4.4.6 (from 4.4.5)
- Updated to httpclient 4.5.3 (from 4.5.2)
- Updated to jodd 3.8.1 (from 3.7.1.jar)
- Updated to jsoup-1.10.2 (from 1.10.1)
- Updated to ph-css 5.0.3 (from 4.1.6)
- Updated to ph-commons 8.6.0 (from 6.2.4)
- Updated to slf4j-api 1.7.25 (from 1.7.21)
- Updated to asm 5.2 (from 5.1)
- Updated to rsyntaxtextarea-2.6.1 (from 2.6.0)
- Updated to commons-net-3.6 (from 3.5)
- Updated to json-smart-2.3 (from 2.2.1)
- Updated to accessors-smart-1.2 (from 1.1)
- Converted the old pdf tutorials to xml.
- 255
  - Utilised Java 8 (and 7) features to tidy up code. Contributed by Graham Russell (graham at ham1.co.uk)
- 59435
  JMeterTestCase no longer supports JUnit3

Bug fixes

### HTTP Samplers and Test Script Recorder

- 60531
  HTTP Cookie Manager : changing Implementation does not update Cookie Policy
- 60575
  HTTP GET Requests could have a content-type header without a body.
- 60682
  HTTP Request : Get method may fail on redirect due to Content-Length header being set
- 60643
  HTTP(S) Test Script Recorder doesn't correctly handle restart or start after stop. Contributed by Ubik Load Pack (support at ubikloadpack.com)
- 60652
  HTTP PUT Requests might leak file descriptors.
- 60689
  `httpclient4.validate_after_inactivity` has no impact leading to usage of potentially stale/closed connections
- 60690
  Default values for "httpclient4.validate_after_inactivity" and "httpclient4.time_to_live" which are equal to each other makes validation useless
- 60758
  HTTP(s) Test Script Recorder : Number request may generate duplicate numbers. Contributed by Ubik Load Pack (support at ubikloadpack.com)
- 56939
  Parameters are not passed with OPTIONS HTTP Request
- 60778
  Http Java Impl does not show Authorization header in SampleResult even if it is sent
- 60837
  GET with body, PUT are not retried even if `httpclient4.retrycount` is higher than 0
- 60842
  Trim extracted URLs when loading embedded resources using the Lagarto based HTML Parser.
- 60928
  Http Request : Connection Leak when keepalive is used with Embedded Resources

### Other Samplers

- 603982
  Guard Exception handler of the `JDBCSampler` against null messages
- 55652
  JavaSampler silently resets classname if class can not be found

### Controllers

### Listeners

- 60648
  GraphiteBackendListener can lose some metrics at end of test if test is very short
- 60650
  AbstractBackendListenerClient does not reset UserMetric between runs
- 60759
  View Results Tree : Search feature does not search in URL. Contributed by Ubik Load Pack (support at ubikloadpack.com)
- 60859
  Save Responses to a file : 2 elements with different configuration will overlap

### Timers, Assertions, Config, Pre- & Post-Processors

- 60438
  235
  - Clear old variables before extracting new ones in JSON Extractor. Based on a patch by Qi Chen (qi.chensh at ele.me)
- 60607
  DNS Cache Manager configuration is ignored
- 60729
  The Random Variable Config Element should allow minimum==maximum
- 60730
  The JSON PostProcessor should set the `_ALL` variable even if the JSON path matches only once.
- 60747
  Response Assertion : Add Request Headers to `Field to Test`
- 60763
  XMLAssertion should not leak errors to console
- 60797
  TestAction in pause mode can last beyond configured duration of test

### Functions

- 60819
  Function __fileToString does not honor the documentation contract when file is not found

### I18N

### Report / Dashboard

- 60726
  Report / Dashboard : Top 5 errors by samplers must not take into account the series filtering
- 60919
  Report / Dashboard : Latency Vs Request and Response Time Vs Request are wrong if granularity is different from 1000 (1 second)

### General

- 60775
  NamePanel ctor calls overrideable method
- 60428
  JMeter Graphite Backend Listener throws exception when test ends and `useRegexpForSamplersList` is set to `true`. Based on patch by Liu XP (liu_xp2003 at sina.com)
- 60442
  Fix a typo in `build.xml` (gavin at 16degrees.com.au)
- 60449
  JMeter Tree : Annoying behaviour when node name is empty
- 60494
  Add sonar analysis task to build
- 60501
  Search Feature : Performance issue when regexp is checked
- 60444
  Intermittent failure of `TestHTTPMirrorThread#testSleep()`. Contributed by Thomas Schapitz (ts-nospam12 at online.de)
- 60621
  The "`report-template`" folder is missing from `ApacheJMeter_config-3.1.jar` in maven central
- 60744
  GUI elements are not cleaned up when reused during load of Test Plan which can lead them to be partially initialized with a previous state for a new Test Element
- 60812
  JMeterThread does not honor contract of JMeterStopTestNowException
- 60857
  SaveService omits XML header if _file_encoding is not defined in saveservice.properties
- 60830
  Timestamps in CSV file could be corrupted due to sharing a SimpleDateFormatter across threads

Thanks

We thank all contributors mentioned in bug and improvement sections above:

- Jerome Loisel (loisel.jerome at gmail.com)
- Liu XP (liu_xp2003 at sina.com)
- Qi Chen (qi.chensh at ele.me)
- (gavin at 16degrees.com.au)
- Thomas Schapitz (ts-nospam12 at online.de)
- Murdecai777 (https://github.com/Murdecai777)
- Logan Mauzaize (logan.mauzaize at gmail.com)
- Maxime Chassagneux (maxime.chassagneux at gmail.com)
- 忻隆 (298015902 at qq.com)
- Ubik Load Pack
- Graham Russell (graham at ham1.co.uk)
- Sanduni Kanishka (https://github.com/SanduniKanishka)
- Andrew Burton (andrewburtonatwh at gmail.com)
- Woonsan Ko (woonsan at apache.org)
- Bartosz Siewniak (barteksiewniak at gmail.com)
- Kimono (kimono.outfit.am at gmail.com)
- Michael Osipov (michaelo at apache.org)
- Stephane Leplus (s.leplus at ubik-ingenierie.com)

We also thank bug reporters who helped us improve JMeter.
For this release we want to give special thanks to the following reporters for the clear reports and tests made after our fixes:

- Tuukka Mustonen (tuukka.mustonen at gmail.com) who gave us a lot of useful feedback which helped resolve 60689 and 60690
- Amar Darisa (amar.darisa at gmail.com) who helped us with his feedback on 60682

Apologies if we have omitted anyone else.

Known problems and workarounds

- View Results Tree may freeze rendering large response particularly if this response has no spaces, see 60816. This is due to an identified Java Bug UI stuck when calling JEditorPane.setText() or JTextArea.setText() with long text without space.

- The Once Only controller behaves correctly under a Thread Group or Loop Controller, but otherwise its behaviour is not consistent (or clearly specified).
- The numbers that appear to the left of the green box are the number of active threads / total number of threads, the total number of threads only applies to a locally run test, otherwise it will show `0` (see 55510).
- Note that under some windows systems you may have this WARNING:

      java.util.prefs.WindowsPreferences
      WARNING: Could not open/create prefs root node Software\JavaSoft\Prefs at root 0
      x80000002. Windows RegCreateKeyEx(&hellip;) returned error code 5.

  The fix is to run JMeter as Administrator, it will create the registry key for you, then you can restart JMeter as a normal user and you won't have the warning anymore.
- You may encounter the following error:

      java.security.cert.CertificateException: Certificates does not conform to algorithm constraints

  if you run a HTTPS request on a web site with a SSL certificate (itself or one of SSL certificates in its chain of trust) with a signature algorithm using MD2 (like md2WithRSAEncryption) or with a SSL certificate with a size lower than 1024 bits. This error is related to increased security in Java 8+.
  To allow you to perform your HTTPS request, you can downgrade the security of your Java installation by editing the Java `jdk.certpath.disabledAlgorithms` property. Remove the MD2 value or the constraint on size, depending on your case.
  This property is in this file:

      JAVA_HOME/jre/lib/security/java.security

  See 56357 for details.
- Under Mac OSX Aggregate Graph will show wrong values due to mirroring effect on numbers. This is due to a known Java bug, see Bug JDK-8065373 The fix is to use JDK8_u45 or later.
- View Results Tree may fail to display some HTML code under HTML renderer, see 54586. This is due to a known Java bug which fails to parse "`px`" units in row/col attributes. See Bug JDK-8031109 The fix is to use JDK9 b65 or later (but be aware that Java 9 is not certified yet for JMeter).
- JTable selection with keyboard (SHIFTup/down) is totally unusable with JAVA 7 on Mac OSX. This is due to a known Java bug JDK-8025126 The fix is to use JDK 8 b132 or later.

# Version 3.1

Summary

- New and Noteworthy
- Incompatible changes
- Bug fixes
- Improvements
- Non-functional changes
- Known problems and workarounds
- Thanks

New and Noteworthy
Improve Report/Dashboard

The Dashboard has been improved with 3 new graphs and 1 summary table:

- Connect Time over Time graph :
- Response Time Percentiles Over Time (successful responses) graph :
- Response Time Overview graph :
- Top 5 errors by Sampler table :
- More details on errors in Errors table
- Average response time added to Statistics table :
- Active Threads table now stacks threads :

New Metrics

A new `sent_bytes` metric has been introduced which reports the bytes sent to server.
Another metric `connect_time` has been enabled by default in this version

Handling Big responses

JMeter is now able to handle in terms of metrics responses bigger than 2GB, limit has been increased to 9223372 TB.
To handle such big responses, it can also now truncate part of the response to avoid overflooding memory. See `httpsampler.max_bytes_to_store_per_request` property.

New `__groovy` function

Introduce a new function `__groovy` that enables Groovy functions. This can be handy, as JavaScript can be quite slow (same for BeanShell), when used in highly concurrent test plans.

Use Groovy as default for JSR-223 elements

Groovy is now set as the default language for JSR-223 elements. If you want to use another of the supported language, you have to make an explicit choice.

By default `Cache compiled script if available` is not checked by default although we advise you to check it and ensure you don't use `${varName}` syntax to access JMeter variables but `vars.get("varName")` instead.

Formatted HTML source view in Results Tree View

The HTML source code in the Results Tree View can now be viewed formatted. This is extremely useful, if the code of the webpage has been stripped of all superfluous whitespace.

New formatted HTML source view
Ability to update all timers in Test plan with a new property

A new property `timer.factor=1.0f` has been introduced which allows you to multiply pause times computed by Gaussian, Uniform and Poisson Timers by it. This allows you to update Think Times from one place and let you gain productivity.

Core improvements

- Various GUI and UX fixes
- Memory usage improvements
- JDBC Request is now able to return Blob/Clob and computes latency and connect time
- CSS Parsing introduced in 3.0 has been optimized by introduction of a parsing cache
- HTTP Request is now able to handle body in GET request, this is useful for Elastic Search requests for example.

Documentation improvements

- Documentation review and improvements for easier startup
- New properties reference documentation section

Incompatible changes

- A cache for CSS Parsing of URLs has been introduced in this version, it is enabled by default. It is controlled by property `css.parser.cache.size`. It can be disabled by setting its value to `0`. See 59885
- ThroughputController defaults have changed. Now defaults are Percent Executions which is global and no more per user. See 60023
- Since version 3.1, HTML report ignores empty `Transaction Controller` (possibly generated by `If Controller` or `Throughput Controller`) when computing metrics. This provides more accurate metrics
- Since version 3.1, Summariser ignores SampleResults generated by `Transaction Controller` when computing the live statistics, see 60109
- Since version 3.1, when using Stripped modes (by default `StrippedBatch` is used), response will be stripped also for failing SampleResults, you can revert this to previous behaviour by setting `sample_sender_strip_also_on_error=false` in `user.properties`, see 60137
- Since version 3.1, `jmeter.save.saveservice.connect_time` property value is `true`, meaning CSV file for results will contain an additional column containing connection time, see 60106
- Since version 3.1, Random Timer subclasses (Gaussian Random Timer, Uniform Random Timer and Poisson Random Timer) implement interface `org.apache.jmeter.timers.ModifiableTimer`
- Since version 3.1, if you don't select any language in JSR223 Test Elements, Apache Groovy language will be used. See 59945
- Since version 3.1, CSV DataSet now trims variable names to avoid issues due to spaces between variables names when configuring CSV DataSet. This should not have any impact for you unless you use space at the beginning or end of your variable names. See 60221
- Since version 3.1, HTTP Request is able when using HttpClient4 (default) implementation to handle responses bigger than `2147483647` Bytes, that is 2GB. To allow this two properties have been introduced:
  - `httpsampler.max_bytes_to_store_per_request` (defaults to 10MB) will control what is held in memory. By default JMeter will only keep in memory the first 10MB of a response. If you have responses larger than this value and use assertions that are after the first 10MB, then you must increase this value
  - `httpsampler.max_buffer_size` will control the buffer used to read the data. Previously JMeter used a buffer equal to Content-Length header which could lead to failures and make JMeter less resistant to faulty applications, but note this may impact response times and give slightly different results than previous versions if your application returned a Content-Length header higher than current default value (65KB)
  See 53039

### Deprecated and removed elements or functions

These elements do not appear anymore in the menu, if you need them modify `not_in_menu` property. The JMeter team advises not to use them anymore and migrate to their replacement.

- 60222
  Remove deprecated elements Distribution Graph, Spline Visualizer
- 60224
  Deprecate `Monitor Results` listener. It will be dropped in next version.
- 60323
  Deprecate BSF Elements (Use JSR223 Elements instead). They will probably be dropped in N+2 version. The following elements are deprecated:
  - `BSF Sampler`
  - `BSF Listener`
  - `BSF Assertion`
  - `BSF Timer`
  - `BSF PreProcessor`
  - `BSF PostProcessor`
- 60225
  Drop deprecated `__jexl` function, jexl support in BSF and dependency on `commons-jexl-1.1.jar`. This function can be easily replaced with `__jexl3` function
- 60268
  Drop org.apache.jmeter.gui.action.Analyze and deprecate org.apache.jmeter.reporters.FileReporter (will be removed in next version)

Improvements

### HTTP Samplers and Test Script Recorder

- 59882
  Reduce memory allocations for better throughput. Contributed by Benoit Wiart (b.wiart at ubik-ingenierie.com) through 217 and 228
- 59885
  Optimize css parsing for embedded resources download by introducing a cache. Contributed by Benoit Wiart (b.wiart at ubik-ingenierie.com) through 219
- 60092
  View Result Tree: Add shortened version of the PUT body to sampler result.
- 60229
  Add a new metric : sent_bytes. Implemented by Philippe Mouawad (p.mouawad at ubik-ingenierie.com) and contributed by Ubik Load Pack (support at ubikloadpack.com)
- 53039
  HTTP Request : Be able to handle responses which size exceeds `2147483647` bytes (that is 2GB)
- 60265
  HTTP Request : In Files Upload Tab you cannot resize columns
- 60318
  Ignore CSS warnings when parsing with ph-css library.
- 60358
  Http Request : Allow sending Body Data for HTTP GET request

### Other samplers

- 211
  Differentiate the timing for JDBC Sampler. Use latency and connect time. Contributed by Thomas Peyrard (thomas.peyrard at murex.com)
- 59620
  Fix button action in "JMS Publisher &rarr; Random File from folder specified below" to allow to select a directory
- 60066
  Handle CLOBs and BLOBs and limit them if necessary when storing them in result sampler.

### Controllers

- 59351
  Improve log/error/message for IncludeController. Partly contributed by Antonio Gomes Rodrigues (ra0077 at gmail.com)
- 60023
  ThroughputController : Make "Percent Executions" and global the default values. Contributed by Ubik Load Pack (support at ubikloadpack.com)
- 60082
  Validation mode : Be able to force Throughput Controller to run as if it was set to 100%
- 59349
  Trim spaces in input filename in IncludeController.
- 60081
  Interleave Controller : Add an option to alternate across threads

### Listeners

- 59953
  GraphiteBackendListener : Add Average metric. Partly contributed by Maxime Chassagneux (maxime.chassagneux at gmail.com)
- 59975
  View Results Tree : Text renderer annoyingly scrolls down when content is bulky. Contributed by Ubik Load Pack (support at ubikloadpack.com)
- 60109
  Summariser : Make it ignore TC generated SampleResult in its summary computations
- 59948
  Add a formatted and sane HTML source code render to View Results Tree
- 60252
  Add sent kbytes/s to Aggregate Report and Summary report
- 60267
  UX : In View Results Tree it should be possible to close the Configure popup by typing escape. Contributed by Ubik Load Pack (support at ubikloadpack.com)

### Timers, Assertions, Config, Pre- & Post-Processors

- 59845
  Log messages about JSON Path mismatches at `debug` level instead of `error`.
- 212
  Allow multiple selection and delete in HTTP Authorization Manager. Based on a patch by Benoit Wiart (b.wiart at ubik-ingenierie.com)
- 59816
  213
  Allow multiple selection and delete in HTTP Header Manager. Based on a patch by Benoit Wiart (b.wiart at ubik-ingenierie.com)
- 59967
  CSS/JQuery Extractor : Allow empty default value. Contributed by Ubik Load Pack (support at ubikloadpack.com)
- 59974
  Response Assertion : Add button "`Add from clipboard`". Contributed by Ubik Load Pack (support at ubikloadpack.com)
- 60050
  CSV Data Set : Make it clear in the logs when a thread will exit due to this configuration
- 59962
  Cache Manager does not update expires date when response code is `304`.
- 60018
  Timer : Add a factor to apply on pauses. Partly based on a patch by Ubik Load Pack (support at ubikloadpack.com)
- 60203
  Use more available space for textarea in XPath Assertion.
- 60220
  Rename JSON Path Post Processor to JSON Extractor
- 60221
  CSV DataSet : trim variable names
- 59329
  Trim spaces in input filename in CSVDataSet.

### Functions

- 59963
  New function `__RandomFromMultipleVars`: Ability to compute a random value from values of one or more variables. Contributed by Ubik Load Pack (support at ubikloadpack.com)
- 59991
  New function `__groovy` to evaluate Groovy Script. Contributed by Ubik Load Pack (support at ubikloadpack.com)

### I18N

- 214
  Add spanish translation for delayed starting of threads. Contributed by Asier Lostalé (asier.lostale at openbravo.com).
- 60348
  Change chinese translation for `Save as`. Contributed by XMeter (support at xmeter.net).

### Report / Dashboard

- 59954
  Web Report/Dashboard : Add average metric
- 59956
  Web Report / Dashboard : Add ability to generate a graph for a range of data
- 60065
  Report / Dashboard : Improve Dashboard Error Summary by adding response message to "Type of error". Contributed by Ubik Load Pack (support at ubikloadpack.com)
- 60079
  Report / Dashboard : Add a new "Response Time Overview" graph
- 60080
  Report / Dashboard : Add a new "Connect Time Over Time " graph. Contributed by Ubik Load Pack (support at ubikloadpack.com)
- 60091
  Report / Dashboard : Have a new report containing min/max and percentiles graphs.
- 60108
  Report / Dashboard : In Requests Summary rounding is too aggressive
- 60098
  Report / Dashboard : Reduce default value for "`jmeter.reportgenerator.statistic_window`" to reduce memory impact
- 60115
  Add date format property for start/end date filter into Report generator
- 60171
  Report / Dashboard : Active Threads Over Time should stack lines to give the total amount of threads running
- 60250
  Report / Dashboard : Need to Add Sent KB/s in Statistics Report of HTML Dashboard
- 60287
  Report / Dashboard : Have a new Top5 Errors by sampler table in Dashboard. Implemented by Philippe Mouawad (p.mouawad at ubik-ingenierie.com) and contributed by Ubik Load Pack (support at ubikloadpack.com)

### General

- 59803
  Use `isValid()` method from JDBC driver, if no `validationQuery` is given in JDBC Connection Configuration.
- 57493
  Create a documentation page for properties
- 59924
  The log level of XXX package is set to `DEBUG` if `log_level.XXXX` property value contains spaces, same for `__log` function
- 59777
  Extract SLF4J binding into its own jar and make it a JMeter lib.

  If you get a warning about multiple SLF4J bindings on startup. Remove either the Apache JMeter provided binding `lib/ApacheJMeter_slf4j_logkit.jar`, or all of the other reported bindings. For more information you can have a look at SLF4Js own info page.

- 60085
  Remove cache for prepared statements, as it didn't work with the current JDBC pool implementation and current JDBC drivers should support caching of prepared statements themselves.
- 60137
  In Distributed testing when using StrippedXXXX modes strip response also on error
- 60106
  Settings defaults : Switch "`jmeter.save.saveservice.connect_time`" to true (after 3.0)
- 229
  tiny memory allocation improvements. Contributed by Benoit Wiart (b.wiart at ubik-ingenierie.com)
- 59945
  For all JSR223 elements, if script language has not been chosen on the UI, the script will be interpreted as a groovy script.
- 60266
  Usability/ UX : It should not be possible to close/exit/Revert/Load/Load a recent project or create from template a JMeter plan or open a new one if a test is running
- 57305
  Remove dependency of `ProxyControl` on `GuiPackage`. Based on patches by jarek102 (jarek102 at gmail.com) and Wyatt Epp (wyatt.epp at gmail.com)

Non-functional changes

- Updated to jsoup-1.10.1 (from 1.8.3)
- Updated to ph-css 4.1.6 (from 4.1.4)
- Updated to tika-core and tika-parsers 1.14 (from 1.12)
- Updated to commons-io 2.5 (from 2.4)
- Updated to commons-lang3 3.5 (from 3.4)
- Updated to commons-net 3.5 (from 3.4)
- Updated to groovy 2.4.7 (from 2.4.6)
- Updated to httpcore 4.4.5 (from 4.4.4)
- Updated to slf4j-api 1.7.21 (from 1.7.13)
- Updated to rsyntaxtextarea-2.6.0 (from 2.5.8)
- Updated to xstream 1.4.9 (from 1.4.8)
- Updated to jodd 3.7.1 (from 3.6.7.jar)
- Updated to xmlgraphics-commons 2.1 (from 2.0.1)
- 215
  Reduce duplicated code by using the newly added method `GuiUtils#cancelEditing`. Contributed by Benoit Wiart (b.wiart at ubik-ingenierie.com)
- 218
  Misc cleanup. Contributed by Benoit Wiart (b.wiart at ubik-ingenierie.com)
- 216
  Re-use pattern when possible. Contributed by Benoit Wiart (b.wiart at ubik-ingenierie.com)
- 60364
  Document Test Coverage. Contributed by Thomas Schapitz (ts-nospam12 at online.de)

Bug fixes

### HTTP Samplers and Test Script Recorder

- 58888
  HTTP(S) Test Script Recorder (ProxyControl) does not add TestElement's returned by `SamplerCreator#createChildren()`
- 59902
  Https handshake failure when setting `httpclient.socket.https.cps` property
- 60084
  JMeter 3.0 embedded resource URL is silently encoded
- 60376
  Http Test Script Recorder : If deflate is used by server then recording may break application

### Other Samplers

- 59113
  JDBC Connection Configuration : Transaction Isolation level not correctly set if constant used instead of numerical

### Controllers

- 60361
  ModuleController : If a Test plan contains a Module Controller which references an unexistant Controller, JMeter in GUI mode will not stop

### Listeners

- 59712
  Display original query in RequestView when decoding fails. Based on a patch by Teemu Vesala (teemu.vesala at qentinel.com)
- 60278
  Since 2.13 (and 57514), Aggregate Graph, Summary Report and Aggregate Report lost precision in the Error, Rate and Bandwidth values saved in the saved file csv
- 60360
  View Result Tree : Request Tab does not show body of a DELETE request

### Timers, Assertions, Config, Pre- & Post-Processors

- 59964
  JSR223 Test Element : Cache compiled script if available is not correctly reset. Contributed by Ubik Load Pack (support at ubikloadpack.com)
- 59609
  Format extracted JSON Objects in JSON Post Processor correctly as JSON.
- 60332
  View Results Tree : With Windows LAF, JSON Extractor does not show JSON Path Expression and Result panel

### Functions

### I18N

### General

- 59400
  Get rid of UnmarshalException on stopping when `-X` option is used.
- 59607
  JMeter crashes when reading large test plan (greater than 2GB). Based on fix by Felix Draxler (felix.draxler at sap.com)
- 59621
  Error count in report dashboard is one off.
- 59657
  Only set font in JSyntaxTextArea, when property `jsyntaxtextarea.font.family` is set.
- 59720
  Batch test file comparisons fail on Windows as XML files are generated as EOL=LF
- Code cleanups. Patches by Graham Russell (graham at ham1.co.uk)
- 59722
  Use StandardCharsets to reduce the possibility of misspelling Charset names.
- 59723
  Use `jmeter.properties` for testing whenever possible
- 59726
  Unit test to check that CSV header text and sample format don't change unexpectedly
- 59889
  Change encoding to UTF-8 in reports for dashboard.
- 60053
  In Non GUI mode, a Stacktrace is shown at end of test while report is being generated
- 60049
  When using Timers with high delays or Constant Throughput Timer with low throughput, Scheduler may take a lot of time to exit, same for Shutdown test
- 60089
  Report / Dashboard : Bytes throughput Over Time has reversed Sent and Received bytes. Contributed by Ubik Load Pack (support at ubikloadpack.com)
- 60090
  Report / Dashboard : Empty Transaction Controller should not count in metrics
- 60103
  Report / Dashboard : Requests summary includes Transaction Controller leading to wrong percentage
- 60105
  Report / Dashboard : Report requires Transaction Controller "`generate parent sample`" option to be checked, fix related issues
- 60107
  Report / Dashboard : In StatisticSummary, TransactionController SampleResult makes Total line wrong
- 60110
  Report / Dashboard : In Response Time Percentiles, slider is useless
- 60135
  Report / Dashboard : Active Threads Over Time should be in OverTime section
- 60125
  Report / Dashboard : Dashboard cannot be generated if the default delimiter is `\t`. Based on a report from Tamas Szabadi (tamas.szabadi at rightside.co)
- 59439
  Report / Dashboard : AbstractOverTimeGraphConsumer.createGroupInfos() should be abstract
- 59918
  Ant generated HTML report is broken (extras folder)
- 60295
  JSON Extractor doesn't index array elements when only one element is found. Based on a patch by Roberto Braga (roberto.braga at sociale.it)
- 60299
  Thread Group with Scheduler : Weird behaviour when End-Time is in the past

Thanks

We thank all contributors mentioned in bug and improvement sections above:

- Felix Draxler (felix.draxler at sap.com)
- Antonio Gomes Rodrigues (ra0077 at gmail.com)
- Graham Russell (graham at ham1.co.uk)
- Teemu Vesala (teemu.vesala at qentinel.com)
- Asier Lostalé (asier.lostale at openbravo.com)
- Thomas Peyrard (thomas.peyrard at murex.com)
- Benoit Wiart (b.wiart at ubik-ingenierie.com)
- Maxime Chassagneux (maxime.chassagneux at gmail.com)
- Ubik Load Pack
- Tamas Szabadi (tamas.szabadi at rightside.co)
- Roberto Braga (roberto.braga at soziale.it)
- jarek102 at gmail.com
- Wyatt Epp (wyatt.epp at gmail.com)
- Thomas Schapitz (ts-nospam12 at online.de)

We also thank bug reporters who helped us improve JMeter.
For this release we want to give special thanks to the following reporters for the clear reports and tests made after our fixes:

Apologies if we have omitted anyone else.

Known problems and workarounds

- The Once Only controller behaves correctly under a Thread Group or Loop Controller, but otherwise its behaviour is not consistent (or clearly specified).
- The numbers that appear to the left of the green box are the number of active threads / total number of threads, the total number of threads only applies to a locally run test, otherwise it will show `0` (see 55510).
- Note that there is a bug in Java on some Linux systems that manifests itself as the following error when running the test cases or JMeter itself:

       [java] WARNING: Couldn't flush user prefs:
       java.util.prefs.BackingStoreException:
       java.lang.IllegalArgumentException: Not supported: indent-number

  This does not affect JMeter operation. This issue is fixed since Java 7b05.
- Note that under some windows systems you may have this WARNING:

      java.util.prefs.WindowsPreferences
      WARNING: Could not open/create prefs root node Software\JavaSoft\Prefs at root 0
      x80000002. Windows RegCreateKeyEx(&hellip;) returned error code 5.

  The fix is to run JMeter as Administrator, it will create the registry key for you, then you can restart JMeter as a normal user and you won't have the warning anymore.
- With Oracle Java 7 and Mac Book Pro Retina Display, the JMeter GUI may look blurry. This is a known Java bug, see Bug JDK-8000629. A workaround is to use a Java 7 update 40 runtime which fixes this issue.
- You may encounter the following error:

      java.security.cert.CertificateException: Certificates does not conform to algorithm constraints

  if you run a HTTPS request on a web site with a SSL certificate (itself or one of SSL certificates in its chain of trust) with a signature algorithm using MD2 (like md2WithRSAEncryption) or with a SSL certificate with a size lower than 1024 bits. This error is related to increased security in Java 7 version u16 (MD2) and version u40 (Certificate size lower than 1024 bits), and Java 8 too.
  To allow you to perform your HTTPS request, you can downgrade the security of your Java installation by editing the Java `jdk.certpath.disabledAlgorithms` property. Remove the MD2 value or the constraint on size, depending on your case.
  This property is in this file:

      JAVA_HOME/jre/lib/security/java.security

  See 56357 for details.
- Under Mac OSX Aggregate Graph will show wrong values due to mirroring effect on numbers. This is due to a known Java bug, see Bug JDK-8065373 The fix is to use JDK7_u79, JDK8_u45 or later.
- View Results Tree may fail to display some HTML code under HTML renderer, see 54586. This is due to a known Java bug which fails to parse "`px`" units in row/col attributes. See Bug JDK-8031109 The fix is to use JDK9 b65 or later.
- JTable selection with keyboard (SHIFTup/down) is totally unusable with JAVA 7 on Mac OSX. This is due to a known Java bug JDK-8025126 The fix is to use JDK 8 b132 or later.

# Version 3.0

Summary

- New and Noteworthy
- Known bugs
- Incompatible changes
- Bug fixes
- Improvements
- Non-functional changes
- Thanks

New and Noteworthy
Test plan creation and debugging improvements
New Search Feature in View Results Tree to allow searching for text / regexp in Request/Responses/Headers/Cookies/&hellip; This will ease correlation and Test plans creation
New JSON Post Processor to better extract data from JSON content using user friendly JSON-PATH syntax

JSON is now a first class citizen in JMeter with the introduction of a new JSONPath post processor. This post processor is very similar to Regular Expression Post Processor but is well suited for JSON code. It is based on Jayway JSON Path library

New validation feature, in one click run a selection of Thread Groups with `1` user, no pause and `1` iteration
JSR223 Test Elements do not require a Cache Compilation Key anymore

Just check `Cache compiled script if available` checkbox and the elements (Pre-Processor, Post-Processor, Assertions, Listeners, &hellip;) will pre-compile the script and cache the compiled code if the underlying language supports it

Nashorn can now be used as Javascript engine providing better performance and easier usage

To enable Nashorn, you need to set in `user.properties`:

    javascript.use_rhino=false

Nashorn can be used with Java 8 in the following elements:

- IfController
- JSR223 Test elements with `javascript` language selected
- `__javaScript` function

Jexl3 has been integrated. It provides new scripting features and much better documentation

JEXL3 can now be used thanks to a new function `__jexl3`. JEXL is a language very similar to JSTL.

Simplified HTTP Request UI

A new "`Advanced`" tab has been added to HTTP Request to simplify configuration. The file upload feature has been moved into a dedicated tab. This increases the space available for parameters in UI and simplifies the UX.

HTTP Request Defaults improvements

You can now configure Source Address (IP Spoofing like feature) and "`Save response as MD5 hash`" in Advanced Tab

Reporting improvements
New Reporting Feature generating dynamic Graphs in HTML pages (APDEX, Summary report and Graphs)

A dynamic HTML report can now be generated either at the end of a load test or from a result file whenever you want. See Generating dashboard for more details. This report provides the following metrics:

- APDEX (Application Performance Index) table that computes the APDEX based on configurable values for tolerated and satisfied thresholds
- A request summary graph showing the Success and failed transaction percentage:
- A Statistics table providing in one table a summary of all metrics per transaction including 3 configurable percentiles :
- An error table providing a summary of all errors and their proportion in the total requests :
- Zoomable chart where you can check/uncheck every transaction to show/hide it for:
  - Response times Over Time :
  - Bytes throughput Over Time :
  - Latencies Over Time :
  - Hits per second :
  - Response codes per second :
  - Transactions per second :
  - Response Time vs Request per second :
  - Latency vs Request per second :
  - Response times percentiles :
  - Active Threads Over Time :
  - Times vs Threads :
  - Response Time Distribution :

GraphiteBackendListener has a new Server Hits metric
Summariser displays a more readable duration

Now duration are display in the format `hours:minutes:seconds`

    Generate Summary Results +      1 in 00:00:01 =    1.7/s Avg:     1 Min:     1 Max:     1 Err:     0 (0.00%) Active: 1 Started: 1 Finished: 0
    Generate Summary Results +    138 in 00:00:09 =   16.2/s Avg:     0 Min:     0 Max:     1 Err:     0 (0.00%) Active: 9 Started: 9 Finished: 0
    Generate Summary Results =    139 in 00:00:09 =   15.3/s Avg:     0 Min:     0 Max:     1 Err:     0 (0.00%)
    Generate Summary Results +    467 in 00:00:10 =   47.0/s Avg:     0 Min:     0 Max:     1 Err:     0 (0.00%) Active: 19 Started: 19 Finished: 0
    Generate Summary Results =    606 in 00:00:19 =   31.9/s Avg:     0 Min:     0 Max:     1 Err:     0 (0.00%)
    &vellip;
    Generate Summary Results +   1662 in 00:00:10 =  166.1/s Avg:     0 Min:     0 Max:     1 Err:     0 (0.00%) Active: 50 Started: 50 Finished: 0
    Generate Summary Results =  28932 in 00:03:19 =  145.4/s Avg:     0 Min:     0 Max:     1 Err:     0 (0.00%)
    Generate Summary Results +   1664 in 00:00:10 =  166.4/s Avg:     0 Min:     0 Max:     1 Err:     0 (0.00%) Active: 50 Started: 50 Finished: 0
    Generate Summary Results =  30596 in 00:03:29 =  146.4/s Avg:     0 Min:     0 Max:     1 Err:     0 (0.00%)
    Generate Summary Results +   1661 in 00:00:10 =  166.1/s Avg:     0 Min:     0 Max:     1 Err:     0 (0.00%) Active: 50 Started: 50 Finished: 0
    Generate Summary Results =  32257 in 00:03:39 =  147.3/s Avg:     0 Min:     0 Max:     1 Err:     0 (0.00%)

BackendListener now allows you to define sampler list as a regular expression

You can now use a regular expression to select the samplers you want to filter. Use parameter: `useRegexpForSamplersList=true` and put a regex in parameter `samplersList`

Protocols and Load Testing improvements
Migration to HttpClient 4.5.2 has been started. Although not completely finished, it improves many areas in JMeter

Migration to HttpClient 4.5.2 improves the following fields of JMeter:

- Support of recent RFC like HTTP State Management Mechanism RFC-6265 for Cookies, you should use now `HC4CookieHandler` in HTTP Cookie Manager component and select `standard` Cookie policy
- Server Name Indication (SNI) support for HttpClient4 implementation
- Improved and better performing validation mechanism for Stale connections and Keep-Alive management, see properties `httpclient4.validate_after_inactivity` and `httpclient4.time_to_live`
- Many bug fixes since previous version 4.2.6 used in JMeter 2.13, see HttpClient 4.5.X release notes
- Better support of HTTP RFC 2616 / RFC 7230 and fixes to issues with `deflate` compression management

Parallel Downloads is now realistic and scales much better:

- Parsing of CSS imported files (through `@import`) or embedded resources (background, images, &hellip;)
- Lazy initialization of SSL context: For 15 Threads 138% more sampling in 5 minutes for HTTP only tests. Gain increases as number of threads increases
- Rework of Connection management for Parallel Download: This better simulates current browser behaviour and improves throughput. For 15 Threads 135% extra samples in 5 minutes.
- Reuse of Threads used for Parallel downloads through a ThreadPool: This improves throughput and increases JMeter scalability for such tests
- Total of 750% more throughput found on test with 15 threads, the more threads you have the more the gain
- You can now compute and store just the MD5 of embedded resources instead of storing the entire response, this can be done by setting the property `httpsampler.embedded_resources_use_md5=true`

Introduction of Sample Timeout feature

This new Pre-Processor allows you to apply a Timeout on the elements that are in its scope. In the screenshot below the 10 second timeout applies to the `Debug Sampler` and `HTTP Request` elements.

JDBC request now uses DBCP2 pool

JDBC Request and JDBC Connection Configuration have been updated to replace old Excalibur Pool by Apache Commons DBCP2 pool. As a consequence properties have been migrated to equivalent when available and UI has been updated. Note that unlike Excalibur, Commons DBCP uses the validation query when creating the pool. So make sure the query is valid. The default query suits many databases, but not all - for example Oracle requires '`SELECT 1 FROM DUAL`' or similar.

UX Improvements:
Better display in HiDPI screens

See JMeter with a HiDPI screen on Linux or Windows in Hints and Tips section in user manual

New Icon look and Logo

JMeter has a new Logo created by Felix Schumacher.
Icons have also been refreshed to give a more modern style and make them more meaningful

Lots of fixes of annoying little bugs

Around 40 UI fixes have been made to either fix buggy, confusing behaviour or simplify usage by not allowing incompatible options to be selected

Improved Thread Group UI and related actions (`Start`, `Start No Timers`, `Validate`)

Creating and testing a Test Plan before Load Test has been much simplified by allowing you to only start a selection of Thread Group, start them without applying Timers (thus gaining time) or start them using a new Validation mode. This validation mode allows you to start a Thread Group (without modifying it) with 1 thread, 1 iteration and without applying timers. This validation mode can be customized.

New shortcuts

- Add most used elements ( Ctrl 0 &hellip; Ctrl 9 ), configurable through `gui.quick_XXX` properties
- Shortcuts to expand nodes

Core improvements
Configuration simplification with better defaults

Default values for many properties have been modified to make JMeter configuration optimal Out of the box. Read "Incompatible changes" section for more details.

Apache Groovy bundled with JMeter

Apache Groovy, the well-known JVM scripting language, is now bundled with Apache JMeter in lib folder. This allows you to use it immediately through JSR223 Elements by selecting the Groovy language.

Superfluous and old properties removed

Old properties that existed to maintain backward compatibility or to offer some superfluous customization have been removed. Read "Incompatible changes" section to see which properties have been removed.

Code and documentation improvements

- Migration to Java7 source code and use of its syntactic sugar
- Major code cleanups
- Full review of documentation and improvement both in content and presentation

Improvements to unit tests

- Migration of many tests to JUnit 4
- Better management of Headless tests
- More Unit Tests

Dependencies refresh

Deprecated Libraries dropped or replaced by up to date ones:

- Excalibur replaced by commons-dbcp
- htmllexer, htmlparser removed
- soap removed
- jdom removed

Slf4j can now be used within Plugins and core code

You can now use SLF4J logging wrapper in your custom plugins or `org.apache.jmeter.protocol.java.sampler.AbstractJavaSamplerClient` subclasses.

Incompatible changes

- Since version 3.0, Groovy-2.4.6 is bundled with JMeter (`lib` folder), ensure you remove old version or referenced versions through properties `search_paths` or `user.classpath`
- Since version 3.0, `jmeter.save.saveservice.assertion_results_failure_message` property value is true, meaning CSV file for results will contain an additional column containing assertion result response message, see 58978
- Since version 3.0, `jmeter.save.saveservice.print_field_names` property value is true, meaning CSV file for results will contain field names as first line in CSV, see 58991
- Since version 3.0, `jmeter.save.saveservice.idle_time` property value is true, meaning CSV/XML result files will contain an additional column containing idle time between samplers, see 57182
- In RandomTimer class, protected instance `timer` field has been replaced by `getTimer()` protected method, this is related to 58100. This may impact 3rd party plugins.
- Since version 3.0, you can use Nashorn Engine (default javascript engine is Rhino) under Java8 for Elements that use Javascript Engine (`__javaScript`, `IfController`). If you want to use it, use property `javascript.use_rhino=false`, see 58406.

  Note: in a future version, we will switch to Nashorn by default. Users are encouraged to report any issue related to using Nashorn instead of Rhino.

- Since version 3.0, JMS Publisher will reload contents of file if Message source is "`From File`" and the "`Filename`" field changes (e.g. if it uses a variable that has changed)
- `org.apache.jmeter.gui.util.ButtonPanel` has been removed, if you use it in your 3rd party plugin or custom development ensure you update your code. See 58687
- Property `jmeterthread.startearlier` has been removed. See 58726
- Property `jmeterengine.startlistenerslater` has been removed. See 58728
- Property `jmeterthread.reversePostProcessors` has been removed. See 58728
- Property `jmeter.toolbar.display` has been removed, the toolbar is now always displayed. See 59236
- Property `jmeter.errorscounter.display` has been removed, the errors/warnings counter is now always displayed. See 59236
- Property `xml.parser` has been removed, it is not used anymore as `org.apache.jmeter.util.JMeterUtils#getXMLParser` has been deprecated and is not used either. See 59236
- Summariser listener now shows the duration in the format `HH:mm:ss` (Hour:Minute:Second), it previously showed the duration in seconds. See 58776
- `org.apache.jmeter.protocol.http.visualizers.RequestViewHTTP.getQueryMap` signature has changed, if you use it ensure you update your code. See 58845
- JMS Subscriber will consider a sample to be an error if the number of received messages is not equal to expected number of messages. It previously considered a sample OK if at least 1 message was received. See 58980
- Since version 3.0, HTTP(S) Test Script recorder defaults to using port `8888` (as configured when using Recording Template). See 59006
- Since version 3.0, the parser for embedded resources (replaced since 2.10 by Lagarto based implementation) which relied on the htmlparser library (HtmlParserHTMLParser) has been dropped along with its dependencies.
- Since version 3.0, support for reading old Avalon format JTL (result) files has been removed, see 59064
- Since version 3.0, the default property value for `http.java.sampler.retries` has been changed to `0` (no retry by default) to align it with the behaviour of HttpClient4.

  Note also that its meaning has changed: before 3.0, `http.java.sampler.retries=1` meant `No Retry` (i.e. total tries = 1), since 3.0 `http.java.sampler.retries=1` means `1` retry. (Note: this only applies to the Java HTTP Sampler)

  See 59103
- Since 3.0, the following deprecated classes have been dropped
  - org.apache.jmeter.protocol.http.modifier.UserParameterXMLContentHandler
  - org.apache.jmeter.protocol.http.modifier.UserParameterXMLErrorHandler
  - org.apache.jmeter.protocol.http.modifier.UserParameterXMLParser
- `httpsampler.await_termination_timeout` has been replaced by `httpsampler.parallel_download_thread_keepalive_inseconds` which is now the keep alive time for the parallel download threads (in seconds).
- JDBC Request has been updated to use commons-dbcp2, since then the behaviour is slightly different, ensure you have a correct "Validation Query" for your database. See 58786
- The following jars have been removed:
  - excalibur-datasource-2.1.jar (see 59156)
  - excalibur-instrument-1.0.jar (see 58786)
  - excalibur-pool-api-2.1.jar (see 58786)
  - excalibur-pool-impl-2.1.jar (see 58786)
  - excalibur-pool-instrumented-2.1.jar (see 58786)
  - htmllexer-2.1.jar (see 59037)
  - htmlparser-2.1.jar (see 59037)
  - soap-2.3.1.jar
  - jdom-1.1.3.jar (see 59156)
- Maximum number of redirects allowed by JMeter is now 20, it was previously 5. This can be changed with the property `httpsampler.max_redirects`. See 59382

### Deprecated and removed elements

- MongoDB elements (MongoDB Source Config, MongoDB Script) have been deprecated and will be removed in the next version of JMeter. They do not appear anymore in the menu, if you need them modify `not_in_menu` property. The JMeter team advises not to use them anymore. See 58772
- WebService(SOAP) Request and HTML Parameter Mask which were deprecated in 2.13 version, have now been removed following our deprecation strategy. Classes and properties which were only used by those elements have been dropped:
  - `org.apache.jmeter.protocol.http.util.DOMPool`
  - `org.apache.jmeter.protocol.http.util.WSDLException`
  - `org.apache.jmeter.protocol.http.util.WSDLHelper`
  - Property `soap.document_cache`
  - JAR soap-2.3.1 has been also removed
- `__jexl` function (i.e. JEXL 1) has been deprecated and will be removed in next version. See 58903
- Spline Visualizer listener and Distribution Graph listener have been deprecated and will be removed in the next version of JMeter. They do not appear anymore in the menu, if you need them modify `not_in_menu` property. JMeter team advises not to use them anymore. See 58791

Improvements

### HTTP Samplers and Test Script Recorder

- 57696
  HTTP Request : Improve responseMessage when resource download fails. Contributed by Ubik Load Pack (support at ubikloadpack.com)
- 57995
  Use FileServer for HTTP Request files. Implemented by Andrey Pokhilko (andrey at blazemeter.com) and contributed by BlazeMeter Ltd.
- 58843
  Improve the usable space in the HTTP sampler GUI. Contributed by Benoit Wiart (benoit dot wiart at gmail.com)
- 58852
  Use less memory for `PUT` requests. The uploaded data will no longer be stored in the Sampler. This is the same behaviour as with `POST` requests.
- 58860
  HTTP Request : Add automatic variable generation in HTTP parameters table by right click. Contributed by Benoit Wiart (benoit dot wiart at gmail.com)
- 58923
  normalize URIs when downloading embedded resources.
- 59005
  HTTP Sampler : Added WebDAV verb (`SEARCH`).
- 59006
  Change Default proxy recording port to `8888` to align it with Recording Template. Contributed by Antonio Gomes Rodrigues (ra0077 at gmail.com)
- 58099
  Performance : Lazily initialize HttpClient SSL Context to avoid its initialization even for HTTP only scenarios
- 57577
  HttpSampler : Retrieve All Embedded Resources, add property "`httpsampler.embedded_resources_use_md5`" to only compute md5 and not keep response data. Contributed by Benoit Wiart (benoit dot wiart at gmail.com)
- 59023
  HttpSampler UI : rework the embedded resources labels and change default number of parallel downloads to `6`. Contributed by Benoit Wiart (benoit dot wiart at gmail.com)
- 59028
  Use `SystemDefaultDnsResolver` singleton. Contributed by Benoit Wiart (benoit dot wiart at gmail.com)
- 59036
  FormCharSetFinder : Use JSoup instead of deprecated HTMLParser
- 59034
  Parallel downloads connection management is not realistic. Contributed by Benoit Wiart (benoit dot wiart at gmail.com) and Philippe Mouawad
- 59060
  HTTP Request GUI : Move File Upload to a new Tab to have more space for parameters and prevent incompatible configuration. Contributed by Benoit Wiart (benoit dot wiart at gmail.com)
- 59103
  HTTP Request Java Implementation: Change default "`http.java.sampler.retries`" to align it on HttpClient behaviour and make the name meaningful
- 59083
  HTTP Request : Make Method field editable so that additional methods (WebDAV) can be added easily
- 59118
  Add comment in recorded think time by proxy recorder. Contributed by Antonio Gomes Rodrigues (ra0077 at gmail.com)
- 59116
  Add the possibility to setup a prefix to sampler name recorded by proxy. Partly based on a patch by Antonio Gomes Rodrigues (ra0077 at gmail.com)
- 59129
  HTTP Request : Simplify GUI with simple/advanced Tabs
- 59033
  Parallel Download : Rework Parser classes hierarchy to allow plug-in parsers for different mime types
- 52073
  Embedded Resources Parallel download : Improve performances by avoiding shutdown of ThreadPoolExecutor at each sample. Contributed by Benoit Wiart (benoit dot wiart at gmail.com)
- 59190
  HTTP(S) Test Script Recorder : Suggested excludes should ignore case. Contributed by Antonio Gomes Rodrigues (ra0077 at gmail.com)
- 59140
  Parallel Download : Add CSS Parsing to extract links from CSS files
- 59249
  Http Request Defaults : Add "`Source address`" and "`Save responses as MD5`"
- 59382
  More realistic default value for `httpsampler.max_redirects`

### Other samplers

- 57928
  Add ability to define protocol (http/https) to AccessLogSampler GUI. Contributed by Jérémie Lesage (jeremie.lesage at jeci.fr)
- 58300
  Make existing Java Samplers implement Interruptible
- 58160
  JMS Publisher : reload file content if file name changes. Based partly on a patch contributed by Maxime Chassagneux (maxime.chassagneux at gmail.com)
- 58786
  JDBC Sampler : Replace Excalibur DataSource by more up to date library commons-dbcp2
- 59205
  TCP Sampler: Set connect time in sampler when connection is established.
- 59381
  JMSPublisher : FileChooserDialog filter does not work for browser buttons. Based partly on a patch contributed by Antonio Gomes Rodrigues (ra0077 at gmail.com)

### Controllers

- 58406
  IfController : Allow use of Nashorn Engine if available for JavaScript evaluation
- 58281
  RandomOrderController : Improve randomization algorithm performance. Contributed by Graham Russell (jmeter at ham1.co.uk)
- 58675
  Module controller : error message can easily be missed. Contributed by Benoit Wiart (benoit dot wiart at gmail.com)
- 58673
  Module controller : when the target element is disabled the default jtree icons are displayed. Contributed by Benoit Wiart (benoit dot wiart at gmail.com)
- 58674
  Module controller : it should not be possible to select more than one node in the tree. Contributed by Benoit Wiart (benoit dot wiart at gmail.com)
- 58680
  Module Controller : ui enhancement. Contributed by Benoit Wiart (benoit dot wiart at gmail.com)
- 58989
  Record controller gui : add a button to clear all the recorded samples. Contributed by Benoit Wiart (benoit dot wiart at gmail.com)

### Listeners

- 58041
  Tree View Listener should show sample data type
- 58122
  GraphiteBackendListener : Add Server Hits metric. Partly based on a patch from Amol Moye (amol.moye at thomsonreuters.com)
- 58681
  GraphiteBackendListener : Don't send data if no sampling occurred
- 58776
  Summariser should display a more readable duration
- 58791
  Deprecate listeners: Distribution Graph (alpha) and Spline Visualizer
- 58849
  View Results Tree : Add a search panel to the request http view to be able to search in the parameters table. Contributed by Benoit Wiart (benoit dot wiart at gmail.com)
- 58857
  View Results Tree : the request view http does not allow to resize the parameters table first column. Contributed by Benoit Wiart (benoit dot wiart at gmail.com)
- 58955
  Request view http does not correctly display http parameters in multipart/form-data. Contributed by Benoit Wiart (benoit dot wiart at gmail.com)
- 55597
  View Results Tree: Add a search feature to search in recorded samplers
- 59102
  View Results Tree: Better default value for "`view.results.tree.max_size`"
- 59099
  Backend listener : Add the possibility to consider samplersList as a Regular Expression. Contributed by Antonio Gomes Rodrigues (ra0077 at gmail.com)
- 59424
  Visualizer : Add "Clear" in popup menu

### Timers, Assertions, Config, Pre- & Post-Processors

- 58303
  Change usage of bouncycastle api in SMIMEAssertion to get rid of deprecation warnings.
- 58515
  New JSON related components : JSON-PATH Extractor and JSON-PATH Renderer in View Results Tree. Donated by Ubik Load Pack (support at ubikloadpack.com).
- 58698
  Correct parsing of auth-files in HTTP Authorization Manager.
- 58756
  CookieManager : Cookie Policy select box content must depend on Cookie implementation.
- 56358
  Cookie manager supports cross port cookies and RFC6265. Thanks to Oleg Kalnichevski (olegk at apache.org)
- 58773
  TestCacheManager : Add tests for CacheManager that use HttpClient 4
- 58742
  CompareAssertion : Reset data in TableEditor when switching between different CompareAssertions in gui. Based on a patch by Vincent Herilier (vherilier at gmail.com)
- 59108
  TableEditor: Allow rows to be moved up and down. Contributed by Vincent Herilier (vherilier at gmail.com)
- 58848
  Argument Panel : when adding an argument (add button or from clipboard) scroll the table to the new line. Contributed by Benoit Wiart (benoit dot wiart at gmail.com)
- 58865
  Allow empty default value in the Regular Expression Extractor. Contributed by Benoit Wiart (benoit dot wiart at gmail.com)
- 59156
  XMLAssertion : drop jdom dependency by using XMLReader
- 59328
  Better tooltip for Variable Names in CSVDataSet. Contributed by Antonio Gomes Rodrigues (ra0077 at gmail.com)

### Functions

- 58477
  __javaScript function : Allow use of Nashorn engine for Java8 and later versions
- 58903
  Provide __jexl3 function that uses commons-jexl3 and deprecated __jexl (1.1) function

### I18N

### General

- 58736
  Add Sample Timeout support
- 57913
  Automated backups of last saved JMX files. Contributed by Benoit Vatan (benoit.vatan at gmail.com)
- 57988
  Shortcuts (Ctrl1 &hellip; Ctrl9) to quickly add elements into test plan. Implemented by Andrey Pokhilko (andrey at blazemeter.com) and contributed by BlazeMeter Ltd.
- 58100
  Performance enhancements : Replace Random by ThreadLocalRandom.
- 58677
  `TestSaveService#testLoadAndSave` use the wrong set of files. Contributed by Benoit Wiart (benoit dot wiart at gmail.com)
- 58689
  Add shortcuts to expand / collapse a part of the tree. Contributed by Benoit Wiart (benoit dot wiart at gmail.com)
- 58696
  Create Ant task to setup Eclipse project
- 58653
  New JMeter Dashboard/Report with Dynamic Graphs, Tables to help analyzing load test results. Developed by Ubik-Ingenierie and contributed by Decathlon S.A. and Ubik-Ingenierie / UbikLoadPack
- 58699
  Workbench changes neither saved nor prompted for saving upon close. Contributed by Benoit Wiart (benoit dot wiart at gmail.com)
- 58728
  Drop old behavioural properties
- 57319
  Upgrade to HttpClient 4.5.2. With the big help from Oleg Kalnichevski (olegk at apache.org) and Gary Gregory (ggregory at apache.org).
- 58772
  Deprecate MongoDB related elements
- 58782
  ThreadGroup : Improve ergonomy
- 58165
  Show the time elapsed since the start of the load test in GUI mode. Partly based on a contribution from Maxime Chassagneux (maxime.chassagneux at gmail.com)
- 58814
  JVM no longer recognizes option `MaxLiveObjectEvacuationRatio`; remove from comments
- 58810
  Config Element Counter (and others): Check Boxes Toggle Area Too Big
- 56554
  JSR223 Test Element : Generate compilation cache key automatically. Contributed by Benoit Wiart (benoit dot wiart at gmail.com)
- 58911
  Header Manager : it should be possible to copy/paste between Header Managers. Contributed by Benoit Wiart (benoit dot wiart at gmail.com)
- 58864
  Arguments Panel : when moving parameter with up / down, ensure that the selection remains visible. Based on a contribution by Benoit Wiart (benoit dot wiart at gmail.com)
- 58968
  Add a new template to allow to record script with think time included. Contributed by Antonio Gomes Rodrigues (ra0077 at gmail.com)
- 58978
  Settings defaults : Switch "`jmeter.save.saveservice.assertion_results_failure_message`" to true (after 2.13)
- 58991
  Settings defaults : Switch "`jmeter.save.saveservice.print_field_names`" to true (after 2.13)
- 57182
  Settings defaults : Switch "`jmeter.save.saveservice.idle_time`" to true (after 2.13)
- 58870
  TableEditor: minimum size is too small. Contributed by Vincent Herilier (vherilier at gmail.com)
- 58933
  JSyntaxTextArea : Ability to set font. Contributed by Denis Kirpichenkov (denis.kirpichenkov at gmail.com)
- 58793
  Create developers page explaining how to build and contribute
- 59046
  JMeter Gui Replace controller should keep the name and the selection. Contributed by Benoit Wiart (benoit dot wiart at gmail.com)
- 59038
  Deprecate HTTPClient 3.1 related elements
- 59094
  Drop support of old JMX file format
- 59082
  Remove the "`TestCompiler.useStaticSet`" parameter. Contributed by Benoit Wiart (benoit dot wiart at gmail.com)
- 59093
  Option parsing error message can be 'lost'
- 58715
  Feature request: Bundle `groovy-all` with JMeter
- 58426
  Improve display of JMeter on high resolution devices (HiDPI) (part 1 of enhancement)
- 59105
  TableEditor : Add ability to paste rows from clipboard and delete multiple selection. Contributed by Vincent Herilier (vherilier at gmail.com)
- 59197
  Thread Group : it should be possible to only run a single threadgroup or a selection of threadgroups with a popup menu. Contributed by Benoit Wiart (benoit dot wiart at gmail.com)
- 59207
  Change the font color of `errorsOrFatalsLabel` to red when an error occurs. Contributed by Antonio Gomes Rodrigues (ra0077 at gmail.com)
- 58941
  Create a new Starter that runs thread groups in validation mode (`1` thread only, `1` iteration, no pause all customizable)
- 59236
  JMeter Properties : Make some cleanup
- 59240
  Introduce a slf4j adapter for Logkit (this allows using slf4j within plugins and core code)
- 59153
  Stop test if CSVDataSet is accessing non-existing file. Contributed by Antonio Gomes Rodrigues (ra0077 at gmail.com)
- 59320
  Better tooltip in GUI with GenericTestBeanCustomizer (CSV Data Set Config, JDBC Connection Configuration, Keystore Configuration, &hellip;) . Based on a patch by Antonio Gomes Rodrigues (ra0077 at gmail.com)
- 59171
  Sample Result SaveConfig Dialog is generated in random order
- 59425
  Display error about missing help page inside the help pane

Non-functional changes

- Updated to httpclient, httpmime 4.5.2 (from 4.2.6)
- Updated to tika-core and tika-parsers 1.12 (from 1.7)
- Updated to commons-math3 3.6.1 (from 3.4.1)
- Updated to commons-pool2 2.4.2 (from 2.3)
- Updated to commons-lang 3.4 (from 3.3.2)
- Updated to rhino-1.7.7.1 (from 1.7R5)
- Updated to jodd-3.6.7.jar (from 3.6.4)
- Updated to jsoup-1.8.3 (from 1.8.1)
- Updated to rsyntaxtextarea-2.5.8 (from 2.5.6)
- Updated to slf4j-1.7.12 (from 1.7.10)
- Updated to xmlgraphics-commons-2.0.1 (from 1.5)
- Updated to commons-collections-3.2.2 (from 3.2.1)
- Updated to commons-net 3.4 (from 3.3)
- Updated to slf4j 1.7.13 (from 1.7.12)
- 57981
  Require a minimum of Java 7. Partly contributed by Graham Russell (jmeter at ham1.co.uk)
- 58684
  JMeterColor does not need to extend `java.awt.Color`. Contributed by Benoit Wiart (benoit dot wiart at gmail.com)
- 58687
  ButtonPanel should die. Contributed by Benoit Wiart (benoit dot wiart at gmail.com)
- 58705
  Make `org.apache.jmeter.testelement.property.MultiProperty` iterable. Contributed by Benoit Wiart (benoit dot wiart at gmail.com)
- 58729
  Cleanup extras folder for maintainability
- 57110
  Fixed spelling+grammar, formatting, removed commented out code etc. Contributed by Graham Russell (jmeter at ham1.co.uk)
- Correct instructions on running JMeter in `help.txt`. Contributed by Pascal Schumacher (pascalschumacher at gmx.net)
- 58704
  Non regression testing : Ant task batchtest fails if tests and run in a non `en_EN` locale and use a JMX file that uses a CSV DataSet
- 58897
  Improve JUnit Test code. Contributed by Benoit Wiart (benoit dot wiart at gmail.com)
- 58949
  Cleanup of LDAP code. Based on a patch by Benoit Wiart (benoit dot wiart at gmail.com)
- 58897
  Improve JUnit Test code. Contributed by Benoit Wiart (benoit dot wiart at gmail.com)
- 58967
  Use JUnit categories to exclude tests that need a gui. Contributed by Benoit Wiart (benoit dot wiart at gmail.com)
- 59003
  `ClutilTestCase` `testSingleArg8` and `testSingleArg9` are identical
- 59064
  Remove OldSaveService which supported very old Avalon format JTL (result) files
- 59165
  RSyntaxTextArea not compatible with headless testing
- 59021
  Use `Double#compare` instead of reimplementing it in `NumberProperty#compareTo`
- 59037
  Drop HtmlParserHTMLParser and dependencies on htmlparser and htmllexer
- 58465
  JMS Read response field is badly named and documented
- 58601
  Change check for modification of `saveservice.properties` from `SVN Revision ID` to sha1 sum of the file itself.
- 58726
  Remove the `jmeterthread.startearlier` parameter. Contributed by Benoit Wiart (benoit dot wiart at gmail.com)
- 58784
  Make `JMeterUtils#runSafe` sync/async awt invocation configurable and change the visualizers to use the async version.
- 58790
  Issue in CheckDirty and its relation to ActionRouter
- 59095
  Remove UserParameterXMLParser that was deprecated eight years ago. Contributed by Benoit Wiart (benoit dot wiart at gmail.com)
- 59262
  Add list of binary jars to LICENSE; use that for unit tests
- 59353
  Add "Deprecated and removed elements" in "Incompatible changes" part in changes.xml. Contributed by Antonio Gomes Rodrigues (ra0077 at gmail.com)

Bug fixes

### HTTP Samplers and Test Script Recorder

- 57806
  "`audio/x-mpegurl`" mime type is erroneously considered as binary by ViewResultsTree. Contributed by Ubik Load Pack (support at ubikloadpack.com).
- 57858
  Don't call `sampleEnd` twice in HTTPHC4Impl when a `RuntimeException` or an `IOException` occurs in the sample method.
- 57921
  HTTP/1.1 without keep-alive "`Connection`" response header no longer uses infinite keep-alive.
- 57956
  The `hc.parameters` reference in `jmeter.properties` doesn't work when JMeter is not started in `bin`.
- 58137
  JMeter fails to download embedded URLs that contain illegal characters in URL (it does not escape them).
- 58201
  Make usage of port in the host header more consistent across the different http samplers.
- 58453
  HTTP Test Script Recorder : `NullPointerException` when disabling Capture HTTP Headers
- 57804
  HTTP Request doesn't reuse cached SSL context when using Client Certificates in HTTPS (only fixed for HttpClient4 implementation)
- 58800
  `proxy.pause` default value: fix documentation
- 58844
  Buttons enable / disable is broken in the arguments panel. Contributed by Benoit Wiart (benoit dot wiart at gmail.com)
- 58861
  When clicking on up, down or detail while in a cell of the argument panel, newly added content is lost. Contributed by Benoit Wiart (benoit dot wiart at gmail.com)
- 57935
  SSL SNI extension not supported by HttpClient 4.2.6
- 59044
  Http Sampler : It should not be possible to select the multipart encoding if the method is not `POST`. Contributed by Benoit Wiart (benoit dot wiart at gmail.com)
- 59008
  Http Sampler: Infinite recursion SampleResult on frame depth limit reached
- 58881
  HTTP Request : HTTPHC4Impl shows exception when server uses "`deflate`" compression
- 58583
  HTTP client fails to close connection if server misbehaves by not sending "`connection: close`", violating HTTP RFC 2616 / RFC 7230
- 58950
  `NoHttpResponseException` when Pause between samplers exceeds keepalive sent by server
- 59085
  Http file panel : data lost on browse cancellation. Contributed by Benoit Wiart (benoit dot wiart at gmail.com)
- 56141
  Application does not behave correctly when using HTTP Recorder. With the help of Dan (java.junkee at yahoo.com)
- 59079
  "`httpsampler.max_redirects`" property is not enforced when "`Redirect Automatically`" is used
- 58811
  When pasting arguments between http samplers the column "Encode" and "Include Equals" are lost. Contributed by Benoit Wiart (benoit dot wiart at gmail.com)

### Other Samplers

- 58013
  Enable all protocols that are enabled on the default SSLContext for usage with the SMTP Sampler.
- 58209
  JMeter hang when testing javasampler because `HashMap.put()` is called from multiple threads without sync.
- 58301
  Use typed methods such as `setInt`, `setDouble`, `setDate`, &hellip; for prepared statement #27
- 58851
  Add a dependency on hamcrest-core to allow JUnit tests with annotations to work
- 58947
  Connect metric is wrong when `ConnectException` occurs
- 58980
  JMS Subscriber will return successful as long as 1 message is received. Contributed by Harrison Termotto (harrison dot termotto at stonybrook.edu)
- 59075
  JMS Publisher: `NumberFormatException` is thrown if priority or expiration field is empty
- 59345
  SMTPSampler connection leak. Based on a patch by Luca Maragnani (luca dot maragnani at gmail dot com)

### Controllers

- 58600
  Display correct filenames, when they are searched by IncludeController
- 58678
  Module Controller : limit target element selection. Contributed by Benoit Wiart (benoit dot wiart at gmail.com)
- 58714
  Module controller : it should not be possible to add a timer as child. Contributed by Benoit Wiart (benoit dot wiart at gmail.com)
- 59067
  JMeter fails to iterate over Controllers that are children of a TransactionController having "`Generate parent sample`" checked after an assertion error occurs on a Thread Group with "`Start Next Thread Loop`". Contributed by Benoit Wiart(benoit dot wiart at gmail.com)
- 59076
  Test should fail if a module controller cannot find its replacement subtree

### Listeners

- 58033
  SampleResultConverter should note that it cannot record non-TEXT data
- 58845
  Request http view doesn't display all the parameters. Contributed by Benoit Wiart (benoit dot wiart at gmail.com)
- 58413
  ViewResultsTree : Request HTTP Renderer does not show correctly parameters that contain ampersand (&). Contributed by Benoit Wiart (benoit dot wiart at gmail.com)
- 59172
  SampleResult SaveConfig does not allow some fields to be disabled
- 58329
  Response Time Graph and Aggregate Graph : Save graph to file does not take into account the settings changed since last click on Graph. Contributed by David Coppens (d.l.coppens at gmail.com)

### Timers, Assertions, Config, Pre- & Post-Processors

- 58079
  Do not cache HTTP samples that have a `Vary` header when using a HTTP CacheManager.
- 58912
  Response assertion gui : Deleting more than 1 selected row deletes only one row. Contributed by Benoit Wiart (benoit dot wiart at gmail.com)

### Functions

- 57825
  __Random function fails if `min` value is equal to `max` value (regression related to 54453)

### I18N

### General

- 54826
  Don't fail on long strings in JSON responses when displaying them as JSON in View Results Tree.
- 57734
  Maven transient dependencies are incorrect for 2.13 (Fixed group ids for Commons Pool and Math)
- 57731
  `TESTSTART.MS` has always the value of the first Test started in Server mode in NON GUI Distributed testing
- 58016
  Error type casting using external SSL Provider. Contributed by Kirill Yankov (myworkpostbox at gmail.com)
- 58293
  SOAP/XML-RPC Sampler file browser generates NullPointerException
- 58685
  JDatefield : Make the modification of the date with up/down arrow work. Contributed by Benoit Wiart (benoit dot wiart at gmail.com)
- 58693
  Fix "Cannot nest output folder 'jmeter/build/components' inside output folder 'jmeter/build'" when setting up eclipse
- 58781
  Command line option "`-?`" shows Unknown option
- 57821
  Command-line option "`-X --remoteexit`" doesn't work since 2.13 (regression related to 57500)
- 58795
  NPE may occur in `GuiPackage#getTestElementCheckSum` with some 3rd party plugins
- 58913
  When closing JMeter should not interpret cancel as "destroy my test plan". Contributed by Benoit Wiart (benoit dot wiart at gmail.com)
- 59096
  Search Feature : Case insensitive search is not really case insensitive
- 59193
  `ant run_gui` fails with `ClassNotFoundException` or `IllegalAccessError` when accessing classes from dependencies not loaded through `Thread.currentThread().getContextClassLoader()`
- 59225
  Bad display of running indicator icon. Contributed by Antonio Gomes Rodrigues (ra0077 at gmail.com)
- 56927
  Disable language change during a test
- 59391
  In Distributed mode, the client exits abnormally at the end of test
- 59397
  `build.xml` does not make dist.executables executable on Unix systems

Thanks

We thank all contributors mentioned in bug and improvement sections above:

- Ubik Load Pack
- Benoit Vatan (benoit.vatan at gmail.com)
- Jérémie Lesage (jeremie.lesage at jeci.fr)
- Kirill Yankov (myworkpostbox at gmail.com)
- Amol Moye (amol.moye at thomsonreuters.com)
- Samoht-fr (https://github.com/Samoht-fr)
- Graham Russell (jmeter at ham1.co.uk)
- Maxime Chassagneux (maxime.chassagneux at gmail.com)
- Benoit Wiart (benoit.wiart at gmail.com)
- Decathlon S.A.
- Ubik-Ingenierie S.A.S.
- Oleg Kalnichevski (olegk at apache.org)
- Pascal Schumacher (pascalschumacher at gmx.net)
- Vincent Herilier (vherilier at gmail.com)
- Florent Sabbe (f dot sabbe at ubik-ingenierie.com)
- Antonio Gomes Rodrigues (ra0077 at gmail.com)
- Harrison Termotto (harrison dot termotto at stonybrook.edu
- Denis Kirpichenkov (denis.kirpichenkov at gmail.com)
- Gary Gregory (ggregory at apache.org)
- David Coppens (d.l.coppens at gmail.com)
- Luca Maragnani (luca dot maragnani at gmail dot com)
- Philip Helger (http://www.helger.com) for his CSS Parser and for taking into account our bug reports very rapidly
- Irek Pastusiak (the.automatic.tester at gmail.com)

We also thank bug reporters who helped us improve JMeter.
For this release we want to give special thanks to the following reporters for the clear reports and tests made after our fixes:

- purnasatyap at gmail dot com for the tests and reports on nightly build
- Sergey Batalin (sergey_batalin at mail dot ru) for the tests and reports on nightly build
- Vincent Daburon (vdaburon at gmail dot com) for the tests and reports on nightly build

Apologies if we have omitted anyone else.

Known problems and workarounds

- The Once Only controller behaves correctly under a Thread Group or Loop Controller, but otherwise its behaviour is not consistent (or clearly specified).
- The numbers that appear to the left of the green box are the number of active threads / total number of threads, the total number of threads only applies to a locally run test, otherwise it will show `0` (see 55510).
- Note that there is a bug in Java on some Linux systems that manifests itself as the following error when running the test cases or JMeter itself:

       [java] WARNING: Couldn't flush user prefs:
       java.util.prefs.BackingStoreException:
       java.lang.IllegalArgumentException: Not supported: indent-number

  This does not affect JMeter operation. This issue is fixed since Java 7b05.
- Note that under some windows systems you may have this WARNING:

      java.util.prefs.WindowsPreferences
      WARNING: Could not open/create prefs root node Software\JavaSoft\Prefs at root 0
      x80000002. Windows RegCreateKeyEx(&hellip;) returned error code 5.

  The fix is to run JMeter as Administrator, it will create the registry key for you, then you can restart JMeter as a normal user and you won't have the warning anymore.
- With Oracle Java 7 and Mac Book Pro Retina Display, the JMeter GUI may look blurry. This is a known Java bug, see Bug JDK-8000629. A workaround is to use a Java 7 update 40 runtime which fixes this issue.
- You may encounter the following error:

      java.security.cert.CertificateException: Certificates does not conform to algorithm constraints

  if you run a HTTPS request on a web site with a SSL certificate (itself or one of SSL certificates in its chain of trust) with a signature algorithm using MD2 (like md2WithRSAEncryption) or with a SSL certificate with a size lower than 1024 bits. This error is related to increased security in Java 7 version u16 (MD2) and version u40 (Certificate size lower than 1024 bits), and Java 8 too.
  To allow you to perform your HTTPS request, you can downgrade the security of your Java installation by editing the Java `jdk.certpath.disabledAlgorithms` property. Remove the MD2 value or the constraint on size, depending on your case.
  This property is in this file:

      JAVA_HOME/jre/lib/security/java.security

  See 56357 for details.
- Under Mac OSX Aggregate Graph will show wrong values due to mirroring effect on numbers. This is due to a known Java bug, see Bug JDK-8065373 The fix is to use JDK7_u79, JDK8_u45 or later.
- View Results Tree may fail to display some HTML code under HTML renderer, see 54586. This is due to a known Java bug which fails to parse "`px`" units in row/col attributes. See Bug JDK-8031109 The fix is to use JDK9 b65 or later.
- JTable selection with keyboard (SHIFTup/down) is totally unusable with JAVA 7 on Mac OSX. This is due to a known Java bug JDK-8025126 The fix is to use JDK 8 b132 or later.

# Version 2.13

Summary

- New and Noteworthy
- Known bugs
- Incompatible changes
- Bug fixes
- Improvements
- Non-functional changes
- Thanks

New and Noteworthy
New Elements
New Async BackendListener with Graphite implementation

A new Async BackendListener has been added to allow sending result data to a backend listener. JMeter ships with a GraphiteBackendListenerClient that allows sending results to a Graphite server using Pickle or Plaintext protocols. You can implement your own backend by extending AbstractBackendListenerClient. This backend could be a database (JDBC), a Message Oriented Middleware (JMS), a Webservice or anything you want.

This is the kind of Live Dashboard you can obtain using Grafana and InfluxDB
Read this for more details.

Grafana dashboard
Core Improvements
New connect time metric

Starting with this version a new metric called connectTime has been added. It represents the time to establish connection. By default it is not saved to CSV or XML, to have it saved add to user.properties:
`jmeter.save.saveservice.connect_time=true`

Aggregate Graph and Report

The listeners Aggregate Graph and Aggregate Report previously showed only the 90 percentile (historical behavior), the 95 percentile and the 99 percentile have been added and are customizable. To setup the percentiles value you want, add to user.properties:
`aggregate_rpt_pct1=90
aggregate_rpt_pct2=95
aggregate_rpt_pct3=99`

HTTP(S) Test Script Recorder

Now component is able to detect authentication schemes and automatically adds a pre-configured HTTP Authorization Manager with the correct Mechanism.

HTTP Request

The CalDAV verbs (Calendar extensions to WebDAV) REPORT and MKCALENDAR have been added in the HTTP Request sampler.

JDBC Request

The ResultSet can be get as a object, this allows to handle more easily the results after in BeanShell, JSR223 scripts, &hellip;

Distributed Testing

To allow better usage of Distributed Testing in the cloud, retry behaviour has been added when starting test on servers. Read this for more details.

Distributed Testing performance

Since JMeter 2.13, Stripping modes (StrippingBatch being the default mode) now also strip responses from SubResults improving consumed network bandwidth.

Documentation refresh

A new style for website (responsive and more up to date) has been created by Felix Schumacher. Documentations have been refreshed particularly:

- Building a Webservice Test Plan
- Best Practices
- Help! My boss wants me to load test our application!

GUI Improvements
Module Controller

The Module Controller now shows the target controller in a tree view (instead of combo list).

Toolbar

JMeter's toolbar has been refreshed for some icons (start, toggle, etc.). Three sizes are now available for the icons: 22x22, 32x32 and 48x48.
The property to define your preferred size is:

    jmeter.toolbar.icons.size=value

with the value 22x22 (default size), 32x32 or 48x48.

The toolbar with 22x22 pixels icons

The toolbar with 32x32 pixels icons

The toolbar with 48x48 pixels icons

HTTP(S) Test Script Recorder

If your Test Plan does not contains a Recording Controller, a new warning message will appear if the HTTP(S) Test Script Recorder is configured to send the samples into a Recording Controller.

Incompatible changes

- Since 2.13, Aggregate Graph, Summary Report and Aggregate Report now export percentages to %, before they exported the decimal value which differed from what was shown in GUI
- Third party plugins may be impacted by fix of 57586, ensure that your subclass of HttpTestSampleGui implements ItemListener if you relied on parent class doing so.
- Report package has been removed, `ApacheJMeter_report.jar` is not generated anymore as a consequence, see 57269

Improvements

### HTTP Samplers and Test Script Recorder

- 25430
  HTTP(S) Test Script Recorder : Make it populate HTTP Authorization Manager. Partly based on a patch from Dzmitry Kashlach (dzmitrykashlach at gmail.com)
- 57381
  HTTP(S) Test Script Recorder should display an error if Target Controller references a Recording Controller and no Recording Controller exists. Contributed by Ubik Load Pack (support at ubikloadpack.com)
- 57488
  Performance : Improve SSLContext reset for Two-way SSL Authentication
- 57565
  SamplerCreator : Add method to allow implementations to add children to created sampler
- 57606
  HTTPSamplerBase#errorResult changes the sample label on exception
- 57613
  HTTP Sampler : Added CalDAV verbs (REPORT, MKCALENDAR). Contributed by Richard Brigham (richard.brigham at teamaol.com)
- 48799
  Add time to establish connection to available sample metrics. Implemented by Andrey Pokhilko (andrey at blazemeter.com) and contributed by BlazeMeter Ltd. and Pieter Ennes (apache.org at spam.ennes.nl)
- 57500
  Introduce retry behavior for distributed testing. Implemented by Andrey Pokhilko and Dzimitry Kashlach and contributed by BlazeMeter Ltd.

### Other samplers

- 57322
  JDBC Test elements: add ResultHandler to deal with ResultSets(cursors) returned by callable statements. Contributed by Yngvi &THORN;&oacute;r Sigurj&oacute;nsson (blitzkopf at gmail.com)

### Controllers

- 57561
  Module controller UI : Replace combobox by tree. Contributed by Maciej Franek (maciej.franek at gmail.com)
- 57648
  TestFragment should be disabled when created. Contributed by Ubik Load Pack (support at ubikloadpack.com)

### Listeners

- 55932
  Create a Async BackendListener to allow easy plug of new listener (Graphite, JDBC, Console, &hellip;)
- 57246
  BackendListener : Create a Graphite implementation
- 57217
  Aggregate graph and Aggregate report improvements (3 configurable percentiles, same data in both, factor out code). Contributed by Ubik Load Pack (support at ubikloadpack.com)
- 57537
  BackendListener : Allow implementations to drop samples

### Timers, Assertions, Config, Pre- & Post-Processors

### Functions

- 54453
  Performance enhancements : Replace Random by ThreadLocalRandom in __Random function

### I18N

### General

- 57518
  Icons for toolbar with several sizes
- 57605
  When there is an error loading Test Plan, `SaveService.loadTree` returns `null` leading to NPE in callers
- 57269
  Drop `org.apache.jmeter.reports` package
- 53764
  Website : Create a new style for website

Non-functional changes

- Updated to jsoup-1.8.1.jar (from 1.7.3)
- Updated to tika-core and tika-parsers 1.7 (from 1.6)
- Updated to commons-codec-1.10.jar (from 1.9)
- Updated to dnsjava-2.1.7.jar (from 2.1.6)
- Updated to jodd-3.6.4.jar (from 3.6.1)
- Updated to junit-4.12.jar (from 4.11)
- Updated to rhino-1.7R5 (from 1.7R4)
- Updated to rsyntaxtextarea-2.5.6 (from 2.5.3)
- Updated to slf4j-1.7.10 (from 1.7.5)
- 57276
  RMIC no longer needed since Java 5
- 57310
  Replace `System.getProperty("file.separator")` with `File.separator` throughout (Also "`path.separator"` with `File.pathSeparator`)
- 57389
  Fix potential NPE in converters
- 57417
  Remove unused method `isTemporary` from `NullProperty`. This was a leftover from a refactoring done in 2003.
- 57418
  Remove unused constructor from Workbench
- 57419
  Remove unused interface ModelListener.
- 57466
  IncludeController : Remove an unneeded set creation. Contributed by Benoit Wiart (benoit.wiart at gmail.com)
- Added property `loggerpanel.usejsyntaxtext` to disable the use of JSyntaxTextArea for the Console Logger (in case of memory or other issues)
- 57586
  HttpTestSampleGui: Remove interface ItemListener implementation

Bug fixes

### HTTP Samplers and Test Script Recorder

- 57385
  Getting empty thread name in xml result for HTTP requests with "Follow Redirects" set. Contributed by Ubik Load Pack (support at ubikloadpack.com)
- 57579
  NullPointerException error is raised on main sample if "RETURN_NO_SAMPLE" is used (default) and "Use Cache-Control / Expires header&hellip;" is checked in HTTP Cache Manager

### Other Samplers

### Controllers

- 57447
  Use only the user listed DNS Servers, when "use custom DNS resolver" option is enabled.

### Listeners

- 57262
  Aggregate Report, Aggregate Graph and Summary Report export : headers use keys instead of labels
- 57346
  Summariser : The + (difference) reports show wrong elapsed time and throughput
- 57449
  Distributed Testing: Stripped modes do not strip responses from SubResults (affects load tests that use Download of embedded resources). Contributed by Ubik Load Pack (support at ubikloadpack.com)
- 57562
  View Results Tree CSS/JQuery Tester : Nothing happens when there is an error in syntax and an exception occurs in jmeter.log
- 57514
  Aggregate Graph, Summary Report and Aggregate Report show wrong percentage reporting in saved file

### Timers, Assertions, Config, Pre- & Post-Processors

- 57607
  Constant Throughput Timer : Wrong throughput computed in shared modes due to rounding error

### General

- 57365
  Selected LAF is not correctly setup due to call of `UIManager.setLookAndFeel` too late. Contributed by Ubik Load Pack (support at ubikloadpack.com)
- 57364
  Options < Look And Feel does not update all windows LAF. Contributed by Ubik Load Pack (support at ubikloadpack.com)
- 57394
  When constructing an instance with ClassTools#construct(String, int) the integer was ignored and the default constructor was used instead.
- 57440
  OutOfMemoryError after introduction of JSyntaxTextArea in LoggerPanel due to disableUndo not being taken into account.
- 57569
  FileServer.reserveFile - inconsistent behaviour when hasHeader is true
- 57555
  Cannot use JMeter 2.12 as a maven dependency. Contributed by Pascal Schumacher (pascal.schumacher at t-systems.com)
- 57608
  Fix start script compatibility with old Unix shells, e.g. on Solaris

Thanks

We thank all contributors mentioned in bug and improvement sections above:

- Ubik Load Pack
- Yngvi &THORN;&oacute;r Sigurj&oacute;nsson (blitzkopf at gmail.com)
- Dzmitry Kashlach (dzmitrykashlach at gmail.com)
- BlazeMeter Ltd.
- Benoit Wiart (benoit.wiart at gmail.com)
- Pascal Schumacher (pascal.schumacher at t-systems.com)
- Maciej Franek (maciej.franek at gmail.com)
- Richard Brigham (richard.brigham at teamaol.com)
- Pieter Ennes (apache.org at spam.ennes.nl)

We also thank bug reporters who helped us improve JMeter.
For this release we want to give special thanks to the following reporters for the clear reports and tests made after our fixes:

- Chaitanya Bhatt (bhatt.chaitanya at gmail.com) for his thorough testing of new BackendListener and Graphite Client implementation.
- Marcelo Jara (marcelojara at hotmail.com) for his clear report on 57607.

Apologies if we have omitted anyone else.

Known bugs

- The Once Only controller behaves correctly under a Thread Group or Loop Controller, but otherwise its behaviour is not consistent (or clearly specified).
- The numbers that appear to the left of the green box are the number of active threads / total number of threads, the total number of threads only applies to a locally run test, otherwise it will show 0 (see 55510).
- Note that there is a bug in Java on some Linux systems that manifests itself as the following error when running the test cases or JMeter itself:

       [java] WARNING: Couldn't flush user prefs:
       java.util.prefs.BackingStoreException:
       java.lang.IllegalArgumentException: Not supported: indent-number

  This does not affect JMeter operation. This issue is fixed since Java 7b05.
- Note that under some windows systems you may have this WARNING:

      java.util.prefs.WindowsPreferences
      WARNING: Could not open/create prefs root node Software\JavaSoft\Prefs at root 0
      x80000002. Windows RegCreateKeyEx(&hellip;) returned error code 5.

  The fix is to run JMeter as Administrator, it will create the registry key for you, then you can restart JMeter as a normal user and you won't have the warning anymore.
- With Java 1.6 and Gnome 3 on Linux systems, the JMeter menu may not work correctly (shift between mouse's click and the menu). This is a known Java bug (see 54477). A workaround is to use a Java 7 runtime (OpenJDK or Oracle JDK).
- With Oracle Java 7 and Mac Book Pro Retina Display, the JMeter GUI may look blurry. This is a known Java bug, see Bug JDK-8000629. A workaround is to use a Java 7 update 40 runtime which fixes this issue.
- You may encounter the following error: java.security.cert.CertificateException: Certificates does not conform to algorithm constraints if you run a HTTPS request on a web site with a SSL certificate (itself or one of SSL certificates in its chain of trust) with a signature algorithm using MD2 (like md2WithRSAEncryption) or with a SSL certificate with a size lower than 1024 bits. This error is related to increased security in Java 7 version u16 (MD2) and version u40 (Certificate size lower than 1024 bits), and Java 8 too.
  To allow you to perform your HTTPS request, you can downgrade the security of your Java installation by editing the Java jdk.certpath.disabledAlgorithms property. Remove the MD2 value or the constraint on size, depending on your case.
  This property is in this file:

      JAVA_HOME/jre/lib/security/java.security

  See 56357 for details.

# Version 2.12

Summary

- New and Noteworthy
- Known bugs
- Incompatible changes
- Bug fixes
- Improvements
- Non-functional changes
- Thanks

New and Noteworthy
Java 8 support

Now, JMeter 2.12 is compliant with Java 8.

New Elements
Critical Section Controller

The Critical Section Controller allow to serialize the execution of a section in your tree. Only one instance of the section will be executed at the same time during the test.

DNS Cache Manager

The new configuration element DNS Cache Manager(see 56841) improves the testing of:

- CDN (Content Delivery Network)
- DNS load balancing.
- Load Balancers like Amazon Elastic Load Balancer

Core Improvements
Smarter Recording of Http Test Plans

Test Script Recorder has been improved in many ways

- Better matching of Variables in Requests, making Test Script Recorder variabilize your sampler during recording more versatile
- Ability to filter from View Results Tree the Samples that are excluded from recording, this lets you concentrate on recorded Samplers analysis and not bother with useless Sample Results
- Better defaults for recording, since this version Recorder will number created Samplers letting you find them much easily in View Results Tree. Grouping of Samplers under Transaction Controller will be smarter making all requests emitted by a web page be children as new Transaction Controller

Support of Webdav requests

You can now test against WebDav server using HttpClient4 Implementation of Http Request

Better handling of embedded resources

When download embedded resources is checked, JMeter now uses User Agent header to download or not resources embedded within conditional comments as per About conditional comments.

Ability to customize Cache Manager (Browser cache simulation) handling of cached resources

You can now configure the behaviour of JMeter when a resource is found in Cache, this can be controlled with cache_manager.cached_resource_mode property

JMS Publisher / JMS Point-to-Point

Add JMSPriority and JMSExpiration fields for these samplers.

Mail Reader Sampler

You can now specify the number of messages that want you retrieve (before all messages were retrieved). In addition, you can fetch only the message header now.

SMTP Sampler

Adding the Connection timeout and the Read timeout to the SMTP Sampler.

Synchronizing Timer

Adding a timeout to define the maximum time to waiting of the group of virtual users.

Performance improvements

A big improvement in performances of Functions has been made by lifting useless synchronization. It concerns all functions except __StringFromFile, __XPath and __BeanShell, see 57114

__jexl2 performances have been improved to avoid contention point, see 56708

GUI Improvements
Undo/Redo support

Undo / Redo has been introduced and allows user to undo/redo changes made on Test Plan Tree. This feature (ALPHA MODE) is disabled by default, to enable it set property undo.history.size=25

View Results Tree

Improve the ergonomics of View Results Tree by changing placement of Renderers and allowing custom ordering (with the property view.results.tree.renderers_order).

Response Time Graph

Adding the ability for the Response Time Graph listener to save/restore format its settings in/from the jmx file.

Log Viewer

Starting with this version, the last lines of JMeter's log file (jmeter.log) can be viewed directly in GUI by clicking on Warning icon in the upper right corner. This will unfold the Log Viewer panel and show logs.

File Opening

Now, "Open File dialog" uses last opened file folder as start folder, see 52707

Known bugs

- The Once Only controller behaves correctly under a Thread Group or Loop Controller, but otherwise its behaviour is not consistent (or clearly specified).
- The numbers that appear to the left of the green box are the number of active threads / total number of threads, the total number of threads only applies to a locally run test, otherwise it will show 0 (see 55510).
- Note that there is a bug in Java on some Linux systems that manifests itself as the following error when running the test cases or JMeter itself:

       [java] WARNING: Couldn't flush user prefs:
       java.util.prefs.BackingStoreException:
       java.lang.IllegalArgumentException: Not supported: indent-number

  This does not affect JMeter operation. This issue is fixed since Java 7b05.
- Note that under some windows systems you may have this WARNING:

      java.util.prefs.WindowsPreferences
      WARNING: Could not open/create prefs root node Software\JavaSoft\Prefs at root 0
      x80000002. Windows RegCreateKeyEx(&hellip;) returned error code 5.

  The fix is to run JMeter as Administrator, it will create the registry key for you, then you can restart JMeter as a normal user and you won't have the warning anymore.
- With Java 1.6 and Gnome 3 on Linux systems, the JMeter menu may not work correctly (shift between mouse's click and the menu). This is a known Java bug (see 54477 ). A workaround is to use a Java 7 runtime (OpenJDK or Oracle JDK).
- With Oracle Java 7 and Mac Book Pro Retina Display, the JMeter GUI may look blurry. This is a known Java bug, see Bug JDK-8000629. A workaround is to use a Java 7 update 40 runtime which fixes this issue.
- You may encounter the following error: java.security.cert.CertificateException: Certificates does not conform to algorithm constraints if you run a HTTPS request on a web site with a SSL certificate (itself or one of SSL certificates in its chain of trust) with a signature algorithm using MD2 (like md2WithRSAEncryption) or with a SSL certificate with a size lower than 1024 bits. This error is related to increased security in Java 7 version u16 (MD2) and version u40 (Certificate size lower than 1024 bits), and Java 8 too.
  To allow you to perform your HTTPS request, you can downgrade the security of your Java installation by editing the Java jdk.certpath.disabledAlgorithms property. Remove the MD2 value or the constraint on size, depending on your case.
  This property is in this file:

      JAVA_HOME/jre/lib/security/java.security

  See 56357 for details.

Incompatible changes

- Since JMeter 2.12, active threads in all thread groups and active threads in current thread group are saved by default to CSV or XML results, see 57025. This is usually the expected behaviour as you want to have the number of running threads during the test. But if you want to revert to previous behaviour, set property jmeter.save.saveservice.thread_counts=false
- Since JMeter 2.12, Mail Reader Sampler will show 1 for number of samples instead of number of messages retrieved, see 56539
- Since JMeter 2.12, when using Cache Manager, if resource is found in cache no SampleResult will be created, in previous version a SampleResult with empty content and 204 return code was returned, see 54778. You can choose between different ways to handle this case, see `cache_manager.cached_resource_mode` in `jmeter.properties`.
- Since JMeter 2.12, Log Viewer will no more clear logs when closed and will have logs available even if closed. See 56920. Read Hints and Tips > Enabling Debug logging for details on configuring this component.

Bug fixes

### HTTP Samplers and Test Script Recorder

- 55998
  - HTTP recording – Replacing port value by user defined variable does not work
- 56178
  - keytool error: Invalid escaped character in AVA: - some characters must be escaped
- 56222
  - NPE if jmeter.httpclient.strict_rfc2616=true and location is not absolute
- 56263
  - DefaultSamplerCreator should set BrowserCompatible Multipart true
- 56231
  - Move redirect location processing from HC3/HC4 samplers to HTTPSamplerBase#followRedirects()
- 56207
  - URLs get encoded on redirects in HC3.1 & HC4 samplers
- 56303
  - The width of target controller's combo list should be set to the current panel size, not on label size of the controllers
- 54778
  - HTTP Sampler should not return 204 when resource is found in Cache, make it configurable with new property cache_manager.cached_resource_mode

### Other Samplers

- 55977
  - JDBC pool keepalive flooding
- 55999
  - Scroll bar on jms point-to-point sampler does not work when content exceeds display
- 56198
  - JMSSampler : NullPointerException is thrown when JNDI underlying implementation of JMS provider does not comply with `Context.getEnvironment` contract
- 56428
  - MailReaderSampler - should it use mail.pop3s.* properties?
- 46932
  - Alias given in select statement is not used as column header in response data for a JDBC request. Based on report and analysis of Nicola Ambrosetti
- 56539
  - Mail reader sampler: When Number of messages to retrieve is superior to 1, Number of samples should only show 1 not the number of messages retrieved
- 56809
  - JMSSampler closes InitialContext too early. Contributed by Bradford Hovinen (hovinen at gmail.com)
- 56761
  - JMeter tries to stop already stopped JMS connection and displays "The connection is closed"
- 57068
  - No error thrown when negative duration is entered in Test Action
- 57078
  - LagartoBasedHTMLParser fails to parse page that contains input with no type
- 57183
  - JMSSampler: For input string: "" java.lang.NumberFormatException (for Expiration or Priority fields)

### Controllers

- 56243
  - Foreach works incorrectly with indexes on subsequent iterations
- 56276
  - Loop controller becomes broken once loop count evaluates to zero
- 56160
  - StackOverflowError when using WhileController within IfController
- 56811
  - "Start Next Thread Loop" in Result Status Action Handler or on Thread Group and "Go to next Loop iteration" in Test Action behave incorrectly with TransactionController that has "Generate Parent Sampler" checked

### Listeners

- 56706
  - SampleResult#getResponseDataAsString() does not use encoding in response body impacting PostProcessors and ViewResultsTree. Contributed by Ubik Load Pack (support at ubikloadpack.com)
- 57052
  - ArithmeticException: / by zero when sampleCount is equal to 0

### Timers, Assertions, Config, Pre- & Post-Processors

- 56162
  - HTTP Cache Manager should not cache PUT/POST etc.
- 56227
  - AssertionGUI : NPE in assertion on mouse selection
- 41319
  - URLRewritingModifier : Allow Parameter value to be url encoded

### Functions

### I18N

- 56111
  - "comments" in german translation is not correct

### General

- 56059
  - Older TestBeans incompatible with 2.11 when using TextAreaEditor
- 56080
  - Conversion error com.thoughtworks.xstream.converters.ConversionException with Java 8 Early Access Build
- 56182
  - Can't trigger bsh script using bshclient.jar; socket is closed unexpectedly
- 56360
  - HashTree and ListedHashTree fail to compile with Java 8
- 56419
  - JMeter silently fails to save results
- 56662
  - Save as xml in a listener is not remembered
- 56367
  - JMeter 2.11 on maven central triggers a not existing dependency rsyntaxtextarea 2.5.1, upgrade to 2.5.3
- 56743
  - Wrong mailing list archives on mail2.xml. Contributed by Felix Schumacher (felix.schumacher at internetallee.de)
- 56763
  - Removing the Oracle icons, not used by JMeter (and missing license)
- 54100
  - Switching languages fails to preserve toolbar button states (enabled/disabled)
- 54648
  - JMeter GUI on OS X crashes when using CMD+C (keyboard shortcut or UI menu entry) on an element from the tree
- 56962
  - JMS GUIs should disable all fields affected by jndi.properties checkbox
- 57061
  - Save as Test Fragment fails to clone deeply selected node. Contributed by Ubik Load Pack (support at ubikloadpack.com)
- 57075
  - BeanInfoSupport.MULTILINE attribute is not processed
- 57076
  - BooleanPropertyEditor#getAsText() must return a value that is in getTags()
- 57088
  - NPE in ResultCollector.testEnded

Improvements

### HTTP Samplers and Test Script Recorder

- 55959
  - Improve error message when Test Script Recorder fails due to I/O problem
- 52013
  - Test Script Recorder's Child View Results Tree does not take into account Test Script Recorder excluded/included URLs. Based on report and analysis of James Liang
- 56119
  - File uploads fail every other attempt using timers. Enable idle timeouts for servers that don't send Keep-Alive headers.
- 56272
  - MirrorServer should support query parameters for status and redirects
- 56772
  - Handle IE Conditional comments when parsing embedded resources
- 57026
  - HTTP(S) Test Script Recorder : Better default settings. Contributed by Ubik Load Pack (support at ubikloadpack.com)
- 57107
  - Patch proposal: Add DAV verbs to HTTP Sampler. Contributed by Philippe Jung (apache at famille-jung.fr)
- 56357
  - Certificates does not conform to algorithm constraints: Adding a note to indicate how to remove of the Java installation these new security constraints

### Other samplers

- 56033
  - Add Connection timeout and Read timeout to SMTP Sampler
- 56429
  - MailReaderSampler - no need to fetch all Messages if not all wanted
- 56427
  - MailReaderSampler enhancement: read message header only
- 56510
  - JMS Publisher/Point to Point: Add JMSPriority and JMSExpiration

### Controllers

- 56728
  - New Critical Section Controller to serialize blocks of a Test. Based partly on a patch contributed by Mikhail Epikhin(epihin-m at yandex.ru)
- 57145
  - RandomController : Use ThreadLocalRandom instead of Random for better performances

### Listeners

- 56228
  - View Results Tree : Improve ergonomy by changing placement of Renderers and allowing custom ordering
- 56349
  - "summary" is a bad name for a Generate Summary Results component, documentation clarified
- 56769
  - Adds the ability for the Response Time Graph listener to save/restore format settings in/from the jmx file
- 57025
  - SaveService : Better defaults, save thread counts by default

### Timers, Assertions, Config, Pre- & Post-Processors

- 56691
  - Synchronizing Timer : Add timeout on waiting
- 56701
  - HTTP Authorization Manager/ Kerberos Authentication: add port to SPN when server port is neither 80 nor 443. Based on patches from Dan Haughey (dan.haughey at swinton.co.uk) and Felix Schumacher (felix.schumacher at internetallee.de)
- 56841
  - New configuration element: DNS Cache Manager to improve the testing of CDN. Based on patch from Dzmitry Kashlach (dzmitrykashlach at gmail.com), and contributed by BlazeMeter Ltd.
- 52061
  - Allow access to Request Headers in Regex Extractor. Based on patch from Dzmitry Kashlach (dzmitrykashlach at gmail.com), and contributed by BlazeMeter Ltd.

### Functions

- 56708
  - __jexl2 doesn't scale with multiple CPU cores. Based on analysis and patch contributed by Mikhail Epikhin(epihin-m at yandex.ru)
- 57114
  - Performance : Functions that only have values as instance variable should not synchronize execute. Based on analysis by Ubik Load Pack support and Vladimir Sitnikov, patch contributed by Vladimir Sitnikov (sitnikov.vladimir at gmail.com)

### I18N

### General

- 21695
  - Unix jmeter start script assumes it is on PATH, not a link
- 56292
  - Add the check of the Java's version in startup files and disable some options when is Java v8 engine
- 56298
  - JSR223 language display does not show which engine will be used
- 56455
  - Batch files: drop support for non-NT Windows shell scripts
- 52707
  - Make Open File dialog use last opened file folder as start folder. Based on patch from Dzmitry Kashlach (dzmitrykashlach at gmail.com), and contributed by BlazeMeter Ltd.
- 56807
  - Ability to force flush of ResultCollector file. Contributed by Andrey Pohilko (apc4 at ya.ru)
- 56921
  - Templates : Improve Recording template to ignore embedded resources case and URL parameters. Contributed by Ubik Load Pack (support at ubikloadpack.com)
- 42248
  - Undo-redo support on Test Plan tree modification. Developed by Andrey Pohilko (apc4 at ya.ru) and contributed by BlazeMeter Ltd. Additional contribution by Ubik Load Pack (support at ubikloadpack.com)
- 56920
  - LogViewer : Make it receive all log events even when it is closed. Contributed by Ubik Load Pack (support at ubikloadpack.com)
- 57083
  - simplified the CachedResourceMode enum. Contributed by Graham Russel (graham at ham1.co.uk)
- 57082
  - ComboStringEditor : Added hashCode to an inner class which overwrote equals. Contributed by Graham Russel (graham at ham1.co.uk)
- 57081
  - Updating checkstyle to only check for tabs in java, xml, xsd, dtd, htm, html and txt files (not images!). Contributed by Graham Russell (graham at ham1.co.uk)
- 56178
  - Really replace backslashes in user name before generating proxy certificate. Contributed by Graham Russel (graham at ham1.co.uk)
- 57084
  - Close socket after usage in BeanShellClient. Contributed by Graham Russel (graham at ham1.co.uk)

Non-functional changes

- 57117
  - Increase the default cipher for HTTPS Test Script Recorder from SSLv3 to TLS
- Updated to commons-lang3 3.3.2 (from 3.1)
- Updated to commons-codec 1.9 (from 1.8)
- Updated to commons-logging 1.2 (from 1.1.3)
- Updated to tika 1.6 (from 1.4)
- Updated to xercesImpl 2.11.0 (from 2.9.1)
- Updated to xml-apis 1.4.01 (from 1.3.04)
- Updated to xstream 1.4.8 (from 1.4.4)
- Updated to jodd 3.6.1 (from 3.4.10)
- Updated to rsyntaxtextarea 2.5.3 (from 2.5.1)
- Updated xalan and serializer to 2.7.2 (from 2.7.1)
- Updated to jsoup-1.8.1.jar (from 1.7.3)

Thanks

We thank all contributors mentioned in bug and improvement sections above:

- James Liang (jliang at andera.com)
- Emmanuel Bourg (ebourg at apache.org)
- Nicola Ambrosetti (ambrosetti.nicola at gmail.com)
- Ubik Load Pack
- Mikhail Epikhin (epihin-m at yandex.ru)
- Dan Haughey (dan.haughey at swinton.co.uk)
- Felix Schumacher (felix.schumacher at internetallee.de)
- Dzmitry Kashlach (dzmitrykashlach at gmail.com)
- Andrey Pohilko (apc4 at ya.ru)
- Bradford Hovinen (hovinen at gmail.com)
- BlazeMeter Ltd.
- Graham Russell (graham at ham1.co.uk)
- Philippe Jung (apache at famille-jung.fr)
- Vladimir Sitnikov (sitnikov.vladimir at gmail.com)

We also thank bug reporters who helped us improve JMeter.
For this release we want to give special thanks to the following reporters for the clear reports and tests made after our fixes:

- Oliver LLoyd (email at oliverlloyd.com) for his help on 56119
- Vladimir Ryabtsev (greatvovan at gmail.com) for his help on 56243 and 56276
- Adrian Speteanu (asp.adieu at gmail.com) and Matt Kilbride (matt.kilbride at gmail.com) for their feedback and tests on 54648
- Shmuel Krakower (shmulikk at gmail.com) for his tests and reports on Undo/Redo feature

Apologies if we have omitted anyone else.

# Version 2.11

Summary

- New and Noteworthy
- Known bugs
- Incompatible changes
- Bug fixes
- Improvements
- Non-functional changes
- Thanks

New and Noteworthy
HTTP(S) Test Script Recorder improvements

Following improvements have been made since major changes introduced in JMeter 2.10 on HTTP(S) Test Script Recorder:

- Better detection of missing or invalid configuration of keytool utility
- New system property `keytool.directory` (see `system.properties`) lets you configure directory containing keytool in case on non-standard installation

JMS Publisher/Point to Point : Add ability to set typed values in JMS header properties

In the samplers JMS Publisher and JMS Point-to-Point, you can now set up the class of values for the JMS header properties. Previously only String was possible.

View Results Tree : Add an XPath Tester

In View Results Tree listener, a new XPath tester can be used to test XPATH expressions.

Ability to choose the client alias for the cert key in JsseSslManager such that Mutual SSL auth testing can be made more flexible

When testing client based certificate authentications you have now better control on certificate you use through a new field "Variable name holding certificate alias", this field lets you select the certificate you want to send to server to authenticate. You can use a CSV Data Set as a holder for the variable value.

Add a "Save as Test Fragment" option

In the file menu, a new option allow to save a group of elements as a Test fragment.

Summariser is be enabled by default in Non GUI mode

When you run JMeter from command line, now JMeter displays some statistics from the Summariser mode.

Transaction Controller:Change default property "Include duration of timer&hellip;" for newly created element

Starting from 2.11, Transaction Controller is configured by default to exclude processing time of pre/post processors as long as timers pause.

Known bugs

- The Once Only controller behaves correctly under a Thread Group or Loop Controller, but otherwise its behaviour is not consistent (or clearly specified).
- Listeners don't show iteration counts when a If Controller has a condition which is always false from the first iteration (see 52496). A workaround is to add a sampler at the same level as (or superior to) the If Controller. For example a Test Action sampler with 0 wait time (which doesn't generate a sample), or a Debug Sampler with all fields set to False (to reduce the sample size).
- The numbers that appear to the left of the green box are the number of active threads / total number of threads, the total number of threads only applies to a locally run test, otherwise it will show 0 (see 55510).
- Note that there is a bug in Java on some Linux systems that manifests itself as the following error when running the test cases or JMeter itself:

       [java] WARNING: Couldn't flush user prefs:
       java.util.prefs.BackingStoreException:
       java.lang.IllegalArgumentException: Not supported: indent-number

  This does not affect JMeter operation. This issue is fixed since Java 7b05.
- With Java 1.6 and Gnome 3 on Linux systems, the JMeter menu may not work correctly (shift between mouse's click and the menu). This is a known Java bug (see 54477 ). A workaround is to use a Java 7 runtime (OpenJDK or Oracle JDK).
- With Oracle Java 7 and Mac Book Pro Retina Display, the JMeter GUI may look blurry. This is a known Java bug, see Bug JDK-8000629. A workaround is to use a Java 7 update 40 runtime which fixes this issue.

Incompatible changes

- When creating a new Transaction Controller, property "Include duration of timer and pre-post processors in generated sample" will be unchecked starting from version 2.11
- In Non GUI mode, since 2.11 summariser is enabled with a 30 seconds frequency
- JMeter is more lenient with redirect handling and relaxes on RFC2616 by allowing relative locations. See property "`jmeter.httpclient.strict_rfc2616`" in `jmeter.properties` to change this behaviour, see 55717
- When creating a new Response Assertion, property "Pattern Matching Rules" now defaults to Substring starting from version 2.11

Bug fixes

### HTTP Samplers and Test Script Recorder

- 55815
  - Proxy#getDomainMatch does not handle wildcards correctly
- 55717
  - Bad handling of Redirect when URLs are in relative format by HttpClient4 and HttpClient3.1

### Other Samplers

- 55685
  - OS Sampler: timeout option don't save and restore correctly value and don't init correctly timeout

### Controllers

- 55816
  - Transaction Controller with "Include duration of timer&hellip;" unchecked does not ignore processing time of last child sampler

### Listeners

- 55826
  - Unsynchronised concurrent accesses to list in field RespTimeGraphVisualizer.internalList

### Timers, Assertions, Config, Pre- & Post-Processors

- 55694
  - Assertions and Extractors : Avoid NullPointerException when scope is variable and variable is missing
- 55721
  - HTTP Cache Manager - no-store directive is wrongly interpreted

### Functions

- 55871
  - Wrong result with intSum() function when a space character is present before/after the number. Contributed by Milamber based on a proposal by James Liang.

### I18N

### General

- 55739
  - Remote Test : Total threads in GUI mode shows invalid total number of threads

Improvements

### HTTP Samplers and Proxy

### Other samplers

- 55589
  - JMS Publisher/Point to Point : Add ability to set typed values in JMS header properties.

### Controllers

- 55854
  - Transaction Controller:Change default property "Include duration of timer&hellip;" for newly created element

### Listeners

- 55610
  - View Results Tree : Add an XPath Tester

### Timers, Assertions, Config, Pre- & Post-Processors

- 55908
  - Response assertion : Change Pattern Matching Rules default to Substring on creation for better performances
- 54977
  - Ability to choose the client alias for the cert key in JsseSslManager such that Mutual SSL auth testing can be made more flexible. Contributed by UBIK Load Pack (support at ubikloadpack.com)

### Functions

### I18N

### General

- 55693
  - Add a "Save as Test Fragment" option
- 55753
  - Improve FilePanel behaviour to start from the value set in Filename field if any. Contributed by UBIK Load Pack (support at ubikloadpack.com)
- 55756
  - HTTP Mirror Server : Add ability to set Headers
- 55852
  - Be more lenient in parsing when charset value is surrounded with single quotes
- 55857
  - Performance : AbstractProperty should test for emptiness to avoid Exception throwing
- 55858
  - Startup Performance : On Startup, BeanInfoSupport should test for key availability instead of throwing
- 55865
  - Performance :Disable stale check by default in HttpClient 4 and 3.1
- 55512
  - Summariser should be enabled by default in Non GUI mode

Non-functional changes

- Updated to rsyntaxtextarea-2.5.1.jar (from 2.5.0)
- Updated to jodd-core-3.4.9.jar from (3.4.8) and jodd-lagarto-3.4.9.jar (from 3.4.9)
- Updated to jsoup-1.7.3.jar (from 1.7.2)
- Updated to mail-1.5.0-b01 (from 1.4.4)
- Updated to mongo-java-driver-2.11.3 (from 2.11.2)

Thanks

We thank all contributors mentioned in bug and improvement sections above:

- James Liang (jliang at andera.com)
- UBIK Load Pack (support at ubikloadpack.com)

We also thank bug reporters who helped us improve JMeter.
For this release we want to give special thanks to the following reporters for the clear reports and tests made after our fixes:

- John Natsioulas (john_natsioulas at yahoo.com.au)
- Antonio Gomes Rodrigues (ra0077 at gmail.com)

Apologies if we have omitted anyone else.

# Version 2.10

Summary

- New and Noteworthy
- Known bugs
- Incompatible changes
- Bug fixes
- Improvements
- Non-functional changes
- Thanks

New and Noteworthy
Core Improvements
New Performance improvements

- A Huge performance improvement has been made on High Throughput Tests (no pause), see 54777
- An issue with unnecessary SSL Context reset has been fixed which improves performances of pure HTTP tests, see 55023
- Important performance improvement in parsing of Embedded resource in HTML pages thanks to a switch to JODD/Lagarto HTML Parser, see 55632

New CSS/JQuery Tester in View Tree Results

A new CSS/JQuery Tester in View Tree Results that makes CSS/JQuery Extractor a first class citizen in JMeter, you can now test your expressions very easily

Many improvements in HTTP(S) Recording have been made

The "HTTP Proxy Server" test element has been renamed as "HTTP(S) Test Script Recorder".

- Better recording of HTTPS sites, embedded resources using subdomains will more easily be recorded when using JDK 7. See 55507. See updated documentation:
- Redirection are now more smartly detected by HTTP Proxy Server, see 55531
- Many fixes on edge cases with HTTPS have been made, see 55502, 55504, 55506
- Many encoding fixes have been made, see 54482, 54142, 54293

You can now load test MongoDB through new MongoDB Source Config

Kerberos authentication has been added to Auth Manager

Device can now be used in addition to source IP address

You can now do functional testing of MongoDB scripts through new MongoDB Script

Timeout has been added to OS Process Sampler

Query timeout has been added to JDBC Request

New functions (__urlencode and __urldecode) are now available to encode/decode URL encoded chars

Continuous Integration is now eased by addition of a new flag that forces NON-GUI JVM to exit after test end

See jmeter property:

jmeterengine.force.system.exit

HttpSampler now allows DELETE Http Method to have a body (works for HC4 and HC31 implementations). This allows for example to test Elastic Search APIs

2 implementations of HtmlParser have been added to improve Embedded resources parsing

You can choose the implementation to use for parsing Embedded resources in HTML pages: See jmeter.properties and look at property "htmlParser.className".

- org.apache.jmeter.protocol.http.parser.LagartoBasedHtmlParser for optimal performances
- org.apache.jmeter.protocol.http.parser.JSoupBasedHtmlParser for most accurate parsing and functional testing

Distributed testing has been improved

- Number of threads on each node are now reported to controller.

- Performance improvement on BatchSampleSender(55423)
- Addition of 2 SampleSender modes (StrippedAsynch and StrippedDiskStore), see jmeter.properties

ModuleController has been improved to better handle changes to referenced controllers
Improved class loader configuration, see 55503

- New property "plugin_dependency_paths" for plugin dependencies
- Properties "search_paths", "user.classpath" and "plugin_dependency_paths" now automatically add all jars from configured directories

Best-practices section has been improved, ensure you read it to get the most out of JMeter

See Best Practices

GUI and ergonomy Improvements
New Templates feature that allows you to create test plan from existing template or merge template into your Test Plan

Workbench can now be saved

Syntax color has been added to scripts elements (BeanShell, BSF, and JSR223), MongoDB and JDBC elements making code much more readable and allowing UNDO/REDO through CTRL+Z/CTRL+Y

BSF Sampler with syntax color

JSR223 Pre Processor with syntax color

Better editors are now available for Test Elements with large text content, like HTTP Sampler, and JMS related Test Element providing line numbering and allowing UNDO/REDO through CTRL+Z/CTRL+Y
JMeter GUI can now be fully Internationalized, all remaining issues have been fixed

##### Currently French has all its labels translated. Other languages are partly translated, feel free to contribute translations by reading Localisation (Translator's Guide)

Moving elements in Test plan has been improved in many ways

##### Drag and drop of elements in Test Plan tree is now much easier and possible on multiple nodes

Note that due to this bug in Java, you cannot drop a node after last node. The workaround is to drop it before this last node and then Drag and Drop the last node before the one you just dropped.

##### New shortcuts have been added to move elements in the tree.

(alt + Arrow Up) and (alt + Arrow Down) move the element within the parent node
(alt + Arrow Left) and (alt + Arrow Right) move the element up and down in the tree depth

Response Time Graph Y axis can now be scaled

JUnit Sampler gives now more details on configuration errors
Known bugs

- The Once Only controller behaves correctly under a Thread Group or Loop Controller, but otherwise its behaviour is not consistent (or clearly specified).
- Listeners don't show iteration counts when a If Controller has a condition which is always false from the first iteration (see 52496). A workaround is to add a sampler at the same level as (or superior to) the If Controller. For example a Test Action sampler with 0 wait time (which doesn't generate a sample), or a Debug Sampler with all fields set to False (to reduce the sample size).
- Webservice sampler does not consider the HTTP response status to compute the status of a response, thus a response 500 containing a non empty body will be considered as successful, see 54006. To workaround this issue, ensure you always read the response and add a Response Assertion checking text inside the response.
- The numbers that appear to the left of the green box are the number of active threads / total number of threads, these only apply to a locally run test; they do not include any threads started on remote systems when using client-server mode, (see 54152).
- Note that there is a bug in Java on some Linux systems that manifests itself as the following error when running the test cases or JMeter itself:

       [java] WARNING: Couldn't flush user prefs:
       java.util.prefs.BackingStoreException:
       java.lang.IllegalArgumentException: Not supported: indent-number

  This does not affect JMeter operation. This issue is fixed since Java 7b05.
- With Java 1.6 and Gnome 3 on Linux systems, the JMeter menu may not work correctly (shift between mouse's click and the menu). This is a known Java bug (see 54477 ). A workaround is to use a Java 7 runtime (OpenJDK or Oracle JDK).
- With Oracle Java 7 and Mac Book Pro Retina Display, the JMeter GUI may look blurry. This is a known Java bug, see Bug JDK-8000629. A workaround is to use a Java 7 update 40 runtime which fixes this issue.

Incompatible changes

- SMTP Sampler now uses eml file subject if subject field is empty
- With this version autoFlush has been turned off on PrintWriter in charge of writing test results. This results in improved throughput for intensive tests but can result in more test data loss in case of JMeter crash (extremely rare). To revert to previous behaviour set `jmeter.save.saveservice.autoflush` property to `true`.
- Shortcut for Function Helper Dialog is now CTRL+SHIFT+F1 (CMD + SHIFT + F1 for Mac OS). The original key sequence (Ctrl+F1) did not work in some locations (it is consumed by the Java Swing ToolTipManager). It was therefore necessary to change the shortcut.
- Webservice (SOAP) Request has been removed by default from GUI as Element is deprecated. (Use HTTP Request with Body Data, see also the Template Building a SOAP Webservice Test Plan), if you need to show it, see property `not_in_menu` in jmeter.properties
- Transaction Controller now sets Response Code of Generated Parent Sampler (if Generated Parent Sampler is checked) to response code of first failing child in case of failure of one of the children, in previous versions Response Code was empty.
- In previous versions, IncludeController could run Test Elements located inside a Thread Group, this behaviour (which was not documented) could result in weird behaviour, it has been removed in this version (see 55464). The correct way to include Test Elements is to use Test Fragment as stated in documentation of Include Controller.
- The retry count for the HttpClient 3.1 and HttpClient 4.x samplers has been changed to 0. Previously the default was 1, which could cause unexpected additional traffic.
- Starting with this version, the HTTP(S) Test Script Recorder tries to detect when a sample is the result of a previous redirect. If the current response is a redirect, JMeter will save the redirect URL. When the next request is received, it is compared with the saved redirect URL and if there is a match, JMeter will disable the generated sample. To revert to previous behaviour, set the property `proxy.redirect.disabling=false`
- Starting with this version, in HTTP(S) Test Script Recorder if Grouping is set to Put each group in a new Transaction Controller, the Recorder will create Transaction Controller instances with Include duration of timer and pre-post processors in generated sample set to false. This default value reflect more accurately response time.
- `__escapeOroRegexpChars` function (which escapes ORO reserved characters) no longer trims the value (see 55328)
- The commons-lang-2.6.jar has been removed from embedded libraries in `jmeter/lib` folder as it is not needed by JMeter at run-time (it is only used by Apache Velocity for generating documentation). If you use any plugin or third-party code that depends on it, you need to add it in `jmeter/lib` folder

Bug fixes

### HTTP Samplers and Proxy

- 54627
  - JMeter Proxy GUI: Type of sampler setting takes the whole screen when there are samplers with long names.
- 54629
  - HTMLParser does not extract <object> tag urls.
- 55023
  - SSL Context reuse feature (51380) adversely affects non-ssl request performance/throughput. based on analysis by Brent Cromarty (brent.cromarty at yahoo.ca)
- 55092
  - Log message "WARN - jmeter.protocol.http.sampler.HTTPSamplerBase: Null URL detected (should not happen)" displayed when embedded resource URL is malformed.
- 55161
  - Useless processing in SoapSampler.setPostHeaders. Contributed by Adrian Nistor (nistor1 at illinois.edu)
- 54482
  - HC fails to follow redirects with non-encoded chars.
- 54142
  - HTTP Proxy Server throws an exception when path contains "|" character.
- 55388
  - HC3 does not allow IP Source field to override httpclient.localaddress.
- 55450
  - HEAD redirects should remain as HEAD
- 55455
  - HTTPS with HTTPClient4 ignores cps setting
- 55502
  - Proxy generates empty http:/ entries when recording
- 55504
  - Proxy incorrectly issues CONNECT requests when browser prompts for certificate override
- 55506
  - Proxy should deliver failed requests to any configured Listeners
- 55545
  - HTTP Proxy Server GUI should not allow both Follow and Auto redirect to be selected

### Other Samplers

- 54913
  - JMSPublisherGui incorrectly restores its state. Contributed by Benoit Wiart (benoit.wiart at gmail.com)
- 55027
  - Test Action regression, duration value is not recorded (nightly build).
- 55163
  - BeanShellTestElement fails to quote string when calling testStarted(String)/testEnded(String).
- 55349
  - NativeCommand hangs if no input file is specified and the application requests input.
- 55462
  - System Sampler should not change the sampler label if a sample fails

### Controllers

- 54467
  - Loop Controller: compute loop value only once per parent iteration.
- 54985
  - Make Transaction Controller set Response Code of Generated Parent Sampler to response code of first failing child in case of failure of one of its children. Contributed by Mikhail Epikhin (epihin-m at yandex.ru)
- 54950
  - ModuleController : Changes to referenced Module are not taken into account if changes occur after first run and referenced node is disabled.
- 55201
  - ForEach controller excludes start index and includes end index (clarified documentation).
- 55334
  - Adding Include Controller to test plan (made of Include Controllers) without saving TestPlan leads to included code not being taken into account until save.
- 55375
  - StackOverflowError with ModuleController in Non-GUI mode if its name is the same as the target node.
- 55464
  - Include Controller running included thread group

### Listeners

- 54589
  - View Results Tree have a lot of Garbage characters if html page uses double-byte charset.
- 54753
  - StringIndexOutOfBoundsException at SampleResult.getSampleLabel() if key_on_threadname=false when using Statistical mode.
- 54685
  - ArrayIndexOutOfBoundsException if "sample_variable" is set in client but not server.
- 55111
  - ViewResultsTree: text not refitted if vertical scrollbar is required. Contributed by Milamber

### Timers, Assertions, Config, Pre- & Post-Processors

- 54540
  - "HTML Parameter Mask" are not marked deprecated in the IHM.
- 54575
  - CSS/JQuery Extractor : Choosing JODD Implementation always uses JSOUP.
- 54901
  - Response Assertion GUI behaves weirdly.
- 54924
  - XMLAssertion uses JMeter JVM file.encoding instead of response encoding and does not clean threadlocal variable.
- 53679
  - Constant Throughput Timer bug with localization. Reported by Ludovic Garcia

### Functions

- 55328
  - __escapeOroRegexpChars trims spaces.

### I18N

- 55437
  - ComboStringEditor does not translate EDIT and UNDEFINED strings on language change
- 55501
  - Incorrect encoding for French description of __char function. Contributed by Antonio Gomes Rodrigues (ra0077 at gmail.com)

### General

- 54504
  - Resource string not found: [clipboard_node_read_error].
- 54538
  - GUI: context menu is too big.
- 54847
  - Cut & Paste is broken with tree multi-selection. Contributed by Benoit Wiart (benoit.wiart at gmail.com)
- 54870
  - Tree drag and drop may lose leaf nodes (affected nightly build). Contributed by Benoit Wiart (benoit.wiart at gmail.com)
- 55056
  - wasted work in Data.append(). Contributed by Adrian Nistor (nistor1 at illinois.edu)
- 55129
  - Change Javadoc generation per CVE-2013-1571, VU#225657.
- 55187
  - Integer overflow when computing ONE_YEAR_MS in HTTP CacheManager.
- 55208
  - JSR223 language entries are duplicated; fold to lower case.
- 55203
  - TestBeanGUI - wrong language settings found.
- 55065
  - Useless processing in Spline3.converge(). Contributed by Adrian Nistor (nistor1 at illinois.edu)
- 55064
  - Useless processing in ReportTreeListener.isValidDragAction(). Contributed by Adrian Nistor (nistor1 at illinois.edu)
- 55242
  - BeanShell Client jar throws exceptions after upgrading to 2.8.
- 55288
  - JMeter should default to 0 retries for HTTP requests.
- 55405
  - ant download_jars task fails if lib/api or lib/doc are missing. Contributed by Antonio Gomes Rodrigues.
- 55427
  - TestBeanHelper should ignore properties not supported by GenericTestBeanCustomizer
- 55459
  - Elements using ComboStringEditor lose the input value if user selects another Test Element
- 54152
  - In distributed testing : activeThreads always show 0 in GUI and Summariser
- 55509
  - Allow Plugins to be notified of remote thread number progression
- 55572
  - Detail popup of parameter does not show a Scrollbar when content exceeds display
- 55580
  - Help pane does not scroll to start for <a href="#"> links
- 55600
  - JSyntaxTextArea : Strange behaviour on first undo
- 55655
  - NullPointerException when Remote stopping /shutdown all if one engine did not start correctly. Contributed by UBIK Load Pack (support at ubikloadpack.com)
- 55657
  - Remote and Local Stop/Shutdown buttons state does not take into account local / remote status

Improvements

### HTTP Samplers and Proxy

- HTTP Request: Small user interaction improvements in Row parameter Detail Box. Contributed by Milamber
- 55255
  - Allow Body in HTTP DELETE method to support API that use it (like ElasticSearch).
- 53480
  - Add Kerberos support to Http Sampler (HttpClient4). Based on patch by Felix Schumacher (felix.schumacher at internetallee.de)
- 54874
  - Support device in addition to source IP address. Based on patch by Dan Fruehauf (malkodan at gmail.com)
- 55488
  - Add .ico and .woff file extension to default suggested exclusions in proxy recorder. Contributed by Antonio Gomes Rodrigues
- 55525
  - Proxy should support alias for keyserver entry
- 55531
  - Proxy recording and redirects. Added code to disable redirected samples.
- 55507
  - Proxy SSL recording does not handle external embedded resources well
- 55632
  - Have a new implementation of htmlParser for embedded resources parsing with better performances
- 55653
  - HTTP(S) Test Script Recorder should set TransactionController property "Include duration of timer and pre-post processors in generated sample" to false

### Other samplers

- 54788
  - JMS Point-to-Point Sampler - GUI enhancements to increase readability and ease of use. Contributed by Bruno Antunes (b.m.antunes at gmail.com)
- 54798
  - Using subject from EML-file for SMTP Sampler. Contributed by Mikhail Epikhin (epihin-m at yandex.ru)
- 54759
  - SSLPeerUnverifiedException using HTTPS , property documented.
- 54896
  - JUnit sampler gives only "failed to create an instance of the class" message with constructor problems.
- 55084
  - Add timeout support for JDBC Request. Contributed by Mikhail Epikhin (epihin-m at yandex.ru)
- 55403
  - Enhancement to OS sampler: Support for timeout
- 55518
  - Add ability to limit number of cached PreparedStatements per connection when "Prepared Select Statement", "Prepared Update Statement" or "Callable Statement" query type is selected

### Controllers

- 54271
  - Module Controller breaks if test plan is renamed.

### Listeners

- 54532
  - Improve Response Time Graph Y axis scale with huge values or small values (< 1000ms). Add a new field to define increment scale. Contributed by Milamber based on patch by Luca Maragnani (luca.maragnani at gmail.com)
- 54576
  - View Results Tree : Add a CSS/JQuery Tester.
- 54777
  - Improve Performance of default ResultCollector. Based on patch by Mikhail Epikhin (epihin-m at yandex.ru)
- 55389
  - Show IP source address in request data

### Timers, Assertions, Config, Pre- & Post-Processors

- 54789
  - XPath Assertion - GUI enhancements to increase readability and ease of use.

### Functions

- 54991
  - Add functions to encode/decode URL encoded chars (__urlencode and __urldecode). Contributed by Milamber.

### I18N

- 55241
  - Need GUI Editor to process fields which are based on Enums with localised display strings
- 55440
  - ComboStringEditor should allow tags to be language dependent
- 55432
  - CSV Dataset Config loses sharing mode when switching languages

### General

- 54584
  - MongoDB plugin. Based on patch by Jan Paul Ettles (janpaulettles at gmail.com)
- 54669
  - Add flag forcing non-GUI JVM to exit after test. Contributed by Scott Emmons
- 42428
  - Workbench not saved with Test Plan. Contributed by Dzmitry Kashlach (dzmitrykashlach at gmail.com)
- 54825
  - Add shortcuts to move elements in the tree. Contributed by Benoit Wiart (benoit.wiart at gmail.com)
- 54834
  - Improve Drag & Drop in the jmeter tree. Contributed by Benoit Wiart (benoit.wiart at gmail.com)
- 54839
  - Set the application name on Mac. Contributed by Benoit Wiart (benoit.wiart at gmail.com)
- 54841
  - Correctly handle the quit shortcut on Mac Os (CMD-Q). Contributed by Benoit Wiart (benoit.wiart at gmail.com)
- 54844
  - Set the application icon on Mac Os. Contributed by Benoit Wiart (benoit.wiart at gmail.com)
- 54864
  - Enable multi selection drag & drop in the tree without having to start dragging before releasing Shift or Control. Contributed by Benoit Wiart (benoit.wiart at gmail.com)
- 54945
  - Add Shutdown Hook to enable trapping kill or CTRL+C signals.
- 54990
  - Download large files avoiding outOfMemory.
- 55085
  - UX Improvement : Ability to create New Test Plan from Templates. Contributed by UBIK Load Pack (support at ubikloadpack.com)
- 55172
  - Provide plugins a way to add Top Menu and menu items.
- 55202
  - Add syntax color for scripts elements (BeanShell, BSF, and JSR223) and JDBC elements with RSyntaxTextArea. Contributed by Milamber based on patch by Marko Vlahovic (vlahovic74 at gmail.com)
- 55175
  - HTTPHC4Impl refactoring to allow better inheritance.
- 55236
  - Templates - provide button to reload template details.
- 55237
  - Template system should support relative fileName entries.
- 55423
  - BatchSampleSender: Reduce locking granularity by moving listener.processBatch outside of synchronized block
- 55424
  - Add Stripping to existing SampleSenders
- 55451
  - Test Element GUI with JSyntaxTextArea scroll down when text content is long enough to add a Scrollbar
- 55513
  - StreamCopier cannot be used with System.err or System.out as it closes the output stream
- 55514
  - SystemCommand should support arbitrary input and output streams
- 55515
  - SystemCommand should support chaining of commands
- 55606
  - Use JSyntaxtTextArea for Http Request, JMS Test Elements
- 55651
  - Change JMeter application icon to Apache plume icon

Non-functional changes

- Updated to jsoup-1.7.2
- 54776
  - Update the dependency on Bouncy Castle to 1.48. Contributed by Emmanuel Bourg (ebourg at apache.org)
- Updated to HttpComponents Client 4.2.6 (from 4.2.3)
- Updated to HttpComponents Core 4.2.5 (from 4.2.3)
- Updated to commons-codec 1.8 (from 1.6)
- Updated to commons-io 2.4 (from 2.2)
- Updated to commons-logging 1.1.3 (from 1.1.1)
- Updated to commons-net 3.3 (from 3.1)
- Updated to jdom-1.1.3 (from 1.1.2)
- Updated to jodd-lagarto and jodd-core 3.4.8 (from 3.4.1)
- Updated to junit 4.11 (from 4.10)
- Updated to slf4j-api 1.7.5 (from 1.7.2)
- Updated to tika 1.4 (from 1.3)
- Updated to xmlgraphics-commons 1.5 (from 1.3.1)
- Updated to xstream 1.4.4 (from 1.4.2)
- Updated to BouncyCastle 1.49 (from 1.48)
- 54912
  - JMeterTreeListener should use constants. Contributed by Benoit Wiart (benoit.wiart at gmail.com)
- 54903
  - Remove the dependency on the Activation Framework. Contributed by Emmanuel Bourg (ebourg at apache.org)
- Moved commons-lang (2.6) to lib/doc as it's only needed by Velocity.
- Re-organised and simplified NOTICE and LICENSE files.
- 55411
  - NativeCommand could be useful elsewhere. Copied code to o.a.jorphan.exec.
- 55435
  - ComboStringEditor could be simplified to make most settings final
- 55436
  - ComboStringEditor should implement ClearGui
- 55463
  - Component.requestFocus() is discouraged; use requestFocusInWindow() instead
- 55486
  - New JMeter Logo. Contributed by UBIK Load Pack (support at ubikloadpack.com)
- 55548
  - Tidy up use of TestElement.ENABLED; use TestElement.isEnabled()/setEnabled() throughout
- 55617
  - Improvements to jorphan collection. Contributed by Benoit Wiart (benoit.wiart at gmail.com)
- 55623
  - Invalid/unexpected configuration values should not be silently ignored
- 55626
  - Rename HTTP Proxy Server as HTTP(S) Test Script Recorder

Thanks

We thank all contributors mentioned in bug and improvement sections above:

- Bruno Antunes (b.m.antunes at gmail.com)
- Emmanuel Bourg (ebourg at apache.org)
- Scott Emmons
- Mikhail Epikhin (epihin-m at yandex.ru)
- Dzmitry Kashlach (dzmitrykashlach at gmail.com)
- Luca Maragnani (luca.maragnani at gmail.com)
- Milamber
- Adrian Nistor (nistor1 at illinois.edu)
- Antonio Gomes Rodrigues (ra0077 at gmail.com)
- UBIK Load Pack (support at ubikloadpack.com)
- Benoit Wiart (benoit.wiart at gmail.com)

We also thank bug reporters who helped us improve JMeter.
For this release we want to give special thanks to the following reporters for the clear reports and tests made after our fixes:

- Immanuel Hayden (immanuel.hayden at gmail.com)
- Danny Lade (dlade at web.de)
- Brent Cromarty (brent.cromarty at yahoo.ca)
- Wolfgang Heider (wolfgang.heider at racon.at)
- Shmuel Krakower (shmulikk at gmail.com)

Apologies if we have omitted anyone else.

# Version 2.9

## New and Noteworthy

### Core Improvements:

#### * A new Extractor that uses CSS or jquery-like selector syntax has been introduced, it allows using either JODD or JSOUP implementations

Result: the title of the page in a JMeter variable

#### * JMeter can now handle different types of documents (PDF, MsOffice files, Apache OpenOffice's files, &hellip;) within different elements

- Regular Expression Extractor, extract text from documents
- Assertion Response, check text in documents
- View Results Tree, view as a text the documents

#### * A new Regex User Parameters Pre-Processor that enables injecting input parameter names and values using a reference extracted by Regular Expression Extractor from a previous response

#### * TCP Sampler: new options

TCP Sampler has been enhanced with new options to allow setting Close Connection, SO_LINGER and End of line(EOL) byte value

#### * A new function __escapeOroRegexpChars(,) has been introduced quote ORO regexp meta characters

#### * ForEach Controller: new fields

ForEach Controller has now 2 new fields to control start and end of loop

#### * Result Status Action Handler now has a new option to "Start next thread loop"

#### * JMS Publisher: new option

JMS Publisher can now send Bytes Messages

#### * Memory and performance improvements

Significant improvements have been done in this version on memory usage per Thread and CPU when more than one Post Processor is used as child of a Sampler

JSR223 Elements (enable using Groovy, Scala, &hellip; as scripting languages) have been improved to enable caching of Compilation results when scripts are passed in Text area

Some configuration defaults have changed to improve performances by default(see 54412), see description in New and Noteworthy section.

- Distributed testing now uses MODE_STRIPPED_BATCH, which returns samples in batch mode (every 100 samples or every minute by default). Note also that MODE_STRIPPED_BATCH strips response data from SampleResult, so if you need it change to another mode (mode property in jmeter.properties)
- Result data are now saved to CSV by default (jmeter.save.saveservice.output_format in jmeter.properties)

#### * XPath Assertion now enables using a JMeter variable as input

### GUI and ergonomy Improvements:

#### * Search feature has been improved to search within more internal fields of elements and expand search results

#### * Copy/paste is now possible between 2 JMeter instances >= 2.9 version

Copy element(s) from one JMeter instance:

Paste element(s) into a second JMeter instance:

#### * HTTP Header Manager

Allow copy from clipboard to HeaderPanel, headers are supposed to be separated by new line and have the following form name:value

#### * Module Controller

Module Controller has been improved to better render referenced controller and expand it by clicking on a new button

#### * HTTP Proxy Server

HTTP Proxy Server now has a button to add a set of default exclusions for URL patterns, this list can be configured through property : proxy.excludes.suggested

#### * Rendering of target controller has been improved in HTTP Proxy Server

### HTTP Proxy Server recording:

* HTTP Proxy Server now automatically uses HTTP Request with Raw Post Body mode for samples that only have one unnamed argument (JSON, XML, GWT, &hellip;)

* HTTP Proxy Server does not force user to select the type of Sampler in HTTP Sampler Settings, this allows easier switch between implementations as Sampler do not have this information set anymore

* SamplerCreator interface has been enriched to meet new requirements for plug-in providers

* It is now possible to create binary sampler for x-www-form-urlencoded POST request by modifying proxy.binary.types property to add application/x-www-form-urlencoded

* Improved timestamp format auto-detection when reading CSV files

## Known bugs

The Once Only controller behaves correctly under a Thread Group or Loop Controller, but otherwise its behaviour is not consistent (or clearly specified).

Listeners don't show iteration counts when a If Controller has a condition which is always false from the first iteration (see 52496). A workaround is to add a sampler at the same level as (or superior to) the If Controller. For example a Test Action sampler with 0 wait time (which doesn't generate a sample), or a Debug Sampler with all fields set to False (to reduce the sample size).

Webservice sampler does not consider the HTTP response status to compute the status of a response, thus a response 500 containing a non empty body will be considered as successful, see 54006. To workaround this issue, ensure you always read the response and add a Response Assertion checking text inside the response.

Changing language can break part of the configuration of the following elements (see 53679):

- CSV Data Set Config (sharing mode will be lost)
- Constant Throughput Timer (Calculate throughput based on will be lost)

The numbers that appear to the left of the green box are the number of active threads / total number of threads, these only apply to a locally run test; they do not include any threads started on remote systems when using client-server mode, (see 54152).

Note that there is a bug in Java on some Linux systems that manifests itself as the following error when running the test cases or JMeter itself:

     [java] WARNING: Couldn't flush user prefs:
     java.util.prefs.BackingStoreException:
     java.lang.IllegalArgumentException: Not supported: indent-number

This does not affect JMeter operation.

## Incompatible changes

JMeter requires now a Java 6 runtime or higher.

Some configuration defaults have changed to improve performances by default (see 54412), see description in New and Noteworthy section.

Webservice sampler now adds to request the headers that are set through Header Manager, these were previously ignored

jdbcsampler.cachesize property has been removed, it previously limited the size of a per connection cache of Map < String, PreparedStatement > , it also limited the size of this map which held the PreparedStatement for SQL queries. This limitation provoked a bug 53995. It has been removed so now size of these 2 maps is not limited anymore. This change changes behaviour as starting from this version no PreparedStatement will be closed during the test.

Starting with this version, there are some important changes on JSR223 Test Elements:

- JSR223 Test Elements that have an invalid filename (not existing or unreadable) will make test fail instead of making the element silently work
- In JSR223 Test Elements: responseCodeOk, responseMessageOK and successful are set before script is executed, if responseData is set it will not be overridden anymore by a toString() on script return value

View Results Tree now considers response with missing content type as text.

In remote Test mode, JMeter now exits in error if one of the remote engines cannot be configured, previously it started the test with available engines.

## Bug fixes

### HTTP Samplers and Proxy

- Don't log spurious warning messages when using concurrent pool embedded downloads with Cache Manager or CookieManager
- 54057
  - Proxy option to set user and password at startup (-u and -a) not working with HTTPClient 4
- 54187
  - Request tab does not show headers if request fails
- 53840
  - Proxy Recording : Response message: URLDecoder: Illegal hex characters in escape (%) pattern - For input string: "" "
- 54351
  - HC4 and URI fragments is failing

### Other Samplers

- 53997
  - LDAP Extended Request: Escape ampersand (&), left angle bracket (<) and right angle bracket (>) in search filter tag in XML response data
- 53995
  - AbstractJDBCTestElement shares PreparedStatement between multi-threads
- 54119
  - HTTP 307 response is not redirected
- 54326
  - AjpSampler send file in post throws FileNotFoundException
- 54331
  - AjpSampler throws null pointer on GET request that are protected

### Controllers

### Listeners

- 54088
  - The type video/f4m is text, not binary
- 54166
  - ViewResultsTree could not render the HTML response: handle failure to parse HTML
- 54287
  - Incorrect Timestamp in Response Time Graph when using a date with time in Date format field
- 54451
  - Response Time Graph reports wrong times when the are many samples for same time
- 54459
  - CSVSaveService does not handle date parsing very well

### Timers, Assertions, Config, Pre- & Post-Processors

- 54058
  - In HTTP Request Defaults, the value of field "Embedded URLs must match: is not saved if the check box "Retrieve All Embedded Resources" is not checked.
- 54375
  - Regular Expression Extractor : When regex syntax is wrong, post processing is stopped

### Functions

### I18N

### General

- 53975
  - Variables replacement doesn't work with option "Delay thread creation until needed"
- 54055
  - View Results tree: = signs are stripped from parameter values at HTTP tab
- 54129
  - Search Feature does not find text although existing in elements
- 54023
  - Unable to start JMeter from a root directory and if the full path of JMeter installation contains one or more spaces (Unix/linux)
- 54172
  - Duplicate shortcut key not working and CTRL+C / CTRL+V / CTRL+V do not cancel default event
- 54057
  - Proxy option to set user and password at startup (-u and -a) not working with HTTPClient 4
- 54267
  - Start Next Thread Loop setting doesn't work in custom thread groups
- 54413
  - DataStrippingSampleSender returns 0 for number of bytes of any response

## Improvements

### HTTP Samplers

- 54185
  - Allow query strings in paths that start with HTTP or HTTPS

### Other samplers

- 54004
  - Webservice Sampler : Allow adding headers to request with Header Manager
- 54106
  - JSR223TestElement should check for file existence when a filename is set instead of using Text Area content
- 54107
  - JSR223TestElement : Enable compilation and caching of Script Text
- 54109
  - JSR223TestElement : SampleResult properties should be set before entering script to allow user setting different code
- 54230
  - TCP Sampler, additions of "Close Connection", "SO_LINGER" and "End of line(EOL) byte value" options
- 54182
  - Support sending of ByteMessage for JMS Publisher.

### Controllers

- 54131
  - ForEach Controller : Add start and end index for looping over variables
- 54132
  - Module Controller GUI : Improve rendering of referenced controller
- 54155
  - ModuleController : Add a shortcut button to unfold the tree up to referenced controller and highlight it

### Listeners

- 54200
  - Add support of several document types (like Apache OpenOffice's files, MS Office's files, PDF's files, etc.) to the elements View Results Tree, Assertion Response and Regular Expression Extractor (using Apache Tika)
- 54226
  - View Results Tree : Show response even when server does not return ContentType header

### Timers, Assertions, Config, Pre- & Post-Processors

- 54259
  - Introduce a new Extractor that uses CSS or jquery-like selector syntax
- 45772
  - RegEx User Parameters Post Processor
- 54160
  - Add support for xpath assertion to apply to a JMeter variable.

### Functions

- 54189
  - Add a function to quote ORO regexp meta characters
- 54418
  - UUID Function

### I18N

### General

- 54005
  - HTTP Mirror Server : Add special headers "X-" to control Response status and response content
- 53875
  - Include suggested defaults for URL filters on HTTP Proxy
- 54031
  - Add tooltip to running/total threads indicator
- Webservice (SOAP) Request has been deprecated
- 54161
  - Proxy : be able to create binary sampler for x-www-form-urlencoded POST request
- 54154
  - HTTP Proxy Server should not force user to select the type of Sampler in HTTP Sampler Settings
- 54165
  - Proxy Server: Improve rendering of target controller
- 46677
  - Copying Test Elements between test plans
- 54204
  - Result Status Action Handler : Add start next thread loop option
- 54232
  - Search Feature : Add a button to search and expand results
- 54251
  - Add tristate checkbox implementation
- 54257
  - Enhance SamplerCreator interface to meet new requirements
- 54258
  - Proxy : Use Raw Post Body when Sampler has one unnamed argument, useful for Samplers using POST method by of type JSON, XML, GWT body
- 54268
  - Improve CPU and memory usage
- 54376
  - ScopePanel : Allow configuring more precisely scopes
- 54412
  - Changing JMeter defaults to ensure better performances by default
- 54414
  - Remote Test should not start if one of the engines fails to start correctly

## Non-functional changes

- 53956
  - Add ability to paste (a list of values) from clipboard for Header Manager
- Updated to HttpComponents Client 4.2.3 (from 4.2.1)
- Updated to HttpComponents Core 4.2.3 (from 4.2.2)
- 54110
  - BSFTestElement and JSR223TestElement should use shared super-class for common fields
- 54199
  - Move to Java 6
- Upgraded to rhino 1.7R4

# Version 2.8

## New and Noteworthy

### Core Improvements:

#### Thread Group: New Option Delay thread creation until needed

New Option "Delay thread creation until needed" that will create and start threads when needed instead of creating them on Test startup
This new feature allows running tests with a huge number of short lived threads.

#### HTTP Cookie Manager (IPv6 support)

Add HTTPClient 4 cookie implementation in JMeter.
Cookie Manager has now the default HC3.1 implementation and a new choice HC4 implementation (compliant with IPv6 address)

#### Memory and performance improvements

Significant improvements have been done in this version on memory usage of JMeterThread

JSR223 Elements (enable using Groovy, scala, &hellip; as scripting languages) have been improved to enable:

- usage of Compilable interface when available to boost CPU usage
- caching of Compilation when scripts are used as Files

See JMeter Performances across versions

#### OS Process Sampler

Allow defining files for stdout/stderr/stdin.

#### HTTP Request: PATCH verb

Add PATCH verb to HTTP sampler

#### HTTP Request: HTTPClient 4 is now the default implementation

HTTPClient 4 is now the default HTTP Request implementation (and for Proxy element when generating HTTP requests).
Previously the default was the HTTP Java implementation (i.e. the implementation provided by the JVM)

#### HTTP Request

Add Embedded URL Filter to HTTP Request Defaults Control (it was already present for HTTP Requests)

#### Miscellaneous

- CSV Dataset : Embedded new lines are now supported in quoted data
- JMX files now contain the version of JMeter that created the file
- JMeter Version is now available as property "jmeter.version"

### Reporting Improvements:

#### Response Time Graph

Add a new visualizer Response Time Graph to draw a line graph showing the evolution of response time for a test

Settings for Response Time Graph

#### View Results in Table

Add latency to View Result in Table listener

#### Aggregate Graph

Small improvements: legend at left or right is now on 1 column (instead of 1 large line), &hellip;

### GUI and ergonomy Improvements:

#### HTTP Proxy Server simplifications

HTTPS Spoofing options have been removed from Proxy as HTTPS recording is directly available since JMeter 2.4.

#### HTTP Proxy Server

Allow URL Filters to be pasted from clipboard

#### Find in JMeter

CTRL + F for the new Find feature

ESC key now closes popups.

#### User Interface in GNOME 3

Display 'Apache JMeter' title in app title bar in Gnome 3

## Known bugs

The Once Only controller behaves correctly under a Thread Group or Loop Controller, but otherwise its behaviour is not consistent (or clearly specified).

Listeners don't show iteration counts when a If Controller has a condition which is always false from the first iteration (see 52496). A workaround is to add a sampler at the same level as (or superior to) the If Controller. For example a Test Action sampler with 0 wait time (which doesn't generate a sample), or a Debug Sampler with all fields set to False (to reduce the sample size).

Changing language can break part of the configuration of the following elements (see 53679):

- CSV Data Set Config (sharing mode will be lost)
- Constant Throughput Timer (Calculate throughput based on will be lost)

Note that there is a bug in Java on some Linux systems that manifests itself as the following error when running the test cases or JMeter itself:

     [java] WARNING: Couldn't flush user prefs:
     java.util.prefs.BackingStoreException:
     java.lang.IllegalArgumentException: Not supported: indent-number

This does not affect JMeter operation.

## Incompatible changes

When using CacheManager, JMeter now caches responses for GET queries provided header Cache-Control is different from "no-cache" as described in specification. Furthermore it doesn't put anymore in Cache deprecated entries for "no-cache" responses. See 53521 and 53522

A major change has occurred on JSR223 Test Elements, previously variables set up before script execution where stored in ScriptEngineManager which was created once per execution, now ScriptEngineManager is a singleton shared by all JSR223 elements and only ScriptEngine is created once per execution, variables set up before script execution are now stored in Bindings created on each execution, see 53365.

JSR223 Test Elements using Script file are now Compiled if ScriptEngine supports this feature, see 53520.

Shortcut for Function Helper Dialog is now CTRL+F1 (CMD + F1 for Mac OS), CTRL+F (CMD+F1 for Mac OS) now opens Search Dialog.

By default, the TestCompiler now stores details of which pairs it has seen in Controller instances rather than in a static Set. [53796] This gives much better memory behaviour for delayed start test plans, as memory used is proportional to the number of concurrent threads. With the static Set memory usage was proportional to the total thread count. This change is very unlikely to cause a problem. The original behaviour can be restored by setting the property `TestCompiler.useStaticSet=true`

HTTPS Spoofing options have been removed from Proxy as HTTPS recording is directly available since JMeter 2.4.

## Bug fixes

### HTTP Samplers and Proxy

- 53521
  - Cache Manager should cache content with Cache-control=private
- 53522
  - Cache Manager should not store at all response with header "no-cache" and store other types of Cache-Control having max-age value
- 53838
  - Pressing "Stop" does not interrupt the TCP sampler
- 53911
  - JmeterKeystore does not allow for key down the list of certificate

### Other Samplers

- 53348
  - JMeter JMS Point-to-Point Request-Response sampler doesn't work when Request-queue and Receive-queue are different
- 53357
  - JMS Point to Point reports too high response times in Request Response Mode
- 53440
  - SSL connection leads to ArrayStoreException on JDK 6 with some KeyManagerFactory SPI
- 53511
  - access log sampler SessionFilter throws NullPointerException - cookie manager not initialized properly
- 53715
  - JMeter does not load WSDL

### Controllers

### Listeners

- 53742
  - When jmeter.save.saveservice.sample_count is set to true, elapsed time read by listener is always equal to 0
- 53774
  - RequestViewRaw does not show headers unless samplerData is non-null
- 53802
  - IdleTime values are not saved to CSV log
- 53874
  - View Results Tree : If some parameter containing special characters like % is not encoded, RequestViewHTTP fails with java.lang.IllegalArgumentException: URLDecoder: Illegal hex characters in escape (%) pattern and Response is not displayed

### Timers, Assertions, Config, Pre- & Post-Processors

- 51512
  - Cookies aren't inserted into HTTP request with IPv6 Host header

### Functions

### I18N

### General

- 53365
  - JSR223TestElement should cache ScriptEngineManager
- 53520
  - JSR223 Elements : Use Compilable interface to improve performances on File scripts
- 53501
  - Synchronization timer blocks test end.
- 53750
  - TestCompiler saves unnecessary entries in pairing collection
- 52266
  - Code:Inconsistent synchronization
- 53841
  - CSVSaveService reads file using JVM default file encoding instead of using the one configured in saveservice.properties
- 53953
  New: Typo in monitor test plan documentation

## Improvements

### HTTP Samplers

- 53675
  - Add PATCH verb to HTTP sampler
- 53931
  - Define HTTPClient 4 for the default HTTP Request (and Proxy element to generate the HTTP requests). Before the default, it was the HTTP Java Sampler
- 53934
  - Removes HTTPS spoofing options in JMeter HTTP Proxy Server. Since JMeter 2.4, the HTTPS protocol is directly supported by the proxy

### Other samplers

- 55310
  - TestAction should implement Interruptible
- 53318
  - Add Embedded URL Filter to HTTP Request Defaults Control
- 53782
  - Enhance JavaSampler handling of JavaSamplerClient cleanup to use less memory
- 53168
  - OS Process - allow specification of stdout/stderr/stdin
- 53844
  - JDBC related elements should check class of Variable Name supposed to contain JDBC Connection Configuration to avoid ClassCastException

### Controllers

- 53671
  - tearDown thread group to run even if shutdown test happens

### Listeners

- 53566
  - Don't log partial responses to the jmeter log
- 53716
  - Small improvements in aggregate graph: legend at left or right is now on 1 column (instead of 1 large line), no border to the reference's square color, reduce width on some fields
- 53718
  - Add a new visualizer 'Response Time Graph' to draw a line graph showing the evolution of response time for a test
- 53738
  - Keep track of number of threads started and finished
- 53753
  - Summariser: no point displaying fractional time in most cases
- 53749
  - TestListener interface could perhaps be split up. This should reduce per-thread memory requirements and processing, as only test elements that actually use testIterationStart functionality now need to be handled.
- 53941
  - Add latency to View Result table listener

### Timers, Assertions, Config, Pre- & Post-Processors

- 53755
  - Adding a HttpClient 4 cookie implementation in JMeter. Cookie Manager has now the default HC3.1 implementation and a new choice HC4 implementation (compliant with IPv6 address)

### Functions

- 51527
  - __time() function : add another option to __time() to provide *seconds* since epoch

### I18N

### General

- 53364
  - Sort list of Functions in Function Helper Dialog
- 53418
  - New Option "Delay thread creation until needed" that will create and start threads when needed instead of creating them on Test startup
- 42245
  - Show clear passwords in HTTP Authorization Manager
- 53616
  - Display 'Apache JMeter' title in app title bar in Gnome 3
- 53759
  - ClientJMeterEngine performs unnecessary traverse using SearchByClass(TestListener)
- 52601
  - CTRL + F for the new Find feature
- 53796
  - TestCompiler uses static Set which can grow huge
- 53673
  - Add JMeter version in the jmx file
- Add support for HeapDump to the JMeter non-GUI and GUI client
- 53862
  - Would be nice to have the JMeter Version available as a property
- 53806
  - FileServer should provide thread-safe parsing
- 53807
  - CSV Dataset does not handle embedded new lines in quoted data
- 53879
  - GUI : Allow Popups to be closed with ESC key
- 53876
  - Allow URL Filters (HTTP Proxy) to be pasted from clipboard

## Non-functional changes

- 53311
  - JMeterUtils#runSafe should not throw Error when interrupted
- Updated to commons-net-3.1 (from 3.0.1)
- Updated to HttpComponents Core 4.2.2 (from 4.1.4) and HttpComponents Client 4.2.1 (from 4.1.3)
- 53765
  - Switch to commons-lang3-3.1
- 53884
  - wrong Maven groupId for commons-lang

# Version 2.7

## New and Noteworthy

### OS Process Sampler

A new System Sampler that can be used to execute commands on the local machine.

OS Process Sampler results example with DNS lookup command 'dig'

### JMS Samplers improvements

Addition of a "Non Persistent Delivery" option to send "Non-Persistent" (Guaranteed to be delivered at most once. Message loss is not a concern.) JMS messages

Support sending of JMS Object Messages to enable sending Objects unmarshalled from XML by XStream

Enable setting JMS Properties through JMS Publisher sampler

### Test Action sampler

Allow premature exit from a loop

### Webservice Sampler improvements

Add a jmeter property soap.document_cache to control size of Document Cache

Make Maintain HTTP Session configurable

### Aggregate graph: Clustered Bar char with average, median, 90% line, min and max columns

Aggregate graph changes to Clustered Bar chart, add more columns (median, 90% line, min, max) and options, fixed some bugs

New settings for aggregate graph

### Improvements of HTML report design generated by JMeter Ant task in extras folder

HTML report example

HTML report example with some assertion errors

### Mailer Visualizer

- Enable authentication, and connection security with SSL or TLS
- Improve GUI design
- Add internationalisation (i18n) support

### New Visual Indicator of number of ERROR/FATAL messages in logs

Indicator shows number of ERROR/FATAL messages in logs, it can be clicked to toggle Log Viewer panel

### Dialog box to show detail of a parameter row

Add a detail button on parameters table to show detail of a Row

Detail box example

### Plugin writers

New interface org.apache.jmeter.engine.util.ConfigMergabilityIndicator has been introduced to tell whether a ConfigTestElement can be merged in Sampler (see 53042):

    public boolean applies(ConfigTestElement configElement);

New interface org.apache.jmeter.protocol.http.proxy.SamplerCreator to allow plugging HTTP based samplers that differ from default HTTP Samplers through Proxy during Recording Phase (see 52674):

    public String[] getManagedContentTypes();

    public HTTPSamplerBase createSampler(HttpRequestHdr request, Map<String, String> pageEncodings, Map<String, String> formEncodings);

    public void populateSampler(HTTPSamplerBase sampler, HttpRequestHdr request, Map<String, String> pageEncodings, Map<String, String> formEncodings) throws Exception;

## Known bugs

The Once Only controller behaves correctly under a Thread Group or Loop Controller, but otherwise its behaviour is not consistent (or clearly specified).

Listeners don't show iteration counts when a If Controller has a condition which is always false from the first iteration (see 52496). A workaround is to add a sampler at the same level as (or superior to) the If Controller. For example a Test Action sampler with 0 wait time (which doesn't generate a sample), or a Debug Sampler with all fields set to False (to reduce the sample size).

## Incompatible changes

When doing replacement of User Defined Variables, Proxy will not substitute partial values anymore when "Regexp matching" is used. It will use Perl 5 word matching ("\b")

In User Defined Variables, Test Plan, HTTP Sampler Arguments Table, Java Request Defaults, JMS Sampler and Publisher, LDAP Request Defaults and LDAP Extended Request Defaults, rows with empty Name and Value are no more saved.

JMeter now expands the Test Plan tree to the testplan level and no further and selects the root of the tree. Furthermore default value of onload.expandtree is false.

Graph Full Results Listener has been removed.

When calling "Clear All" command, if Log Viewer is displayed its content will be cleared.

## Bug fixes

### HTTP Samplers and Proxy

- 52613
  - Using Raw Post Body option, text gets encoded
- 52781
  - Content-Disposition header garbled even if browser compatible headers is checked (HC4)
- 52796
  - MonitorHandler fails to clear variables when starting a new parse
- 52871
  - Multiple Certificates not working with HTTP Client 4
- 52885
  - Proxy : Recording issues with HTTPS, cookies starting with secure are partly truncated
- 52886
  - Proxy : Recording issues with HTTPS when spoofing is on, secure cookies are not always changed
- 52897
  - HTTPSampler : Using PUT method with HTTPClient4 and empty Content Encoding and sending files leads to NullPointerException
- 53145
  - HTTP Sampler - function in path evaluated too early

### Other Samplers

- 51737
  - TCPSampler : Packet gets converted/corrupted
- 52868
  - BSF language list should be sorted
- 52869
  - JSR223 language list currently uses BSF list which is wrong
- 52932
  - JDBC Sampler : Sampler is not marked in error in an Exception which is not of class IOException, SQLException, IOException occurs
- 52916
  - JDBC Exception if there is an empty user defined variable
- 52937
  - Webservice Sampler : Clear Soap Documents Cache at end of Test
- 53027
  - JMeter starts throwing exceptions while using SMTP Sample in a test plan with HTTP Cookie Mngr or HTTP Request Defaults
- 53072
  - JDBC PREPARED SELECT statements should return results in variables like non prepared SELECT

### Controllers

- 52968
  - Option Start Next Loop in Thread Group does not mark parent Transaction Sampler in error when an error occurs
- 50898
  - IncludeController : NullPointerException loading script in non-GUI mode if Includers use same element name

### Listeners

- 43450
  - Listeners/Savers assume SampleResult count is always 1; fixed Generate Summary Results

### Assertions

- 52848
  - NullPointer in "XPath Assertion"

### Functions

### I18N

- 52551
  - Function Helper Dialog does not switch language correctly
- 52552
  - Help reference only works in English

### General

- 52639
  - JSplitPane divider for log panel should be hidden if log is not activated
- 52672
  - Change Controller action deletes all but one child samplers
- 52694
  - Deadlock in GUI related to non AWT Threads updating GUI
- 52678
  - Proxy : When doing replacement of UserDefinedVariables, partial values should not be substituted
- 52728
  - CSV Data Set Config element cannot coexist with BSF Sampler in same Thread Plan
- 52762
  - Problem with multiples certificates: first index not used until indexes are restarted
- 52741
  - TestBeanGUI default values do not work at second time or later
- 52783
  - oro.patterncache.size property never used due to early init
- 52789
  - Proxy with Regexp Matching can fail with NullPointerException in Value Replacement if value is null
- 52645
  - Recording with Proxy leads to OutOfMemory
- 52679
  - User Parameters columns narrow
- 52843
  - Sample headerSize and bodySize not being accumulated for subsamples
- 52967
  - The function __P() couldn't use default value when running with remote server in GUI mode.
- 50799
  - Having a non-HTTP sampler in a http test plan prevents multiple header managers from working
- 52997
  - JMeter should not exit without saving Test Plan if saving before exit fails
- 53136
  - Catching Throwable needs to be carefully handled

## Improvements

### HTTP Samplers

### Other samplers

- 52775
  - JMS Publisher : Add Non Persistent Delivery option
- 52810
  - Enable setting JMS Properties through JMS Publisher sampler
- 52938
  - Webservice Sampler : Add a jmeter property soap.document_cache to control size of Document Cache
- 52939
  - Webservice Sampler : Make MaintainSession configurable
- 53073
  - Allow to assign the OUT result of a JDBC CALLABLE to JMeter variables
- 53164
  - New System Sampler
- 53172
  - OS Process Sampler - allow specification of Environment Variables
- 52936
  - JMS Publisher : Support sending of JMS Object Messages

### Controllers

### Listeners

- 52603
  - MailerVisualizer : Enable SSL , TLS and Authentication
- 52698
  - Remove Graph Full Results Listener
- 53070
  - Change Aggregate graph to Clustered Bar chart, add more columns (median, 90% line, min, max) and options, fixed some bugs
- 53246
  - Mailer Visualizer: improve GUI design and I18N

### Timers, Assertions, Config, Pre- & Post-Processors

### Functions

### I18N

- Mailer Visualizer has been internationalized. French translation added. (see 53246)

### General

- 45839
  - Test Action : Allow premature exit from a loop
- 52614
  - MailerModel.sendMail has strange way to calculate debug setting
- 52782
  - Add a detail button on parameters table to show detail of a Row
- 52674
  - Proxy : Add a Sampler Creator to allow plugging HTTP based samplers using potentially non textual POST Body (AMF, Silverlight, &hellip;) and customizing them for others
- 52934
  - GUI : Open Test plan with the tree expanded to the testplan level and no further and select the root of the tree
- 52941
  - Improvements of HTML report design generated by JMeter Ant task extra
- 53042
  - Introduce a new method in Sampler interface to allow Sampler to decide wether a config element applies to Sampler
- 52771
  - Documentation : Added RSS feed on JMeter Home page under link "Subscribe to What's New"
- 42784
  - Show the number of errors logged in the GUI
- 53256
  - Make Clear All command clean LogViewer content
- 53261
  - Make "Error/fatal" counter added in 42784 open Log Viewer panel when Warn Indicator is clicked

## Non-functional changes

- Upgraded to rhino 1.7R3 (was js-1.7R2.jar). Note: the Maven coordinates for the jar were changed from rhino:js to org.mozilla:rhino. This does not affect JMeter directly, but might cause problems if using JMeter in a Maven project with other code that depends on an earlier version of the Rhino Javascript jar.
- 52675
  - Refactor Proxy and HttpRequestHdr to allow Sampler Creation by Proxy
- 52680
  - Mention version in which function was introduced
- 52788
  - HttpRequestHdr : Optimize code to avoid useless work
- JMeter Ant (ant-jmeter-1.1.1.jar) task was upgraded from 1.0.9 to 1.1.1
- Updated to commons-io 2.2 (from 2.1)
- 53129
  - Upgrade XStream from 1.3.1 to 1.4.2
- Updated to httpcomponents-client 4.1.3 (from 4.1.2)
- Updated JMeter distributed testing guide (jmeter_distributed_testing_step_by_step.pdf). Changes source format to OpenOffice odt (from sxw)

# Version 2.6

## New and Noteworthy

### Toolbar

A new toolbar on JMeter's main window

### JMeter start test button

A new menu option and button allow to start a test ignoring the Pause Timers

### JMeter GUI Look and Feel

Allow System or CrossPlatform LAF to be set from options menu

### JMeter GUI - duplicate node

Add "duplicate node" in context menu

### JMeter tree view - search facility

Functionality to search by keyword in Samplers Tree View

### HTTP Request - raw request pane

Improve HTTP Request GUI to better show parameters without name (GWT RPC request or SOAP request for example)

### HTTP Request - other changes

- Allow multiple selection in arguments panel
- Allow to add (paste) entries from the clipboard to an arguments list
- Ability to move variables up or down in HTTP Request

### HTTP Request - file protocol

Better support for file: protocol in HTTP sampler

Retrieve embedded resources with file: protocol

### HTTP Request - Ignore embedded resources failed

Enable "ignore failed" for embedded resources

Parent success with a embedded resource failed

### View Results in Table - child sample display

Add option to TableVisualiser to display child samples instead of parent

### Key Store - multiple certificates

Allowing multiple certificates (JKS)

### Aggregate graph improvements

Some improvements on Aggregate Graph Listener:

- new GUI for settings
- dynamic graph size
- allow to change fonts for title graph and legend
- allow to change bar color (background and text values)
- allow to draw or not bars outlines
- allow to select only some samplers by a regexp filter
- allow to define Y axis maximum scale

Aggregate Graph bar

### Counter - new reset option

Add an option to reset counter on each Thread Group iteration

### Functions

- Add a new function __RandomString to generate random Strings
- Add a new function __TestPlanName returning the name of the current "Test Plan"
- Add a new function __machineIP returning IP address
- Add a new function __jexl2 to support Jexl2

### User Defined Variable improvements

- Add a comment field in User Defined Variables
- Allow to add (paste) entries from the clipboard to an arguments list
- Ability to move up or down variables in User Defined Variables

### View Results Tree

In View Results Tree rather than showing just a message if the results are to big, show as much of the result as are configured

### Controllers - change elements

Add ability to Change Controller elements

### JDBC pre- and post-processor

Add JDBC pre- and post-processor

### JDBC transaction isolation option

Allow to set the transaction isolation in the JDBC Connection Configuration

### Poisson Timer

Add a Poisson based timer

### GUI and OS interaction

Support for file Drag and Drop.

### Confirm Remove Dialog box

Add a dialog box to confirm removing the element(s) when Remove action is called The dialogue can be skipped by setting the JMeter property `confirm.delete.skip=true`

### Remote batching support

Use external store to hold samples during distributed testing, Added DiskStore remote sample sender: like Hold, but saves samples to disk until end of test

### JMS Subscriber sampler

With JMS Subscriber, ability to use Selectors

### New Logger Panel

A new Log Viewer has been added to the GUI and can be enabled from menu Options &rarr; Log Viewer:

This Log Viewer shows the jmeter.log file, and useful (for example) to debug BeanShell/BSF scripts:

### The menu item Options / Choose Language is now fully functional

The menu item Options / Choose Language now changes all the displayed text to the new language provided all messages are translated. You can help on this by translating into your language.

### Legacy JMX and JTL Avalon format support restored

Support for reading/writing the original Avalon XML format of JMX (script) and JTL (sample result) files was dropped in JMeter version 2.4. JMeter can now read the Avalon format files again, however there is no support for saving files in the old format.

### JMeter jars available from Maven repository

JMeter jars are now available from Maven repository.

## Known bugs

The Include Controller has some problems in non-GUI mode (see Bugs 40671, 41286, 44973, 50898). In particular, it can cause a NullPointerException if there are two include controllers with the same name.

The Once Only controller behaves correctly under a Thread Group or Loop Controller, but otherwise its behaviour is not consistent (or clearly specified).

Listeners don't show iteration counts when a If Controller has a condition which is always false from the first iteration (see 52496). A workaround is to add a sampler at the same level as (or superior to) the If Controller. For example a Test Action sampler with 0 wait time (which doesn't generate a sample), or a Debug Sampler with all fields set to False (to reduce the sample size).

## Incompatible changes

JMeter versions since 2.1 failed to create a container sample when loading embedded resources. This has been corrected; can still revert to the 51939 behaviour by setting the following property: `httpsampler.separate.container=false`

Mirror server now uses default port 8081, was 8080 before 2.5.1.

TCP Sampler handles SocketTimeoutException, SocketException and InterruptedIOException differently since 2.6, when these occurs, Sampler is marked as failed.

Sample Sender implementations now resolve their configuration on Client side since 2.6. This behaviour can be changed with property sample_sender_client_configured (set it to false).

The HTTP User Parameter Modifier test element has been removed; it has been deprecated for a long time.

## Bug fixes

### HTTP Samplers and Proxy

- 51932
  - CacheManager does not handle cache-control header with any attributes after max-age
- 51918
  - GZIP compressed traffic produces errors, when multiple connections allowed
- 51939
  - Should generate new parent sample if necessary when retrieving embedded resources
- 51942
  - Synchronisation issue on CacheManager when Concurrent Download is used
- 51957
  - Concurrent get can hang if a task does not complete
- 51925
  - Calling Stop on Test leaks executor threads when concurrent download of resources is on
- 51980
  - HtmlParserHTMLParser double-counts images used in links
- 52064
  - OutOfMemory Risk in CacheManager
- 51919
  - Random ConcurrentModificationException or NoSuchElementException in CookieManager#removeMatchingCookies when using Concurrent Download
- 52126
  - HttpClient4 does not clear cookies between iterations
- 52129
  - Reported Body Size is wrong when using HTTP Client 4 and Keep Alive connection
- 52137
  - Problems with HTTP Cache Manager
- 52221
  - Nullpointer Exception with use Retrieve Embedded Resource without HTTP Cache Manager
- 52310
  - variable in IPSource failed HTTP request if "Concurrent Pool Size" is enabled
- 52371
  - API Incompatibility - Methods in HTTPSampler2 now require PostMethod instead of HttpMethod[Base]. Reverted to original types.
- 49950
  - Proxy : IndexOutOfBoundsException when recording with Proxy server
- 52409
  - HttpSamplerBase#errorResult modifies sampleResult passed as parameter; fix code which assumes that a new instance is created (i.e. when adding a sub-sample)
- 52507
  - Delete Http User Parameters modifier (deprecated, obsolete)

### Other Samplers

- 51996
  - JMS Initial Context leak newly created Context when Multiple Thread enter InitialContextFactory#lookupContext at the same time
- 51691
  - Authorization does not work for JMS Publisher and JMS Subscriber
- 52036
  - Durable Subscription fails with ActiveMQ due to missing clientId field
- 52044
  - JMS Subscriber used with many threads leads to javax.naming.NamingException: Something already bound with ActiveMQ
- 52072
  - LengthPrefixedBinaryTcpClientImpl may end a sample prematurely
- 52390
  - AbstractJDBCTestElement:Memory leak and synchronization issue in perConnCache

### Controllers

- 51865
  - Infinite loop inside thread group does not work properly if "Start next loop after a Sample error" option set
- 51868
  - A lot of exceptions in jmeter.log while using option "Start next loop" for thread
- 51866
  - Counter under loop doesn't work properly if "Start next loop on error" option set for thread group
- 52296
  - TransactionController + Children ThrouputController or InterleaveController leads to ERROR sampleEnd called twice java.lang.Throwable: Invalid call sequence when TPC does not run sample
- 52330
  - With next-Loop-On-Error after error samples are not executed in next loop

### Listeners

- 52357
  - View results in Table does not allow for multiple result samples
- 52491
  - Incorrect parsing of Post data parameters in Tree Listener / Http Request view

### Assertions

- 52519
  - XMLSchemaAssertion uses JMeter JVM file.encoding instead of response encoding

### Functions

- The CRLF example for the char function was wrong; CRLF=(0xD,0xA), not (0xC,0xA)

### I18N

### General

- 51937
  - JMeter does not handle missing TestPlan entry well
- 51988
  - CSV Data Set Configuration does not resolve default delimiter for header parsing when variables field is empty
- 52003
  - View Results Tree "Scroll automatically" does not scroll properly in case nodes are expanded
- 27112
  - User Parameters should use scrollbars
- 52029
  - Command-line shutdown only gets sent to last engine that was started
- 52093
  - Toolbar ToolTips don't switch language
- 51733
  - SyncTimer is messed up if you a interrupt a test plan
- 52118
  - New toolbar : shutdown and stop buttons not disabled when no test is running
- 52125
  - StatCalculator.addAll(StatCalculator calc) joins incorrect if there are more samples with the same response time in one of the TreeMap
- 52339
  - JMeter Statistical mode in distributed testing shows wrong response time
- 52215
  - Confusing synchronization in StatVisualizer, SummaryReport ,Summariser and issue in StatGraphVisualizer
- 52216
  - TableVisualizer : currentData field is badly synchronized
- 52217
  - ViewResultsFullVisualizer : Synchronization issues on root and treeModel
- 43294
  - XPath Extractor namespace problems
- 52224
  - TestBeanHelper does not support NOT_UNDEFINED == Boolean.FALSE
- 52279
  - Switching to another language loses icons in Tree and logs error Can't obtain GUI class from &hellip;
- 52280
  - The menu item Options / Choose Language does not change all the displayed text to the new language
- 52376
  - StatCalculator#addValue(T val, int sampleCount) should use long, not int
- 49374
  - Encoding of embedded element URLs depend on the file.encoding property
- 52399
  - URLRewritingModifier uses default file.encoding to match text content
- 50438
  - code calculates average with integer math, expecting double value
- 52469
  - Changes in Support of SSH-Tunneling of RMI traffic for Remote Testing
- 52466
  - Upgrade Test Plan feature : NameUpdater does not upgrade properties
- 52503
  - Unify File&rarr;Close and Window close file saving behaviour
- 52537
  - Help does not scroll to correct anchor when file is first loaded

## Improvements

### HTTP Samplers

- 51981
  - Better support for file: protocol in HTTP sampler
- 52033
  - Allowing multiple certificates (JKS)
- 52352
  - Proxy : Support IPv6 URLs capture
- 44301
  - Enable "ignore failed" for embedded resources

### Other samplers

- 51419
  - JMS Subscriber: ability to use Selectors
- 52088
  - JMS Sampler : Add a selector when REQUEST / RESPONSE is chosen
- 52104
  - TCP Sampler handles badly errors
- 52087
  - TCPClient interface does not allow for partial reads
- 52115
  - SOAP/XML-RPC should not send a POST request when file to send is not found
- 40750
  - TCPSampler : Behaviour when sockets are closed by remote host
- 52396
  - TCP Sampler in "reuse connection mode" reuses previous sampler's connection even if it's configured with other host, port, user or password
- 52048
  - BSFSampler, BSFPreProcessor and BSFPostProcessor should share the same GUI

### Controllers

### Listeners

- 52022
  - In View Results Tree rather than showing just a message if the results are to big, show as much of the result as are configured
- 52201
  - Add option to TableVisualiser to display child samples instead of parent
- 52214
  - Save Responses to a file - improve naming algorithm
- 52340
  - Allow remote sampling mode to be changed at run-time
- 52452
  - Improvements on Aggregate Graph Listener (GUI and settings)
- Resurrected OldSaveService to allow reading Avalon format JTL (result) files

### Timers, Assertions, Config, Pre- & Post-Processors

- 52128
  - Add JDBC pre- and post-processor
- 52183
  - SyncTimer could be improved (performance+reliability)
- 52317
  - Counter : Add option to reset counter on each Thread Group iteration
- 37073
  - Add a Poisson based timer
- 52497
  - Improve DebugSampler and DebugPostProcessor

### Functions

- 52006
  - Create a function RandomString to generate random Strings
- 52016
  - It would be useful to support Jexl2
- __char() function now supports octal values
- New function __machineIP returning IP address
- 51091
  - New function returning the name of the current "Test Plan"

### I18N

### General

- 51892
  - Default mirror port should be different from default proxy port
- 51817
  - Moving variables up and down in User Defined Variables control
- 51876
  - Functionality to search in Samplers TreeView
- 52019
  - Add menu option to Start a test ignoring Pause Timers
- 52027
  - Allow System or CrossPlatform LAF to be set from options menu
- 52037
  - Remember user-set LaF over restarts.
- 51861
  - Improve HTTP Request GUI to better show parameters without name (GWT RPC requests for example) (UNDER DEVELOPMENT)
- 52040
  - Add a toolbar in JMeter main window
- 51816
  - Comment Field in User Defined Variables control.
- 52052
  - Using a delimiter to separate result-messages for JMS Subscriber
- 52103
  - Add automatic scrolling option to table visualizer
- 52097
  - Save As should point to same folder that was used to open a file if MRU list is used
- 52085
  - Allow multiple selection in arguments panel
- 52099
  - Allow to set the transaction isolation in the JDBC Connection Configuration
- 52116
  - Allow to add (paste) entries from the clipboard to an arguments list
- 52160
  - Don't display TestBeanGui items which are flagged as hidden
- 51886
  - SampleSender configuration resolved partly on client and partly on server
- 52161
  - Enable plugins to add own translation rules in addition to upgrade.properties. Loads any additional properties found in META-INF/resources/org.apache.jmeter.nameupdater.properties files
- 42538
  - Add "duplicate node" in context menu
- 46921
  - Add Ability to Change Controller elements
- 52240
  - TestBeans should support Boolean, Integer and Long
- 52241
  - GenericTestBeanCustomizer assumes that the default value is the empty string
- 52242
  - FileEditor does not allow output to be saved in a File
- 51093
  - when loading a selection previously stored by "Save Selection As", show the file name in the blue window bar
- 50086
  - Password fields not Hidden in JMS Publisher, JMS Subscriber, Mail Reader sampler, SMTP sampler and Database Configuration
- 29352
  - Use external store to hold samples during distributed testing, Added DiskStore remote sample sender: like Hold, but saves samples to disk until end of test.
- 52333
  - Reduce overhead in calculating SampleResult#nanoTimeOffset
- 52346
  - Shutdown detects if there are any non-daemon threads left which prevent JVM exit.
- 52281
  - Support for file Drag and Drop
- 52471
  - Improve Mirror Server performance by Using Pool of threads instead of launching a Thread for each request
- Resurrected OldSaveService to allow reading Avalon format JMX files (removed in 2.4)
- Add a dialog box to confirm removing the element(s) when Remove action is called
- 41788
  - Log viewer (console window) needed as an option
- Add option to change the pause time (default 2000ms) in the daemon thread which checks for successful JVM exit. The thread is not now started unless the pause time is greater than 0.

## Non-functional changes

- fixes to build.xml: support scripts; localise re-usable property names
- 51923
  - Counter function bug or documentation issue ? (fixed docs)
- Update velocity.jar to 1.7 (from 1.6.2)
- Update js.jar to 1.7R3 (from 1.6R5)
- Update commons-codec 1.5 &rArr; 1.6
- Update commons-io 2.0.1 &rArr; 2.1
- Update commons-jexl 2.0.1 &rArr; 2.1.1
- Update jdom 1.1 &rArr; 1.1.2
- Update junit 4.9 &rArr; 4.10
- 51954
  - Generated documents include </br> entries which cause extra blank lines
- 52075
  - JMeterProperty.clone() currently returns Object; it should return JMeterProperty
- Updated httpcore to 4.1.4
- 49753
  - Please publish jMeter artifacts on Maven central repository

# Version 2.5.1

## Summary of main changes

- HttpClient4 sampler now re-uses connections properly (previously it would use one per sample, which could quickly cause resource exhaustion).
- Various fixes to JMS samplers
- Functions are no longer spuriously invoked when used with a Configuration element
- WebService sampler GUI has been re-organized for better design and more user-friendliness. Some improvements on WSDL configuration assistant
- Better handling of test shutdown. System.exit now only called if there is no other option; even this can be disabled.

## Known bugs

The Include Controller has some problems in non-GUI mode. In particular, it can cause a NullPointerException if there are two include controllers with the same name.

The Once Only controller behaves correctly under a Thread Group or Loop Controller, but otherwise its behaviour is not consistent (or clearly specified).

The If Controller may cause an infinite loop if the condition is always false from the first iteration. A workaround is to add a sampler at the same level as (or superior to) the If Controller. For example a Test Action sampler with 0 wait time (which doesn't generate a sample), or a Debug Sampler with all fields set to False (to reduce the sample size).

The menu item Options / Choose Language does not change all the displayed text to the new language. [The behaviour has improved, but language change is still not fully working] To override the default local language fully, set the JMeter property "language" before starting JMeter.

## Incompatible changes

The HttpClient4 and Commons HttpClient 3.1 samplers previously used a retry count of 3. This has been changed to default to 1, to be compatible with the Java implementation. The retry count can be overridden by setting the relevant JMeter property, for example:

    httpclient4.retrycount=3
    httpclient3.retrycount=3

## Bug fixes

### HTTP Samplers and Proxy

- Fix HttpClient 4 sampler so it reuses HttpClient instances and connections where possible.
- Temporary fix to HC4 sampler to work round HTTPCLIENT-1120.
- 51863
  - Lots of ESTABLISHED connections with HttpClient 4 implementation (vs HttpClient 3.1 impl)
- 51750
  - Retrieve all embedded resources doesn't follow IFRAME
- 51752
  - HTTP Cache is broken when using "Retrieve all embedded resources" with concurrent pool
- 39219
  - HTTP Server: You can't stop it after File&rarr;Open
- 51775
  - Port number duplicates in Host header when capturing by HttpClient (3.1 and 4.x)
- 50617
  - Monitor Results legend show "dead" server although values from the server are retrieved

### Other Samplers

- 50424
  - Web Methods drop down list box inconsistent
- 43293
  - Java Request fields not cleared when creating new sampler
- 51830
  - Webservice Soap Request triggers too many popups when Webservice WSDL URL is down
- WebService(SOAP) request - add a connect timeout to get the wsdl used to populate Web Methods when server doesn't response
- 51841
  - JMS : If an error occurs in ReceiveSubscriber constructor or Publisher, then Connections will stay open
- 51691
  - Authorization does not work for JMS Publisher and JMS Subscriber
- 51840
  - JMS : Cache of InitialContext has some issues
- 47888
  - JUnit Sampler re-uses test object

### Controllers

- If Controller - Fixed two regressions introduced by 50032 (see 50618 too)
- If Controller - Catches a StackOverflowError when a condition returns always false (after at least one iteration with return true) See 50618
- 51869
  - NullPointer Exception when using Include Controller

### Listeners

### Assertions

### Functions

- 48943
  - Functions are invoked additional times when used in combination with a Config Element

### I18N

- WebService(SOAP) request - add I18N for some labels

### General

- 51831
  - Cannot disable UDP server or change the maximum UDP port
- 51821
  - Add short-cut for Enabling / Disabling (sub)tree or branches in test plan.
- 47921
  - Variables not released for GC after JMeterThread exits.
- 51839
  - "&hellip; end of run" printed prematurely
- 51847
  - Some JUnit tests are Locale sensitive and fail if Locale is different from US
- 51855
  - Parent samples may have slightly inaccurate elapsed times
- 51880
  - The shutdown command is not working if I invoke it before all the thread are started
- Remote Shut host menu item was not being enabled.
- 51888
  - Occasional deadlock when stopping a testplan

## Improvements

### HTTP Samplers

- 51380
  - Control reuse of cached SSL Context from iteration to iteration
- 51882
  - HTTPHC3Client uses a default retry count of 3, make it configurable; default is now 1
- Change the default HttpClient 4 sampler retry count to 1

### Other samplers

- Beanshell Sampler now supports Interruptible interface
- 51605
  - WebService(SOAP) Request - WebMethod field value changes surreptitiously for all the requests when a value is selected in a request
- WebService(SOAP) Request - Reorganized GUI for better design and more user-friendliness

### Controllers

### Listeners

- 42246
  - Need for a 'auto-scroll' option in "View Results Tree" and "Assertion Results"
- View Results Tree: Regexp Tester - little improvements on user interface

### Timers, Assertions, Config, Pre- & Post-Processors

- 51885
  - Allow a JMeter Variable as input to XPathExtractor

### Functions

### I18N

### General

- 51822
  - (part 1) save 1 invocation of GuiPackage#getCurrentGui
- Added AsynchSampleSender which sends samples from server to client asynchronously.
- Upgraded to htmlparser 2.1; JavaMail 1.4.4; JUnit 4.9

## Non-functional changes

- 49976
  - FormCharSetFinder visibility is default instead of public.
- 50917
  - Property CookieManager.save.cookies not honored when set from test plan
- Improve error logging when Javascript errors are detected.
- Updated documentation footer

# Version 2.5

## Summary of main changes

- The HTTP implementation can now be selected at run-time, and JMeter now also supports Apache HttpComponents HttpClient 4.x. Note that Commons HttpClient 3.1 is no longer actively developed, and support may be removed from JMeter in a future release.
- The HTTP sampler now allows concurrent downloads of embedded resources in an HTML page
- The HTTP Sampler can now report the size of a request before decompression.
- The JMS and Mail samplers have been improved.
- The new Test Fragment Test Element makes using Include Controllers easier
- There are various improvements to the View Results Tree Listener
- 30563
  - Thread Group should have a start next loop option on Sample Error
- There are two new Thread Group types - setUp and tearDown - which are run before and after the main Thread groups.
- Client-Server mode now supports external stop/shutdown via UDP
  multiple JMeter server instances can be started on the same host without needing to change the port property.
- 50516
  - "Host" header in HTTP Header Manager is not included in generated HTTP request

## Known bugs

The Include Controller has some problems in non-GUI mode. In particular, it can cause a NullPointerException if there are two include controllers with the same name.

Once Only controller behaves correctly under a Thread Group or Loop Controller, but otherwise its behaviour is not consistent (or clearly specified).

The menu item Options / Choose Language does not change all the displayed text to the new language. [The behaviour has improved, but language change is still not fully working] To override the default local language fully, set the JMeter property "language" before starting JMeter.

## Incompatible changes

Unsupported methods are no longer converted to GET by the Commons HttpClient sampler.

Removed method public static long currentTimeInMs(). This has been replaced by the instance method public long currentTimeInMillis().

ProxyControl.getSamplerTypeName() now returns a String rather than an int. This is internal to the workings of the JMeter Proxy & its GUI, so should not affect any user code.

## Bug fixes

### HTTP Samplers and Proxy

- 50178
  - HeaderManager added as child of Thread Group can create concatenated HeaderManager names and OutOfMemoryException
- 50392
  - value is trimmed when sending the request in Multipart
- 50686
  - HeaderManager logging too verbose when merging instances
- 50963
  - AjpSampler throws java.lang.StringIndexOutOfBoundsException
- 50516
  - "Host" header in HTTP Header Manager is not included in generated HTTP request
- 50544
  - In Apache Common Log the HEAD requests cause problems.
- 51268
  - HTTPS request through an invalid proxy causes NullPointerException and does not show in result tree. Rather than delegating to the JMeter thread handler for "unexpected" failures, ensure all Exceptions generate a sample error.
- 51275
  - Cookie Panel clearGui() sets incorrect default policy in Java 1.6

### Other Samplers

- 50173
  - JDBCSampler discards ResultSet from a PreparedStatement
- Ensure JSR223 Sampler has access to the current SampleResult
- 50977
  - Unable to set TCP Sampler for individual samples

### Controllers

- 50032
  - Last_Sample_Ok along with other controllers doesn't work correctly when the threadgroup has multiple loops
- 50080
  - Transaction controller incorrectly creates samples including timer duration
- 50134
  - TransactionController : Reports bad response time when it contains other TransactionControllers

### Listeners

- 50367
  - Clear / Clear all in View results tree does not clear selected element

### Assertions

- 51488
  - Assertion: Variable name scope is shared among all assertions (and 51255)

### Functions

- 50568
  - Function __FileToString(): Could not read file when encoding option is blank/empty

### I18N

- 50811
  - Incomplete Spanish translation

### General

- 49734
  - Null pointer exception on stop Threads command (Run &rarr; Stop)
- 49666
  - CSV Header read as data after EOF
- 45703
  - Synchronizing Timer
- 50088
  - fix getAvgPageBytes in SamplingStatCalculator so it returns what it should
- 50203
  Cannot set property "jmeter.save.saveservice.default_delimiter=\t"
- mirror-server.sh - fix classpath to use : separator (not ;)
- 50286
  - URL Re-writing Modifier: extracted jsessionid value is incorrect when is between XML tags
- System.nanoTime() tends to drift relative to System.currentTimeMillis(). Change SampleResult to recalculate offset each time. Also enable reversion to using System.currentTimeMillis() only.
- 50425
  - Remove thread groups from Controller add menu
- 50675
  - CVS Data Set Config incompatible with Remote Start Fixed RMI startup to provide location of JMX file relative to user.dir.
- 50221
  - Renaming elements in the tree does not resize label
- 51002
  - Stop Thread if CSV file is not available. JMeter now treats IOError as EOF.
- Define sun.net.http.allowRestrictedHeaders=true by default. This fixes 51238.
- 51645
  - CSVDataSet does not read UTF-8 files when file.encoding is UTF-8

## Improvements

### HTTP Samplers

- AJP Sampler now implements Interruptible
- Allow HTTP implementation to be selected at run-time
- 50684
  - Optionally disable Content-Type and Transfer-Encoding in Multipart POST
- 50943
  - Allowing concurrent downloads of embedded resources in html page
- 50170
  - Bytes reported by http sampler is after GUnZip
  Add optional properties to allow change the method to get response size
- Hiding the proxy password on HTTP Sampler (just on GUI, not in JMX file)

### Other samplers

- 49622
  - Allow sending messages without a subject (SMTP Sampler)
- 49603
  - Allow accepting expired certificates on Mail Reader Sampler
- 49775
  - Allow sending messages without a body
- 49862
  - Improve SMTPSampler Request output.
- 50268
  - Adds static and dynamic destinations to JMS Publisher
- JMS Subscriber - Add dynamic destination
- 50666
  - JMSSubscriber: support for durable subscriptions
- 50937
  - TCP Sampler does not provide for / honor connect timeout
- 50569
  - Jdbc Request Sampler to optionally store result set object data
- 51011
  - Mail Reader: upon authentication failure, tell what you tried

### Controllers

- 50475
  - Introduction of a Test Fragment Test Element for a better Include flow

### Listeners

- View Results Tree - Add a dialog's text box on "Sampler result tab &rarr; Parsed" to display the long value with a double click on cell
- 37156
  - Formatted view of Request in Results Tree
- 49365
  - Allow result set to be written to file in a path relative to the loaded script
- 50579
  - Error count is long, sample count is int. Changed sample count to long.
- View Results Tree - Add new size fields: response headers and response body (in bytes) - derived from 43363

### Timers, Assertions, Config, Pre- & Post-Processors

- 48015
  - Proposal new icons for pre-processor, post-processor and assertion elements
- 50962
  - SizeAssertionGui validation prevents the use of variables for the size
- Size Assertion - Add response size scope (full, headers, body, code, message) - derived from 43363

### Functions

- 49975
  - New function returning the name of the current sampler

### I18N

- Add French translation for the new labels and reduce size for some labels (by abbreviation) on HTTP Sample

### General

- 30563
  - Thread Group should have a start next loop option on Sample Error
- 50347
  - Eclipse setup instructions should remind user to download dependent jars
- 50490
  - Setup and Post Thread Group enhancements for better test flow.
- All BeanShell test elements now have the script variables "prev" and "Label" defined.
- 50708
  - Classpath jar order in NewDriver not alphabetically
- 50659
  - JMeter server does not support concurrent tests - prevent client from starting another
- Added remote shutdown functionality
- Client JMeter engine now supports external stop/shutdown via UDP
- UDP shutdown can now use a range of ports, from jmeterengine.nongui.port=4445 to jmeterengine.nongui.maxport=4455, allowing multiple JMeter instances on the same host without needing to change the port property.
- Updated to httpcore 4.1.3 and httpclient 4.1.2

## Non-functional changes

- 50008
  - Allow BatchSampleSender to be subclassed
- 50450
  - use System.array copy in jacobi solver as, being native, is more performant.
- 50487
  - runSerialTest verifies objects that never need persisting
- Use Thread.setDefaultUncaughtExceptionHandler() instead of private ThreadGroup
- Update to Commons Net 3.0

# Version 2.4

## Summary of main changes

- JMeter now requires at least Java 1.5.
- HTTP Proxy can now record HTTPS sessions.
- JUnit sampler now supports JUnit4 annotations.
- Added JSR223 (javax.script) test elements.
- MailReader Sampler can now use any protocol supported by the underlying implementation.
- An SMTP Sampler has been added.
- JMeter now allows users to provide their own Thread Group implementations.
- View Results Tree now supports more display options, including search and Regex Testing.
- StatCalculator performance is much improved; Aggregate Report etc. need far less memory.
- JMS samplers have been extensively reworked, and should no longer lose messages. Correlation processing is improved. JMS Publisher and Subscriber now support both Topics and Queues.
- Many other improvements have been made, please see below and in the manual.

## Known bugs

The Include Controller has some problems in non-GUI mode. In particular, it can cause a NullPointerException if there are two include controllers with the same name.

Once Only controller behaves correctly under a Thread Group or Loop Controller, but otherwise its behaviour is not consistent (or clearly specified).

The menu item Options / Choose Language does not change all the displayed text to the new language. [The behaviour has improved, but language change is still not fully working] To override the default local language fully, set the JMeter property "language" before starting JMeter.

## Incompatible changes

HTTP Redirect now defaults to "Follow Redirects" rather than "Redirect Automatically". This is to enable JMeter to track cookies that may be sent during redirects. This does not affect existing test plans; it only affects the default for new HTTP Samplers.

The Avalon file format for JMX and JTL files is no longer supported. Any such files will need to be converted by reading them in JMeter 2.3.4 and resaving them.

The XPath Assertion and XPath Extractor elements no longer fetch external DTDs by default; this can be changed in the GUI.

JMSConfigGui has been renamed as JMSSamplerGui. This does not affect existing test plans.

The constructor public SampleResult(SampleResult res) has been changed to become a true "copy constructor". It no longer calls addSubResult(). This may possibly affect some 3rd party add-ons.

## Bug fixes

### HTTP Samplers and Proxy

- 47445
  - Using Proxy with https-spoofing secure cookies need to be unsecured
- 47442
  - Missing replacement of https by http for certain conditions using https-spoofing
- 48451
  - Error in: SoapSampler.setPostHeaders(PostMethod post) in the else branch
- 48542
  - SoapSampler uses wrong response header field to decide if response is gzip encoded
- 48568
  - CookieManager broken for AjpSampler
- 48570
  - AjpSampler doesn't support query parameters (GET/POST)
- 46901
  - HTTP Sampler does not process var/func refs correctly in first file parameter
- 43678
  - Handle META tag http-equiv charset?
- 49294
  - Images not downloaded from redirected-to pages
- 49560
  - wrong "size in bytes" when following redirections

### Other Samplers

- 47420
  - LDAP extended request not closing connections during add request
- 48573
  - LDAPExtSampler directory context handling
- 47870
  - JMSSubscriber fails due to NPE
- 47899
  - NullPointerExceptions in JMS ReceiveSubscriber constructor
- 48144
  - NPE in JMS OnMessageSubscriber
- 47992
  - JMS Point-to-Point Request - Response option doesn't work
- 48579
  - Single Bind does not show config information when LdapExt Sampler is accessed
- 49111
  - "Message With ID Not Found" Error on JMS P2P sampler.
- 47949
  - JMS Subscriber never receives all the messages
- 46142
  - JMS Point-to-Point correlation problems
- 48747
  - TCP Sampler swallows exceptions
- 48709
  - TCP Sampler Config setting "classname" has no effect

### Controllers

- 47385
  - TransactionController should set AllThreads and GroupThreads
- 47940
  - Module controller incorrectly creates the replacement Sub Tree
- 47592
  - Run Thread groups consecutively with "Stop test" on error, JMeter will not mark to finished
- 48786
  - Run Thread groups consecutively: with "Stop test now" on error or manual stop, JMeter leaves the green box active
- 48727
  - Cannot stop test if all thread groups are disabled

### Listeners

- 48603
  - Mailer Visualiser sends two emails for a single failed response
- Correct calculation of min/max/std.dev for aggregated samples (Summary Report)
- 48889
  - Wrong response time with mode=Statistical and num_sample_threshold > 1
- 47398
  - SampleEvents are sent twice over RMI in distributed testing and non gui mode

### Assertions

### Functions

### I18N

### General

- 47646
  - NullPointerException in the "Random Variable" element
- Disallow adding any child elements to JDBC Configuration
- BeanInfoSupport now caches getBeanDescriptor() - should avoid an NPE on non-Sun JVMs when using CSVDataSet (and some other TestBeans)
- 48350
  - Deadlock on distributed testing with 2 clients
- 48901
  - Endless wait by adding Synchronizing Timer
- 49149
  - usermanual/index.html has typo in link to "Regular Expressions" page
- 49394
  - Classcast Exception in ActionRouter.postActionPerformed
- 48136
  - Essential files missing from source tarball.
  Source archives now contain all source files, including source files previously only provided in the binary archives.
- 48331
  - XpathExtractor does not return XML string representations for a Nodeset

## Improvements

### HTTP Samplers

- 47622
  - enable recording of HTTPS sessions
- Allow Proxy Server to be specified on HTTP Sampler GUI and HTTP Config GUI
- 47461
  - Update Cache Manager to handle Expires HTTP header
- 48153
  - Support for Cache-Control and Expires headers
- 47946
  - Proxy should enable Grouping inside a Transaction Controller
- 48300
  - Allow override of IP source address for HTTP HttpClient requests
- 49083
  - collapse '/pathsegment/..' in redirect URLs

### Other samplers

- JUnit sampler now supports JUnit4 tests (using annotations)
- 47900
  - Allow JMS SubscriberSampler to be interrupted
- Added JSR223 Sampler
- 47556
  - JMS-PointToPoint-Sampler Timeout field should use Strings
- 47947
  - Mail Reader Sampler should allow port to be overridden
- 48155
  - Multiple problems / enhancements with JMS protocol classes
- Allow MailReader sampler to use arbitrary protocols
- 45053
  - SMTP-Sampler for JMeter
- 49552
  - Add Message Headers on SMTPSampler
- JMS Publisher and Subscriber now support both Topics and Queues. Added read Timeout to JMS Subscriber. General clean-up of JMS code.

### Controllers

- 47909
  - TransactionController should sum the latency
- 41418
  - Exclude timer duration from Transaction Controller runtime in report
- 48749
  - Allowing custom Thread Groups
- 43389
  - Allow Include files to be found relative to the current JMX file

### Listeners

- Added DataStrippingSample sender - supports "Stripped" and "StrippedBatch" modes.
- Added Comparison Assertion Visualizer
- 47907
  - Improvements (enhancements and I18N) Comparison Assertion and Comparison Visualizer
- 36726
  - add search function to Tree View Listener
- 47869
  - Ability to cleanup fields of SampleResult
- 47952
  - Added JSR223 Listener
- 47474
  - View Results Tree support for plugin renderers
- Allow Idle Time to be saved to sample log files
- 48259
  - Improve StatCalculator performance by using TreeMap
- Listeners using SamplingStatCalculator have much reduced memory needs as the Sample cache has been moved to the new CachingStatCalculator class. In particular, Aggregate Report can now handle large numbers of samples.
- Aggregate Report and Summary Report now allow column headers to be optionally excluded
- 49506
  - Add .csv File Extension in open dialog box from "read from file" functionality of listeners
- 49545
  - Formatted (parsed) view of Sample Result in Results Tree

### Timers, Assertions, Config, Pre- & Post-Processors

- 47338
  - XPath Extractor forces retrieval of document DTD
- Added Comparison Assertion
- 47952
  - Added JSR223 PreProcessor and PostProcessor
- Added JSR223 Assertion
- Added BSF Timer and JSR223 Timer
- 48511
  - add parent,child,all selection to regex extractor
- Add Sampler scope selection to XPathExtractor
- Regular Expression Extractor, Response Assertion and Size Assertion can now be applied to a JMeter variable
- 46790
  - CSV Data Set Config should be able to parse CSV headers

### Functions

- 47565
  - [Function] FileToString

### I18N

- 47938
  - Adding some French translations for new elements
- 48714
  - add new French messages

### General

- 47223
  - Slow Aggregate Report Performance (StatCalculator)
- 47980
  - hostname resolves to 127.0.0.1 - specifying IP not possible
- 47943
  - DisabledComponentRemover is not used in Start class
- HeapDumper class for runtime generation of dumps
- Basic read-only JavaMail provider implementation for reading raw mail files
- 49540
  - Sort "Add" menus alphabetically

## Non-functional changes

- Beanshell, JavaMail and JMS API (Apache Geronimo) jars are now included in the binary archive.
- Add TestBean Table Editor support
- Removed all external libraries from SVN; added download_jars Ant target
- Updated various jar files:
  - BeanShell - 2.0b4 &rArr; 2.0b5
  - Commons Codec - 1.3 &rArr; 1.4
  - Commons-Collections - 3.2 &rArr; 3.2.1
  - JTidy &rArr; r938
  - JUnit - 3.8.2 &rArr; 4.8.1
  - Logkit - 1.2 &rArr; 2.0
  - Xalan Serializer = 2.7.1 (previously erroneously shown as 2.9.1)
  - Xerces xml-apis = 1.3.04 (previously erroneously shown as 2.9.1)
  - Some jar files were renamed.

# Version 2.3.4

## Summary of main changes

This is a minor bug-fix release, mainly to correct some bugs that were accidentally added in 2.3.3.

## Known bugs

The Include Controller has some problems in non-GUI mode. In particular, it can cause a NullPointerException if there are two include controllers with the same name.

Once Only controller behaves correctly under a Thread Group or Loop Controller, but otherwise its behaviour is not consistent (or clearly specified).

The menu item Options / Choose Language does not change all the displayed text to the new language. [The behaviour has improved, but language change is still not fully working] To override the default local language fully, set the JMeter property "language" before starting JMeter.

## Bug fixes

### HTTP Samplers and Proxy

- 47321
  - HTTPSampler2 response timeout not honored

### Other Samplers

- 47290
  - Infinite loop on connection factory lookup (JMS)
- JDBC Sampler should not close Prepared or Callable statements as these are cached

### Controllers

- 39509
  - Once-only controller running twice

### Listeners

- Change ResultCollector to only warn if the directory was not created
- Fix some synchronisation issues in ResultCollector and SampleResult (wrong locks were being used)

### I18N

- Fixed bug introduced in 2.3.3: JMeter does not start up if there is no messages.properties file for the default Locale.

### General

- Fix problems with remote clients - bug introduced in 2.3.3
- 47377
  - Make ClassFinder more robust and close zipfile resources
- Fix some errors in generating the documentation (latent bug revealed in 2.3.3 when Velocity was upgraded)

## Improvements

### Other samplers

- 47266
  - FTP Request Sampler: allow specifying an FTP port, other than the default

# Version 2.3.3

## Summary of main changes

The handling of test closedown is much improved. The gradual "Shutdown" command now waits until all threads have stopped, and does not report an error if threads don't stop within 5 seconds. The immediate "Stop" command can now be used if "Shutdown" takes too long. Also the immediate "Stop" command is able to interrupt samplers which support the new Interruptible interface (e.g. HTTP and SOAP, FTP). This allows immediate completion of pending responses. Non-GUI mode tests can also now be sent a "Shutdown" or "Stop" message. now supports a "Stop Now" action, as do the and Post Processor elements.

HTTP Cookie handling is improved, and HTTP POST can now use variable file names correctly. HTTP, SOAP/XML-RPC and WebService(SOAP) sampler character encodings updated to be more consistent. HTTP Samplers now support connection and response timeouts (requires JVM 1.5 for the HTTP Java sampler). Together with the closedown improvements described above, this should avoid most cases where a test run hangs. Multiple Header Manager elements are now supported for a single HTTP sampler. The Proxy Server is improved, and no longer stores "Host" headers by default.

JDBC Request can optionally save the results of Select statements to variables. JDBC Request now handles quoted strings and UTF-8, and can handle arbitrary variable types.

There are several new functions: __char() function: allows arbitrary Unicode characters to be entered in fields. __unescape() function: allows Java-escaped strings to be used. _unescapeHtml() function: decodes Html-encoded text. __escapeHtml() function: encodes text using Html-encoding. A reference to a missing function - e.g. ${__missing(a)} - is now treated the same as a missing variable. Previously the function name - and leading { - were dropped. This makes it easier to debug test plans.

Some Assertions can now be applied to sub-samples as well as (or instead of) just the parent sample. There is a new Configuration element.

JMS samplers are much improved (see details below). The now supports some additional clients and is a bit more flexible.

Client-server mode has been improved, and the server can optionally use a fixed RMI port, which should help with setting up firewalls.

Various I18N changes have been made; language change works better (though not perfect yet). There are improved French translations as well as new Polish and Brazilian Portuguese translations.

The BeanShell jar is now included with the binary archive; there is no need to download it separately.

## Known bugs

The Include Controller has some problems in non-GUI mode. In particular, it can cause a `NullPointerException` if there are two include controllers with the same name.

Once Only controller behaves correctly under a Thread Group or Loop Controller, but otherwise its behaviour is not consistent (or clearly specified).

The menu item OptionsChoose Language does not change all the displayed text to the new language. [The behaviour has improved, but language change is still not fully working] To override the default local language fully, set the JMeter property "`language`" before starting JMeter.

## Incompatible changes

When loading sample results from a file, previous results are no longer cleared. This allows one to merge multiple files. If the previous behaviour is required, use the menu item Run Clear CtrlShiftE or Run Clear All CtrlE before loading the file.

The test elements "Save Results to a file" and "Generate Summary Results" are now shown as Listeners. They were previously shown as Post-Processors, even though they are implemented as Listeners.

The Cookie Manager no longer saves incoming cookies as variables by default. To save cookies as variables, define the property "`CookieManager.save.cookies=true`". Also, cookies names are prefixed with "`COOKIE_`" before they are stored (this avoids accidental corruption of local variables) To revert to the original behaviour, define the property "`CookieManager.name.prefix=` " (one or more spaces).

The Counter element is now shown as a Configuration element. It was previously shown as a Pre-Processor, even though it is implemented as a Config item.

The above changes only affect the icons that are displayed and the locations in the GUI pop-up menus. They do not affect test plans or test behaviour.

The PreProcessors are now invoked directly by the JMeterThread class, rather than by the TestCompiler#configureSampler() method. (JMeterThread handles the PostProcessors). This does not affect test plans or behaviour, but could perhaps affect 3rd party add-ons (very unlikely).

Moved the Scoping Rules sub-section from Section 3. "Building a Test Plan" to Section 4. "Elements of a test plan"

The While controller now trims leading and trailing spaces from the condition value before it is compared with `LAST`, blank or false.

The "threadName" variable in the _jexl() and __javaScript() functions was previously misspelt as "theadName".

The following deprecated methods were removed from JOrphanUtils: booleanToString(boolean) and valueOf(boolean). Java 1.4+ has these methods in the Boolean class.

The TestElement interface has some new methods:

- void setProperty(String key, String value, String dflt)
- void setProperty(String key, boolean value, boolean dflt)
- void setProperty(String key, int value)
- void setProperty(String key, int value, int dflt)
- int getPropertyAsInt(String key, int defaultValue)

These are implemented in the AbstractTestElement class which all elements should extend so this is unlikely to cause a problem.

## Bug fixes

### HTTP Samplers and Proxy

- 46332
  - HTTP Cookie Manager ignores manually defined cookies (bug introduced in r707810)
- Cookie Manager was not passing cookie policy to runtime threads so they always used compatibility mode
- Add version attribute to JMeter Cookie class (needed for proper cookie support)
- Cookie Manager now saves/restores cookie versions
- Check validity of cookies before storing them.
- HTTPSamplers can now use variables in POSTed file names
- Fix processing of first file name in HTTP POST so functions/variables work (bug introduced with multiple file support)
- 45831
  - WS Sampler reports incorrect throughput if SOAP packet creation fails
- HTTP, SOAP/XML-RPC and WebService(SOAP) sampler character encodings updated to be more consistent
- 46148
  - HTTP sampler fails on SSL requests when logging for jmeter.util is set to DEBUG
- Fix Java 1.6 https error: java.net.SocketException: Unconnected sockets not implemented
- 46838
  - if there was no data, still need to set latency in HTTPSampler
- 46993
  - Saving from Header Manager generates ClassCastException
- 46690
  - handling of 302 redirects with invalid relative paths. JMeter now removes extraneous leading "../" segments (as do many browsers)
- 44521
  - empty variables for a POST in the HTTP Request don't get ignored
- 46977
  - JMeter does not handle HTTP headers not delimited by whitespace
- Fix bug in HTTP file: handling - read bytes, not characters in the default encoding.
- Remove Host from headers saved by the Proxy server, as that will normally be generated by the HTTP stack
- 45199
  - don't try to replace blank variables in Proxy recording
- Change HTTPS spoofing so https: links are replaced even when URL match fails
- 46436
  - Improve error reporting in Proxy Gui
- 46435
  - More verbose error msg for error 501 (Proxy Server)

### Other Samplers

- The "prev" and "sampler" objects are now defined for BSF test elements
- Fix NPE (in DataSourceElement) when using JDBC in client-server mode
- 45425
  - JDBC Request does not support Unicode (changed sampler to use UTF-8)
- 46522
  - Incorrect "Response data" in JDBC sample when column names are missing
- 46821
  - JDBC select request doesn't store the first column in the variables
- 43791
  - ensure QueueReceiver is closed in JMS Point to Point sampler
- 46016
  - avoid possible NPE in JMSSampler
- 46142
  - JMS Receiver now uses MessageID
- 45458
  - Point to Point JMS in combination with authentication
- 45460
  - JMS TestPlan elements depend on resource property
- Various ReceiveSubscriber thread-safety fixes
- JMSPublisher and Subscriber fixes: thread-safety, support dynamic locale changes, locale independence for JMX attribute values
- FTP Sampler now logs out before disconnecting.
- TCP sampler now calls setupTest() and teardownTest() methods
- 45887
  - TCPSampler: timeout property incorrectly set

### Controllers

- Fix NPE when using nested Transaction Controllers with parent samples
- Fix processing of Transaction Controller parent mode so current sampler is set to actual sampler
- 44941
  - Throughput controllers should not share global counters
- 47120
  - Throughput Controller: change percent executions to total executions, the value is stored in a String and interpreted as 1 execution
- 47150
  - ThreadGroup with a loop count of zero causes infinite loop
- 47009
  - Insert parent caused child controller name to be reset
- 47165
  - Using duplicate Module Controller names in command line mode causes NPE

### Listeners

- Mailer Visualizer documentation now agrees with code i.e. failure/success counts need to be exceeded to trigger the mail.
- Mailer Visualizer now shows the failure count
- Mailer Visualiser - fix parsing of multiple e-mail address when using Test button
- 45976
  - incomplete result file when using remote testing with more than 1 server
- Fix Summariser so it works in client server mode
- 34096
  - Duplicate samples not eliminated when writing to CSV files
- Save "Include group Name in Label" setting in Aggregate and Summary reports
- The JMeter variable "sample_variables" is sent to all server instances to ensure the data is available to the client.
- CSVSaveService - check for EOF while reading quoted string

### Assertions

- 45749
  - Response Assertion does not work with a substring that happens to be an invalid RE
- 45904
  - Allow 'Not' Response Assertion to succeed with null sample

### Functions

- Fix regex function - was failing to process $m$mid$n$ correctly
- Protect against possible NPE in RegexFunction if called during test shutdown.
- Avoid NPE if XPath function does not match any nodes
- Correct the variable name "theadName" to "threadName" in the __jexl() and __javaScript() functions
- A reference to a missing function - e.g. ${__missing(a)} - is now treated the same as a missing variable. Previously the function name - and leading { - were dropped.

### I18N

- Fixed language change handling for menus (does not yet work for TestBeans)
- Add HeaderAsPropertyRenderer to support header resource names; use this to fix locale changes in various GUI elements
- 46424
  - corrections to French translation
- 46844
  - "Library" label in test plan are not I18N
- 47064
  - fixes for Mac LAF
- 47127
  - Unable to change language to pl_PL
- 47137
  - Labels in View Results Tree aren't I18N
- 46423
  - I18N of Proxy Recorder
- 45928
  - AJP/1.3 Sampler doesn't retrieve its label from messages.properties

### General

- Prompt to overwrite an existing file when first saving a new test plan
- Amend TestBeans to show the correct popup menu for Listeners
- 45185
  - CSV dataset blank delimiter causes OOM
- Fix incorrect GUI classifications: "Save Results to a file" and "Generate Summary Results" are now shown as Listeners. "Counter" is now shown as a Configuration element.
- 41608
  - misleading warning log message removed
- 46359
  - BSF JavaScript Preprocessor cannot access sampler variable on first iteration (Implement temporary work-round for BSF-22)
- 46407
  - BSF elements do not load script files, attempt to interpret filename as script
- Better handling of Exceptions during test shutdown
- Fix potential thread safety issue in JMeterThread class
- 46491
  - Incorrect value for the last variable in "CSV Data Set Config" (error in processing quoted strings)

## Improvements

### HTTP Samplers

- 45479
  - Support for multiple HTTP Header Manager nodes
- HTTP Samplers now support connection and request timeouts (requires Java 1.5 for Java Http sampler)
- Apache SOAP 2.3.1 does not give access to HTTP response code/message, so WebService sampler now treats an empty response as an error
- Mirror server now supports "X-Sleep" header - if this is set, the responding thread will wait for the specified number of milliseconds
- 45694
  - Support GZIP compressed logs in Access Log Sampler

### Other samplers

- JDBC Request can optionally save the results of Select statements to variables.
- JDBC Request now handles quoted strings.
- JDBC Request now handles arbitrary variable types.
- LDAP result data now formatted with line breaks
- 45200
  - MailReaderSampler: store the whole MIME message in the SamplerResult
- 45571
  - JMS Sampler correlation enhancement
- 46030
  - Extend TCP Sampler to Support Length-Prefixed Binary Data
- Add classname field to TCP Sampler GUIs

### Controllers

- Allow If Controller to use variable expressions (not just Javascript)
- Trim spaces from While Controller condition before comparing against LAST, blank or false

### Listeners

- Save Responses to a file can save the generated filename(s) to variables.
- Add option to skip suffix generation in Save Responses to a File
- 43119
  - Save Responses to file: optionally omit the file number
- Add BSF Listener element
- 47176
  - Monitor Results : improve load status graphic
- 40045
  - Allow Results monitor to select a specific connector
- Read XML JTL files more efficiently - pass samples to visualizers as they are read, rather than saving them all and then processing them

### Assertions, Config, Pre- & Post-Processors

- 45903
  - allow Assertions to apply to sub-samples
- Add Body (unescaped) source option to Regular Expression Extractor.
- Random Variable - new configuration element to create random numeric variables

### Functions

- Add OUT and log variables to __jexl() function
- Use Script to evaluate __jexl() function so can have multiple statements.
- Add log variable to the __javaScript() function
- Added __char() function: allows arbitrary Unicode characters to be entered in fields.
- Added __unescape() function: allows Java-escaped strings to be used.
- Added __unescapeHtml() function: decodes Html-encoded text.
- Added __escapeHtml() function: encodes text using Html-encoding.

### I18N

- 45929
  - improved French translations
- 47132
  - Brazilian Portuguese translations
- 46900
  - Polish translations
- Added locales.add property to allow for new Locales

### General

- Allow spaces in JMeter path names (apply work-round for Java Bug 4496398)
- Process JVM_ARGS last in script files so users can override default settings
- 46636
  - Allow server mode to optionally use a fixed rmi port
- Make some samplers interruptible: HTTP (both), SoapSampler, FTPSampler
- Test Action now supports "Stop Now" action, as do the Thread Group and Result Status Post Processor elements
- The Menu items Stop and Shutdown now behave better. Shutdown will now wait until all threads exit. In GUI mode it can be cancelled and Stop run instead. Stop now reports if some threads will not exit, and exits if running in non-GUI mode
- Add UDP server to wait for shutdown message if running in non-GUI mode; add UDP client to send the message.
- 41209
  - JLabeled* and ToolTips
- Include BeanShell 2.0b4 jar in binary download.

## Non-functional changes

- Introduce AbstractListenerGui class to make it easier to create Listeners with no visual output
- Assertions are run after PostProcessors; change order of pop-up menus accordingly
- Remove unnecessary clone() methods from function classes
- Moved PreProcessor invocation to JMeterThread class
- Made HashTree Map field final
- Improve performance of calling ResultCollector#isSampleWanted() for multiple samples
- Updated to new versions of: xmlgraphics-commons (1.3.1), jdom (1.1), xstream (1.3.1), velocity (1.6.2)

## Version 2.3.2

### Summary of main changes

#### Bug fixes

Version 2.3.1 changed the way binary and text content types were determined as far as the View Results Tree Listener was concerned: originally everything except "image/" content types were considered text, but 2.3.1 introduced a check for specific content types. This has caused problems, as several popular types were omitted and these were no longer shown by default in the Response tab. Rather than try to list all the possible text types, JMeter now just checks for the following binary types:

- image/*
- audio/*
- video/*

All other types are now assumed to be text.

JMeter 2.3.1 introduced a bug in the Cookie Manager - if "Clear Cookie each iteration" was selected, all threads would see the same cookies. This bug has been corrected.

#### Improvements

The Proxy server can now record binary requests. By default the content types application/x-amf and application/x-java-serialized-object will be treated as binary and saved in a file. To change the content types, update the property proxy.binary.types.

The CSV Dataset configuration element has new file sharing options: per thread group, per thread, per identifier. This allows for more flexible file processing, e.g. each thread can process the same data in the same order.

Switch Controller now works properly with functions and variables, and the condition can now be a name instead of a number. Simple Controller now works properly under a While Controller

CSV fields in JTL files can now contain delimiters. CSV and XML files can now contain additional variables (define the JMeter property sample_variables).

Response Assertion can now match on substrings (i.e. not regular expression). Regex extractor can operate on variables.

XPath processing is improved; Tidy errors are handled better.

Save Table Data buttons added to Summary and Aggregate reports to allow easy saving of the calculated data.

HTTP samplers can now save just the MD5 hash of responses, rather than the entire response. As a special case, if the HTTP Sampler path starts with "http://" or "https://" then this is used as the full URL, overriding the host and port fields. The HTTP Samplers can now POST multiple files. Webservice(SOAP) Sampler can now load local WSDL files using the "file:" protocol.

A simple HTTP Cache Manager has been added. This needs further development.

View Results Tree Listener now uses Tidy to display XML. This should allow more content to be displayed successfully. It also avoids the need to download remote DTD files, which can slow the rendering considerably.

MailReader sampler now supports POP3S and IMAPS protocols. Individual mails are now added as sub-samples.

Various improvements to the BSF Sampler: now supports Jexl, and Javascript bug works properly. Added BSF PreProcessor, PostProcessor and Assertion test elements. All now have access to "props" JMeter Properties object.

Number of classes loaded in non-GUI mode is much reduced.

### Known bugs

The Include Controller has some problems in non-GUI mode. In particular, it can cause a NullPointerException if there are two include controllers with the same name.

Once Only controller behaves OK under a Thread Group or Loop Controller, but otherwise its behaviour is not consistent (or clearly specified).

The menu item Options / Choose Language does not change all the displayed text to the new language. To override the default local language, set the JMeter property "language" before starting JMeter.

### Incompatible changes

- To reduce the number of classes loaded in non-GUI mode, Functions will only be found if their classname contains the string '.functions.' and does not contain the string '.gui.'. All existing JMeter functions conform to this restriction. To revert to earlier behaviour, comment or change the properties classfinder.functions.* in jmeter.properties.
- The reference value parameter for intSum() is now optional. As a consequence, if a variable name is used, it must not be a valid integer.
- The supplied TCPClient implementation no longer treats tcp.eolByte=0 as special. To skip EOL checking, set tcp.eolByte=1000 (or some other value which is not a valid byte)
- Leading and trailing spaces are trimmed from variable names in function calls. For example, ${__Random(1,63,&nbsp;LOTTERY&nbsp;)} will use the variable 'LOTTERY' rather than '&nbsp;LOTTERY&nbsp;'.
- Synchronization has been removed from the RunningSample class (it was not fully threadsafe anyway). Developers of 3rd party add-ons that use the class may need to synchronize access.

### Bug fixes

- Check that the CSV delimiter is reasonable.
- Fix Switch Controller to work properly with functions and variables
- 44011
  - application/soap+xml not treated as a text type
- 43427
  - Simple Controller is only partly executed in While loop
- 33954
  - Stack Overflow in If/While controllers (may have been fixed previously)
- 44022
  - Memory Leak when closing test plan
- 44042
  - Regression in Cookie Manager (Bug introduced in 2.3.1)
- 41028
  - JMeter server doesn't alert the user when the host is defined as a loopback address
- 44142
  - Function __machineName causes NPE if parameters are omitted.
- 44144
  - JMS point-to-point: request response test does not work
- 44314
  - Not possible to add more than one SyncTimer
- Capture Tidy console error output and log it
- Fix problems using Tidy(tolerant parser) in XPath Assertion and XPath Extractor
- 44374
  - improve timer calculation
- Regular Expression Extractor now deletes all stale variables from previous matches.
- 44707
  - Running remote test changes internal test plan
- 44625
  - Cannot have two or more FTP samplers with different "put" and "get" actions
- 40850
  - BeanShell memory leak
- Ensure ResponseCode and ResponseMessage are set for successful JDBC samples
- FTPSampler now detects and reports failure to open the remote file
- Class directories defined in search_paths and user.classpath no longer need trailing "/"
- 44852
  SOAP/ XML-RPC Request does not show Request details in View Results Tree
- WebService(SOAP) Sampler ResponseData now includes the EOLs sent by server
- 44910
  - close previous socket (if any) in TCP Sampler
- 44912
  - Filter not working in Log Parser
- The BeanShell and BSF component documentation made some incorrect references to the "SampleResponse" object; this has been corrected to "SampleResult"
- BSF Sampler now works properly with Javascript
- Test Action "Stop Test" now works
- 42833
  - Argument class uses LinkedHashMap in getArgumentsAsMap() to preserve ordering
- 45093
  - SizeAssertion did not call getBytes()
- 45007
  - Rewrite Location headers when using Proxy HTTPS spoofing
- Use CRLF rather than LF in Proxy when returning headers to the client
- 45007
  - fix content length header if content may have been changed

### Improvements

- CSV files can now handle fields with embedded delimiters.
- longSum() function added
- 43382
  - configure Tidy output (warnings, errors) for XPath Assertion and Post-Processor
- 43984
  - trim spaces from port field
- Add optional comment to __log() function
- Make Random function variable name optional
- Reduce class loading in non-GUI mode by only looking for Functions in class names that contain '.functions.' and don't contain '.gui.'
- 43379
  - Switch Controller now supports selection by name as well as number
- Can specify list of variable names to be written to JTL files (CSV and XML format)
- Now checks that the remoteStart options -r and -R are only used with non_GUI -n option
- 44184
  - Allow header to be saved with Aggregate Graph data
- Added "Save Table Data" buttons to Aggregate and Summary Reports - save table as CSV format with header
- Allow most functions to be used on the Test Plan. Note __evalVar(), __split() and __regex() cannot be used on the Test Plan.
- Allow Global properties to be loaded from a file, e.g. -Gglobal.properties
- Add "Substring" option to Response Assertion
- 44378
  - Turkish localisation
- Add optional output variable name to Jexl function
- Add application/vnd.wap.xhtml+xml as a text type
- Add means to override maximum display size in View Results Tree - set the property: view.results.tree.max_size
- Use Tidy to display XML in View Results Tree Listener (avoids fetching DTDs)
- 44487
  - German translation
- As a special case, if the HTTP Sampler path starts with "http://" or "https://" then this is used as the full URL.
- 44575
  - Result Saver can now save only successful results
- 44650
  - CSV Dataset now handles quoted column values
- 44600
  - 1-ms resolution timer when running with Java 1.5+
- 44632
  - Text input enhancement to FTP Sampler
- 42204
  - add thread group name to Aggregate and Summary reports
- FTP Sampler sets latency = time to login
- FTP Sampler sets a URL if it can
- 41921
  - add option for samplers to store MD5 of response; done for HTTP Samplers.
- Regex Function can now also be applied to a variable rather than just the previous sample result.
- Remove HTML Parameter Mask,HTTP User Parameter Modifier from menus as they are deprecated
- 44807
  - allow session ids to be terminated by backslash
- 44784
  - allow for broken server returning additional charset
- Added TESTSTART.MS property / variable = test start time in milliseconds
- Add POP3S and IMAPS protocols to Mail Reader Sampler.
- Mail Reader Sampler now creates a sub-sample for each mail.
- The supplied TCPClient implementation no longer treats tcp.eolByte=0 as special. To skip EOL checking, set tcp.eolByte=1000 (or some other value which is not a valid byte)
- JUnit sampler GUI now also finds Test classes defined in user.classpath
- Leading and trailing spaces are trimmed from variable names in function calls. For example, ${__Random(1,63,&nbsp;LOTTERY&nbsp;)} will use the variable 'LOTTERY' rather than '&nbsp;LOTTERY&nbsp;'
- Webservice(SOAP) Sampler can now load local WSDL files using the file: protocol
- 44872
  - Add "All Files" filter to Open File dialogs
- Mirror server can now be run independently (mirror-server.cmd and mirror-server.sh)
- 19128
  - Added multiple file POST support to HTTP Samplers
- Allow use of special name LAST to mean the last test run; applies to -t, -l, -j flags
- 44418
  /42178 - CSV Dataset file handling improvements
- Give BeanShell, Javascript and Jexl functions access to JMeter properties via the "props" object
- Give BSF Sampler access to JMeter Properties via "props" object
- Add Jexl as a supported BSF Sampler language
- Give Beanshell test elements access to JMeter Properties via "props" object
- Added BSF PreProcessor, PostProcessor and Assertion test elements
- All BSF elements now have access to System.out via the variable "OUT"
- Summariser updated to handle variable names
- Synchronisation added to Summary and Aggregate Report to try to prevent occasional lost samples
- 44808
  ,39641 - Proxy support for binary requests
- 28502
  - HTTP Resource Cache

### Non-functional changes

- Better handling of MirrorServer startup problems and improved unit test.
- Build process now detects missing 3rd party libraries and reports need for both binary and source archives
- Skip BeanShell tests if jar is not present
- Update to Xerces 2.9.1, Xalan 2.7.1, Commons IO 1.4, Commons Lang 2.4, Commons-Logging 1.1.1, XStream 1.3, XPP3 1.1.4c
- Use properties for log/logn function descriptions
- Check that all jmx files in the demos directory can be loaded OK
- Update copyright to 2008; use copy tag instead of numeric character in HTML output
- Methods called from constructors must not be overridable: make GUI init methods private
- Make static variables final if possible
- Split changes into current and previous

### Version 2.3.1

#### Summary of changes

##### JMeter Proxy

The Proxy spoof function was broken in 2.3; it has been fixed. Spoof now supports an optional parameter to limit spoofing to particular URLs. This is useful for HTTPS pages that have insecure content - e.g. images/stylesheets may be accessed using HTTP. Spoofed responses now drop the default port (443) from https links to make them work better.

Ignored proxy samples are now visible in Listeners - the label is enclosed in [ and ] as an indication. Proxy documentation has been improved.

##### GUI changes

The Add menus show element types in the order in which they are processed - see Test Plan Execution Order. It is no longer possible to add test elements to inappropriate parts of the tree - e.g. samplers cannot be added directly under a test plan. This also applies to Paste and drag and drop.

The File menu now supports a "Revert" option, which reloads the current file. Also the last few file names used are remembered for easy reloading.

The Options Menu now supports Collapse All and Expand All items to collapse and expand the test tree.

##### Remote testing

The JMeter server now starts the RMI server directly (by default). This simplifies testing, and means that the RMI server will be stopped when the server stops.

Functions can now be used in Listener filenames (variables do not work).

Command-line option -G can now be used to define properties for remote servers. Option -X can be used to stop a remote server after a non-GUI run. Server can be set to automatically exit after a single test (set property server.exitaftertest=true).

##### Other enhancements

JMeter startup no longer loads as many classes; this should reduce memory requirements.

Parameter and file support added to all BeanShell elements. Javascript function now supports access to JMeter objects; Jexl function always did have access, but the documentation has now been included. New functions __eval() and __evalVar() for evaluating variables.

CSV files with the correct header column names are now automatically recognised when loaded. There is no need to configure the properties.

The hostname can now be saved in CSV and XML output files. New "Successes only" option added when saving result files. Errors / Successes only option is now supported when loading XML and CSV files.

General documentation improvements.

##### HTTP

PUT and DELETE should now work properly. Cookie Manager no longer clears manually entered cookies.

Now handles the META tag http-equiv charset

##### JDBC

JDBC Sampler now allows INOUT and OUT parameters for Called procedures. JDBC Sampler now allows per-thread connections - set Max Connections = 0 in JDBC Config.

#### Incompatible changes

- JMeter server now creates the RMI registry by default. If the RMI registry has already been started externally, this will generate a warning message, but the server will continue. This should not affect JMeter testing. However, if you are also using the RMI registry for other applications there may be problems. For example, when the JMeter server shuts down it will stop the RMI registry. Also user-written command files may need to be adjusted (the ones supplied with JMeter have been updated). To revert to the earlier behaviour, define the JMeter property: server.rmi.create=false.
- The Proxy server removes If-Modified-Since and If-None-Match headers from generated Header Managers. To revert to the previous behaviour, define the property proxy.headers.remove with no value

#### Bug fixes

- 43430
  - Count of active threads is incorrect for remote samples
- Throughput Controller was not working for "all thread" counts
- If a POST body is built from parameter values only, these are now encoded if the checkbox is set.
- 43584
  - Assertion Failure Message contains a comma that is also used as the delimiter for CSV files
- HTTP Mirror Server now always returns the exact same content, it used to return incorrect data if UTF-8 encoding was used for HTTP POST body, for example
- 43612
  - HTTP PUT does not honor request parameters
- 43694
  - ForEach Controller (empty collection processing error)
- 42012
  - Variable Listener filenames do not get processed in remote tests. Filenames can now include function references; variable references do not work.
- Ensure Listener nodes get own save configuration when copy-pasted
- Correct Proxy Server include and exclude matching description - port and query are included, contrary to previously documented.
- Aggregate Graph and Aggregate Report Column Header is KB/Sec; fixed the values to be KB rather than bytes
- Fix SamplingStatCalculator so it no longer adds elapsed time to endTime, as this is handled by SampleResult. This corrects discrepancies between Summary Report and Aggregate Report throughput calculation.
- Default HTTPSampleResult to ISO-8859-1 encoding
- Fix default encoding for blank encoding
- Fix Https spoofing (port problem) which was broken in 2.3
- Fix HTTP (Java) sampler so http.java.sampler.retries means retries, i.e. does not include initial try
- Fix SampleResult dataType checking to better detect TEXT documents

#### Improvements

- Add run_gui Ant target, to package and then start the JMeter GUI from Ant
- Add File&rarr;Revert to easily drop the current changes and reload the project file currently loaded
- 31366
  - Remember recently opened file(s)
- 43351
  - Add support for Parameters and script file to all BeanShell test elements
- SaveService no longer needs to instantiate classes
- New functions: __eval() and __evalVar()
- Menu items now appear in execution order
- Test Plan items can now only be dropped/pasted/merged into parts of the tree where they are allowed
- Property Display to show the value of System and JMeter properties and allow them to be changed
- 43451
  - Allow Regex Extractor to operate on Response Code/Message
- JDBC Sampler now allows INOUT and OUT parameters for Called procedures
- JDBC Sampler now allows per-thread connections
- Cookie Manager not longer clears cookies defined in the GUI
- HTTP Parameters without names are ignored (except for POST requests with no file)
- "Save Selection As" added to main menu; now checks only item is selected
- Test Plan now has Paste menu item (paste was already supported via ^V)
- If the default delimiter does not work when loading a CSV file, guess the delimiter by analysing the header line.
- Add optional "loopback" protocol for HttpClient sampler
- HTTP Mirror Server now supports blocking waiting for more data to appear, if content-length header is present in request
- HTTP Mirror Server GUI now has the Start and Stop buttons in a more visible place
- Server mode now creates the RMI registry; to disable set the JMeter property server.rmi.create=false
- HTTP Sampler now supports using MIME Type field to specify content-type request header when body is constructed from parameter values
- Enable exit after a single server test - define JMeter property server.exitaftertest=true
- Added -G option to set properties in remote servers
- Added -X option to stop remote servers after non-GUI run
- 43485
  - Ability to specify keep-alive on SOAP/XML-RPC request
- 43678
  - Handle META tag http-equiv charset
- 42555
  - [I18N] Proposed corrections for the french translation
- 43727
  - Test Action does not support variables or functions
- The Proxy server removes If-Modified-Since and If-None-Match headers from generated Header Managers by default. To change the list of removed headers, define the property proxy.headers.remove as a comma-separated list of headers to remove
- The javaScript function now has access to JMeter variables and context etc. See JavaScript function
- Use drop-down list for BSF Sampler language field
- Add hostname to items that can be saved in CSV and XML output files.
- Errors only flag is now supported when loading XML and CSV files
- Ensure ResultCollector uses SaveService encoding
- Proxy now rejects attempts to use it with https
- Proxy spoofing can now use RE matching to determine which urls to spoof (useful if images are not https)
- Proxy spoofing now drops the default HTTPS port (443) when converting https: links to http:
- Add Successes Only logging and display
- The JMeter log file name is formatted as a SimpleDateFormat (applied to the current date) if it contains paired single-quotes, .e.g. 'jmeter_'yyyyMMddHHmmss'.log'
- Added Collapse All and Expand All Option menu items
- Allow optional definition of extra content-types that are viewable as text

#### Non-functional Improvements

- Functor code tightened up; Functor can now be used with interfaces, as well as pre-defined targets and parameters.
- Save graphics function now prompts before overwriting an existing file
- Debug Sampler and Debug PostProcessor added.
- Fixed up method names in Calculator and SamplingStatCalculator
- Tidied up Listener documentation.

### Version 2.3

### Fixes since 2.3RC4

#### Bug fixes

- Fix NPE in SampleResultConverter - XStream PrettyPrintWriter cannot handle nulls
- If Java HTTP sampler sees null ResponseMessage, replace with HTTP header
- 43332
  - 2.3RC4 does not clear Guis based on TestBean
- 42948
  - Problems with Proxy gui table fields in Java 1.6
- Fixup broken jmeter-server script
- 43364
  - option to revert If Controller to pre 2.3RC3 behaviour
- 43449
  - Statistical Remote mode does not handle Latency
- 43450
  (partial fix) - Allow SampleCount and ErrorCount to be saved to/restored from files

#### Improvements

- Add nameSpace option to XPath extractor
- Add NULL parameter option to JDBC sampler
- Add documentation links for Rhino and BeanShell to functions; clarify variables and properties
- Ensure uncaught exceptions are logged
- Look for user.properties and system.properties in JMeter bin directory if not found locally

#### Fixes since 2.3RC3

- Fixed NPE in Summariser (bug introduced in 2.3RC3)
- Fixed setup of proxy port (bug introduced in 2.3RC3)
- Fixed errors when running non-GUI on a headless host (bug introduced in 2.3RC3)
- 43054
  - SSLManager causes stress tests to saturate and crash (bug introduced in 2.3RC3)
- Clarified HTTP Request Defaults usage of the port field
- 43006
  - NPE if icon.properties file not found
- 42918
  - Size Assertion now treats an empty response as having zero length
- 43007
  - Test ends before all threadgroups started
- Fix possible NPE in HTTPSampler2 if 302 does not have Location header.
- 42919
  - Failure Message blank in CSV output [now records first non-blank message]
- Add link to Extending JMeter PDF
- Allow for quoted charset in Content-Type parsing
- 39792
  - ClientJMeter synchronisation needed
- 43122
  - GUI changes not always picked up when short-cut keys used (bug introduced in 2.3RC3)
- 42947
  - TestBeanGUI changes not picked up when short-cut keys used
- Added serializer.jar (needed for update to xalan 2.7.0)
- 38687
  - Module controller does not work in non-GUI mode

#### Improvements since 2.3RC3

- Add stop thread option to CSV Dataset
- Updated commons-httpclient to 3.1
- 28715
  - allow variable cookie values (set CookieManager.allow_variable_cookies=false to disable)
- 40873
  - add JMS point-to-point non-persistent delivery option
- 43283
  - Save action adds .jmx if not present; checks for existing file on Save As
- ControlA key does not work for Save All As; changed to ControlShiftS
- 40991
  - Allow Assertions to check Headers

### Version 2.3RC3

#### Known problems/restrictions:

The JMeter remote server does not support multiple concurrent tests - each remote test should be run in a separate server. Otherwise tests may fail with random Exceptions, e.g. ConcurrentModification Exception in StandardJMeterEngine. See 43168.

The default HTTP Request (not HTTPClient) sampler may not work for HTTPS connections via a proxy. This appears to be due to a Java bug, see 39337. To avoid the problem, try a more recent version of Java, or switch to the HTTPClient version of the HTTP Request sampler.

Transaction Controller parent mode does not support nested Transaction Controllers. Doing so may cause a Null Pointer Exception in TestCompiler.

Thread active counts are always zero in CSV and XML files when running remote tests.

The property file_format.testlog=2.1 is treated the same as 2.2. However JMeter does honour the 3 testplan versions.

22510 - JMeter always uses the first entry in the keystore.

Remote mode does not work if JMeter is installed in a directory where the path name contains spaces.

BeanShell test elements leak memory. This can be reduced by using a file instead of including the script in the test element.

Variables and functions do not work in Listeners in client-server (remote) mode so they cannot be used to name log files in client-server mode.

CSV Dataset variables are defined after configuration processing is completed, so they cannot be used for other configuration items such as JDBC Config. (see 40394)

#### Summary of changes (for more details, see below)

Some of the main enhancements are:

- Htmlparser 2.0 now used for parsing
- HTTP Authorization now supports domain and realm
- HttpClient options can be specified via httpclient.parameters file
- HttpClient now behaves the same as Java Http for SSL certificates
- HTTP Mirror Server to allow local testing of HTTP samplers
- HTTP Proxy supports XML-RPC recording, and other proxy improvements
- __V() function allows support of nested variable references
- LDAP Ext sampler optionally parses result sets and supports secure mode
- FTP Sampler supports Ascii/Binary mode and upload
- Transaction Controller now optionally generates a Sample with subresults
- HTTPS session contexts are now per-thread, rather than shared. This gives better emulation of multiple users
- BeanShell elements now support ThreadListener and TestListener interfaces
- Coloured icons in Tree View Listener and elsewhere to better differentiate failed samples.

The main bug fixes are:

- HTTPS (SSL) handling now much improved
- Various Remote mode bugs fixed
- ControlC and ControlV now work in the test tree
- Latency and Encoding now available in CSV log output
- Test elements no longer default to previous contents; test elements no longer cleared when changing language.

#### Incompatible changes (usage):

N.B. The javax.net.ssl properties have been moved from jmeter.properties to system.properties, and will no longer work if defined in jmeter.properties.
The new arrangement is more flexible, as it allows arbitrary system properties to be defined.

SSL session contexts are now created per-thread, rather than being shared. This generates a more realistic load for HTTPS tests. The change is likely to slow down tests with many SSL threads. The original behaviour can be enabled by setting the JMeter property:

    https.sessioncontext.shared=true

The LDAP Extended Sampler now uses the same panel for both Thread Bind and Single-Bind tests. This means that any tests using the Single-bind test will need to be updated to set the username and password.

41140: JMeterThread behaviour was changed so that PostProcessors are run in forward order (as they appear in the test plan) rather than reverse order as previously. The original behaviour can be restored by setting the following JMeter property:
jmeterthread.reversePostProcessors=true

The HTTP Authorization Manager now has extra columns for domain and realm, so the temporary work-round of using '\' and '@' in the username to delimit the domain and realm has been removed.

ControlZ no longer used for Remote Start All - this now uses ControlShiftR

HttpClient now uses pre-emptive authentication. This can be changed by setting the following:

    jmeter.properties:
    httpclient.parameters.file=httpclient.parameters

    httpclient.parameters:
    http.authentication.preemptive$Boolean=false

The port field in HTTP Request Defaults is no longer ignored for https samplers if it is set to 80.

#### Incompatible changes (development):

N.B.The clear() method was defined in the following interfaces: Clearable, JMeterGUIComponent and TestElement. The methods serve different purposes, so two of them were renamed: the Clearable method is now clearData() and the JMeterGUIComponent method is now clearGui(). 3rd party add-ons may need to be rebuilt.

Calculator and SamplingStatCalculator classes no longer provide any formatting of their data. Formatting should now be done using the jorphan.gui Renderer classes.

Removed deprecated method JMeterUtils.split() - use JOrphanUtils version instead.

Removed method saveUsingJPEGEncoder() from SaveGraphicsService. It was unused so far, and used the only Sun-specific class in JMeter.

#### New functionality/improvements:

- Add Domain and Realm support to HTTP Authorization Manager
- HttpClient now behaves the same as the JDK http sampler for invalid certificates etc
- Added httpclient.parameters.file to allow HttpClient parameters to be defined
- 33964
  - Http Requests can send a file as the entire post body if name/type are omitted
- 41705
  - add content-encoding option to HTTP samplers for POST requests
- 40933
  ,40945 - optional RE matching when retrieving embedded resource URLs
- 27780
  - (patch 19936) create multipart/form-data HTTP request without uploading file
- 42098
  - Use specified encoding for parameter values in HTTP GET
- 42506
  - JMeter threads now use independent SSL sessions
- 41707
  - HTTP Proxy XML-RPC support
- 41880
  - Add content-type filtering to HTTP Proxy Server
- 41876
  - Add more options to control what the HTTP Proxy generates
- 42158
  - Improve support for multipart/form-data requests in HTTP Proxy server
- 42173
  - Let HTTP Proxy handle encoding of request, and undecode parameter values
- 42674
  - default to pre-emptive HTTP authorisation if not specified
- Support "file" protocol in HTTP Samplers
- Http Autoredirects are now enabled by default when creating new samplers
- 40103
  - various LDAP enhancements
- 40369
  - LDAP: Stable search results in sampler
- 40381
  - LDAP: more descriptive strings
- BeanShell Post-Processor no longer ignores samples with zero-length result data
- Added beanshell.init.file property to run a BeanShell script at startup
- 39864
  - BeanShell init files now found from current or bin directory
- BeanShell elements now support ThreadListener and TestListener interfaces
- BSF Sampler passes additional variables to the script
- Added timeout for WebService (SOAP) Sampler
- 40825
  - Add JDBC prepared statement support
- Extend JDBC Sampler: Commit, Rollback, AutoCommit
- 41457
  - Add TCP Sampler option to not re-use connections
- 41522
  - Use JUnit sampler name in sample results
- 42223
  - FTP Sampler can now upload files
- 40804
  - Change Counter default to max = Long.MAX_VALUE
- Use property jmeter.home (if present) to override user.dir when starting JMeter
- New -j option to easily change jmeter log file
- HTTP Mirror Server Workbench element
- 41253
  - extend XPathExtractor to work with non-NodeList XPath expressions
- 42088
  - Add XPath Assertion for booleans
- Added __V variable function to resolve nested variable names
- 40369
  - Equals Response Assertion
- 41704
  - Allow charset encoding to be specified for CSV DataSet
- 41259
  - Comment field added to all test elements
- Add standard deviation to Summary Report
- 41873
  - Add name to AssertionResult and display AssertionResult in ViewResultsFullVisualizer
- 36755
  - Save XML test files with UTF-8 encoding
- Use ISO date-time format for Tree View Listener (previously the year was not shown)
- Improve loading of CSV files: if possible, use header to determine format; guess timestamp format if not milliseconds
- 41913
  - TransactionController now creates samples as sub-samples of the transaction
- 42582
  - JSON pretty printing in Tree View Listener
- 40099
  - Enable use of object variable in ForEachController
- 39693
  - View Result Table uses icon instead of check box
- 39717
  - use icons in the results tree
- 42247
  - improve HCI
- Allow user to cancel out of Close dialogue

#### Non-functional improvements:

- Functor calls can now be unit tested
- Replace com.sun.net classes with javax.net
- Extract external jar definitions into build.properties file
- Use specific jar names in build classpaths so errors are detected sooner
- Tidied up ORO calls; now only one cache, size given by oro.patterncache.size, default 1000
- 42326
  - Order of elements in .jmx files changes

#### External jar updates:

- Htmlparser 2.0-20060923
- xstream 1.2.1/xpp3_min-1.1.3.4.O
- Batik 1.6
- BSF 2.4.0
- commons-collections 3.2
- commons-httpclient-3.1-rc1
- commons-jexl 1.1
- commons-lang-2.3 (added)
- JUnit 3.8.2
- velocity 1.5
- commons-io 1.3.1 (added)

#### Bug fixes:

- 39773
  - NTLM now needs local host name - fix other call
- 40438
  - setting "httpclient.localaddress" has no effect
- 40419
  - Chinese messages translation fix
- 39861
  - fix typo
- 40562
  - redirects no longer invoke RE post processors
- 40451
  - set label if not set by sampler
- Fix NPE in CounterConfig.java in Remote mode
- 40791
  - Calculator used by Summary Report
- 40772
  - correctly parse missing fields in CSV log files
- 40773
  - XML log file timestamp not parsed correctly
- 41029
  - JMeter -t fails to close input JMX file
- 40954
  - Statistical mode in distributed testing shows wrong results
- Fix ClassCast Exception when using sampler that returns null, e..g TestAction
- 41140
  - Post-processors are run in reverse order
- 41277
  - add Latency and Encoding to CSV output
- 41414
  - Mac OS X may add extra item to -jar classpath
- Fix NPE when saving thread counts in remote testing
- 34261
  - NPE in HtmlParser (allow for missing attributes)
- 40100
  - check FileServer type before calling close
- 39887
  - jmeter.util.SSLManager: Couldn't load keystore error message
- 41543
  - exception when webserver returns "500 Internal Server Error" and content-length is 0
- 41416
  - don't use chunked input for text-box input in SOAP-RPC sampler
- 39827
  - SOAP Sampler content length for files
- Fix Class cast exception in Clear.java
- 40383
  - don't set content-type if already set
- Mailer Visualiser test button now works if test plan has not yet been saved
- 36959
  - Shortcuts "ctrl c" and "ctrl v" don't work on the tree elements
- 40696
  - retrieve embedded resources from STYLE URL() attributes
- 41568
  - Problem when running tests remotely when using a 'Counter'
- Fixed various classes that assumed timestamps were always end time stamps:
  - SamplingStatCalculator
  - JTLData
  - RunningSample
- 40325
  - allow specification of proxyuser and proxypassword for WebServiceSampler
- Change HttpClient proxy definition to use NTCredentials; added http.proxyDomain property for this
- 40371
  - response assertion "pattern to test" scrollbar problem
- 40589
  - Unescape XML entities in embedded URLs
- 41902
  - NPE in HTTPSampler when responseCode = -1
- 41903
  - ViewResultsFullVisualizer : status column looks bad when you do copy and paste
- 41837
  - Parameter value corruption in proxy
- 41905
  - Can't cut/paste/select Header Manager fields in Java 1.6
- 41928
  - Make all request headers sent by HTTP Request sampler appear in sample result
- 41944
  - Subresults not handled recursively by ResultSaver
- 42022
  - HTTPSampler does not allow multiple headers of same name
- 42019
  - Content type not stored in redirected HTTP request with subresults
- 42057
  - connection can be null if method is null
- 41518
  - JMeter changes the HTTP header Content Type for POST request
- 42156
  - HTTPRequest HTTPClient incorrectly urlencodes parameter value in POST
- 42184
  - Number of bytes for subsamples not added to sample when sub samples are added
- 42185
  - If a HTTP Sampler follows a redirect, and is set up to download images, then images are downloaded multiple times
- 39808
  - Invalid redirect causes incorrect sample time
- 42267
  - Concurrent GUI update failure in Proxy Recording
- 30120
  - Name of simple controller is resetted if a new simple controller is added as child
- 41078
  - merge results in name change of test plan
- 40077
  - Creating new Elements copies values from Existing elements
- 42325
  - Implement the "clear" method for the LogicControllers
- 25441
  - TestPlan changes sometimes detected incorrectly (isDirty)
- 39734
  - Listeners shared after copy/paste operation
- 40851
  - Loop controller with 0 iterations, stops evaluating the iterations field
- 24684
  - remote startup problems if spaces in the path of the jmeter
- Use Listener configuration when loading CSV data files
- Function methods setParameters() need to be synchronized
- Fix CLI long optional argument to require "=" (as for short options)
- Fix SlowSocket to work properly with Httpclient (both http and https)
- 41612
  - Loop nested in If Controller behaves erratically
- 42232
  - changing language clears UDV contents
- Jexl function did not allow variables

### Version 2.2

#### Incompatible changes:

The time stamp is now set to the sampler start time (it was the end). To revert to the previous behaviour, change the property sampleresult.timestamp.start to false (or comment it)

The JMX output format has been simplified and files are not backwards compatible

The JMeter.BAT file no longer changes directory to JMeter home, but runs from the current working directory. The jmeter-n.bat and jmeter-t.bat files change to the directory containing the input file.

Listeners are now started slightly later in order to allow variable names to be used. This may cause some problems; if so define the following in jmeter.properties:
jmeterengine.startlistenerslater=false

The GUI now expands the tree by default when loading a test plan. This can be disabled by setting the JMeter property onload.expandtree=false

#### Known problems:

- Post-processors run in reverse order (see 41140)
- Module Controller does not work in non-GUI mode
- Aggregate Report and some other listeners use increasing amounts of memory as a test progresses
- Does not always handle non-default encoding properly
- Spaces in the installation path cause problems for client-server mode
- Change of Language does not propagate to all test elements
- SamplingStatCalculator keeps a List of all samples for calculation purposes; this can cause memory exhaustion in long-running tests
- Does not properly handle server certificates if they are expired or not installed locally

#### New functionality:

- Report function
- XPath Extractor Post-Processor. Handles single and multiple matches.
- Simpler JMX file format (2.2)
- BeanshellSampler code can update ResponseData directly
- 37490
  - Allow UDV as delay in Duration Assertion
- Slow connection emulation for HttpClient
- Enhanced JUnitSampler so that by default assert errors and exceptions are not appended to the error message. Users must explicitly check append in the sampler
- Enhanced the documentation for webservice sampler to explain how it works with CSVDataSet
- Enhanced the documentation for javascript function to explain escaping comma
- Allow CSV Data Set file names to be absolute
- Report Tree compiler errors better
- Don't reset Regex Extractor variable if default is empty
- includecontroller.prefix property added
- Regular Expression Extractor sets group count
- Can now save entire screen as an image, not just the right-hand pane
- 38901
  - Add optional SOAPAction header to SOAP Sampler
- New BeanShell test elements: Timer, PreProcessor, PostProcessor, Listener
- __split() function now clears next variable, so it can be used with ForEach Controller
- 38682
  - add CallableStatement functionality to JDBC Sampler
- Make it easier to change the RMI/Server port
- Add property jmeter.save.saveservice.xml_pi to provide optional xml processing instruction in JTL files
- Add bytes and URL to items that can be saved in sample log files (XML and CSV)
- The Post-Processor "Save Responses to a File" now saves the generated file name with the sample, and the file name can be included in the sample log file.
- Change jmeter.bat DOS script so it works from any directory
- New -N option to define nonProxyHosts from command-line
- New -S option to define system properties from input file
- 26136
  - allow configuration of local address
- Expand tree by default when loading a test plan - can be disabled by setting property onload.expandtree=false
- 11843
  - URL Rewriter can now cache the session id
- Counter Pre-Processor now supports formatted numbers
- Add support for HEAD PUT OPTIONS TRACE and DELETE methods
- Allow default HTTP implementation to be changed
- Optionally save active thread counts (group and all) to result files
- Variables/functions can now be used in Listener file names
- New __time() function; define START.MS/START.YMD/START.HMS properties and variables
- Add Thread Name to Tree and Table Views
- Add debug functions: What class, debug on, debug off
- Non-caching Calculator - used by Table Visualiser to reduce memory footprint
- Summary Report - similar to Aggregate Report, but uses less memory
- 39580
  - recycle option for CSV Dataset
- 37652
  - support for Ajp Tomcat protocol
- 39626
  - Loading SOAP/XML-RPC requests from file
- 39652
  - Allow truncation of labels on AxisGraph
- Allow use of htmlparser 1.6
- 39656
  - always use SOAP action if it is provided
- Automatically include properties from user.properties file
- Add __jexl() function - evaluates Commons JEXL expressions
- Optionally load JMeter properties from user.properties and system properties from system.properties.
- 39707
  - allow Regex match against URL
- Add start time to Table Visualiser
- HTTP Samplers can now extract embedded resources for any required media types

#### Bug fixes:

- Fix NPE when no module selected in Module Controller
- Fix NPE in XStream when no ResponseData present
- Remove ?xml prefix when running with Java 1.5 and no x-jars
- 37117
  - setProperty() function should return ""; added optional return of original setting
- Fix CSV output time format
- 37140
  - handle encoding better in RegexFunction
- Load all cookies, not just the first; fix class cast exception
- Fix default Cookie path name (remove page name)
- Fixed resultcode attribute name
- 36898
  - apply encoding to RegexExtractor
- Add properties for saving subresults, assertions, latency, samplerData, responseHeaders, requestHeaders & encoding
- 37705
  - Synch Timer now works OK after run is stopped
- 37716
  - Proxy request now handles file Post correctly
- HttpClient Sampler now saves latency
- Fix NPE when using JavaScript function on Test Plan
- Fix Base Href parsing in htmlparser
- 38256
  - handle cookie with no path
- 38391
  - use long when accumulating timer delays
- 38554
  - Random function now uses long numbers
- 35224
  - allow duplicate attributes for LDAP sampler
- 38693
  - Webservice sampler can now use https protocol
- 38646
  - Regex Extractor now clears old variables on match failure
- 38640
  - fix WebService Sampler pooling
- 38474
  - HTML Link Parser doesn't follow frame links
- 36430
  - Counter now uses long rather than int to increase the range
- 38302
  - fix XPath function
- 38748
  - JDBC DataSourceElement fails with remote testing
- 38902
  - sometimes -1 seems to be returned unnecessarily for response code
- 38840
  - make XML Assertion thread-safe
- 38681
  - Include controller now works in non-GUI mode
- Add write(OS,IS) implementation to TCPClientImpl
- Sample Result converter saves response code as "rc". Previously it saved as "rs" but read with "rc"; it will now also read with "rc". The XSL stylesheets also now accept either "rc" or "rs"
- Fix counter function so each counter instance is independent (previously the per-user counters were shared between instances of the function)
- Fix TestBean Examples so that they work
- Fix JTidy parser so it does not skip body tags with background images
- Fix HtmlParser parser so it catches all background images
- 39252
  set SoapSampler sample result from XML data
- 38694
  - WebServiceSampler not setting data encoding correctly
- Result Collector now closes input files read by listeners
- 25505
  - First HTTP sampling fails with "HTTPS hostname wrong: should be 'localhost'"
- 25236
  - remove double scrollbar from Assertion Result Listener
- 38234
  - Graph Listener divide by zero problem
- 38824
  - clarify behaviour of Ignore Status
- 38250
  - jmeter.properties "language" now supports country suffix, for zh_CN and zh_TW etc
- jmeter.properties file is now closed after it has been read
- 39533
  - StatCalculator added wrong items
- 39599
  - ConcurrentModificationException
- HTTPSampler2 now handles Auto and Follow redirects correctly
- 29481
  - fix reloading sample results so subresults not counted twice
- 30267
  - handle AutoRedirects properly
- 39677
  - allow for space in JMETER_BIN variable
- Use Commons HttpClient cookie parsing and management. Fix various problems with cookie handling.
- 39773
  - NTCredentials needs host name

#### Other changes

- Updated to HTTPClient 3.0 (from 2.0)
- Updated to Commons Collections 3.1
- Improved formatting of Request Data in Tree View
- Expanded user documentation
- Added MANIFEST, NOTICE and LICENSE to all jars
- Extract htmlparser interface into separate jarfile to make it possible to replace the parser
- Removed SQL Config GUI as no longer needed (or working!)
- HTTPSampler no longer logs a warning for Page not found (404)
- StringFromFile now callable as __StringFromFile (as well as _StringFromFile)
- Updated to Commons Logging 1.1

### Version 2.1.1

#### New functionality:

- New Include Controller allows a test plan to reference an external jmx file
- New JUnitSampler added for using JUnit Test classes
- New Aggregate Graph listener is capable of graphing aggregate statistics
- Can provide additional classpath entries using the property user.classpath and on the Test Plan element

#### Bug fixes:

- AccessLog Sampler and JDBC test elements populated correctly from 2.0 test plans
- BSF Sampler now populates filename and parameters from saved test plan
- 36500
  - handle missing data more gracefully in WebServiceSampler
- 35546
  - add merge to right-click menu
- 36642
  - Summariser stopped working in 2.1
- 36618
  - CSV header line did not match saved data
- JMeter should now run under JVM 1.3 (but does not build with 1.3)

### Version 2.1

#### New functionality:

- New Test Script file format - smaller, more compact, more readable
- New Sample Result file format - smaller, more compact
- XSchema Assertion
- XML Tree display
- CSV DataSet Config item
- New JDBC Connection Pool Config Element
- Synchronisation Timer
- setProperty function
- Save response data on error
- Ant JMeter XSLT now optionally shows failed responses and has internal links
- Allow JavaScript variable name to be omitted
- Changed following Samplers to set sample label from sampler name
- All Test elements can be saved as a graphics image to a file
- 35026
  - add RE pattern matching to Proxy
- 34739
  - Enhance constant Throughput timer
- 25052
  - use response encoding to create comparison string in Response Assertion
- New optional icons
- Allow icons to be defined via property files
- New stylesheets for 2.1 format XML test output
- Save samplers, config element and listeners as PNG
- Enhanced support for WSDL processing
- New JMS sampler for topic and queue messages
- How-to for JMS samplers
- 35525
  - Added Spanish localisation
- 30379
  - allow server.rmi.port to be overridden
- enhanced the monitor listener to save the calculated stats
- Functions and variables now work at top level of test plan

#### Bug fixes:

- 34586
  - XPath always remained as /
- BeanShellInterpreter did not handle null objects properly
- Fix Chinese resource bundle names
- Save field names if required to CSV files
- Ensure XML file is closed
- Correct icons now displayed for TestBean components
- Allow for missing optional jar(s) in creating menus
- Changed Samplers to set sample label from sampler name as was the case for HTTP
- Fix various samplers to avoid NPEs when incomplete data is provided
- Fix Cookie Manager to use seconds; add debug
- 35067
  - set up filename when using -t option
- Don't substitute TestElement.* properties by UDVs in Proxy
- 35065
  - don't save old extensions in File Saver
- 25413
  - don't enable Restart button unnecessarily
- 35059
  - Runtime Controller stopped working
- Clear up any left-over connections created by LDAP Extended Sampler
- 23248
  - module controller didn't remember stuff between save and reload
- Fix Chinese locales
- 29920
  - change default locale if necessary to ensure default properties are picked up when English is selected.
- Bug fixes for Tomcat monitor captions
- Fixed webservice sampler so it works with user defined variables
- Fixed screen borders for LDAP config GUI elements
- 31184
  - make sure encoding is specified in JDBC sampler
- TCP sampler - only share sockets with same host:port details; correct the manual
- Extract src attribute for embed tags in JTidy and Html Parsers

### Version 2.0.3

#### New functionality:

- XPath Assertion and XPath Function
- Switch Controller
- ForEach Controller can now loop through sets of groups
- Allow CSVRead delimiter to be changed (see jmeter.properties)
- 33920
  - allow additional property files
- 33845
  - allow direct override of Home dir

#### Bug fixes:

- Regex Extractor nested constant not put in correct place 32395
- Start time reset to now if necessary so that delay works OK.
- Missing start/end times in scheduler are assumed to be now, not 1970
- 28661
  - 304 responses not appearing in listeners
- DOS scripts now handle different disks better
- 32345
  - HTTP Rewriter does not work with HTTP Request default
- Catch Runtime Exceptions so an error in one Listener does not affect others
- 33467
  - __threadNum() extracted number wrongly
- 29186
  ,33299 - fix CLI parsing of "-" in second argument
- Fix CLI parse bug: -D arg1=arg2. Log more startup parameters.
- Fix JTidy and HTMLParser parsers to handle form src= and link rel=stylesheet
- JMeterThread now logs Errors to jmeter.log which were appearing on console
- Ensure WhileController condition is dynamically checked
- 32790
  ensure If Controller condition is re-evaluated each time
- 30266
  - document how to display proxy recording responses
- 33921
  - merge should not change file name
- Close file now gives chance to save changes
- 33559
  - fixes to Runtime Controller

#### Other changes:

- To help with variable evaluation, JMeterThread sets "sampling started" a bit earlier (see jmeter.properties)
- 33796
  - delete cookies with null/empty values
- Better checking of parameter count in JavaScript function
- Thread Group now defaults to 1 loop instead of forever
- All Beanshell access is now via a single class; only need BSH jar at run-time
- 32464
  - document Direct Draw settings in jmeter.bat
- 33919
  - increase Counter field sizes
- 32252
  - ForEach was not initialising counters

### Version 2.0.2

#### New functionality:

- While Controller
- BeanShell initialisation scripts
- Result Saver can optionally save failed results only
- Display as HTML has option not to download frames and images etc
- Multiple Tree elements can now be enabled/disabled/copied/pasted at once
- __split() function added
- 28699
  allow Assertion to regard unsuccessful responses - e.g. 404 - as successful
- 29075
  Regex Extractor can now extract data out of http response header as well as the body
- __log() functions can now write to stdout and stderr
- URL Modifier can now optionally ignore query parameters

#### Bug fixes:

- If controller now works after the first false condition 31390
- Regex GUI was losing track of Header/Body checkbox 29853
- Display as HTML now handles frames and relative images
- Right-click open replaced by merge
- Fix some drag and drop problems
- Fixed foreach demo example so it works
- 30741
  SSL password prompt now works again
- StringFromFile now closes files at end of test; start and end now optional as intended
- 31342
  Fixed text of SOAP Sampler headers
- Proxy must now be stopped before it can be removed 25145
- Link Parser now supports BASE href 25490
- 30917
  Classfinder ignores duplicate names
- 22820
  Allow Counter value to be cleared
- 28230
  Fix NPE in HTTP Sampler retrieving embedded resources
- Improve handling of StopTest; catch and log some more errors
- ForEach Controller no longer runs any samples if first variable is not defined
- 28663
  NPE in remote JDBC execution
- 30110
  Deadlock in stopTest processing
- 31696
  Duration not working correctly when using Scheduler
- JMeterContext now uses ThreadLocal - should fix some potential NPE errors

### Version 2.0.1

Bug fix release. TBA.

### Version 2.0

- HTML parsing improved; now has choice of 3 parsers, and most embedded elements can now be detected and downloaded.
- Redirects can now be delegated to URLConnection by defining the JMeter property HTTPSamper.delegateRedirects=true (default is false)
- Stop Thread and Stop Test methods added for Samplers and Assertions etc. Samplers can call setStopThread(true) or setStopTest(true) if they detect an error that needs to stop the thread of the test after the sample has been processed
- Thread Group Gui now has an extra pane to specify what happens after a Sampler error: Continue (as now), Stop Thread or Stop Test. This needs to be extended to a lower level at some stage.
- Added Shutdown to Run Menu. This is the same as Stop except that it lets the Threads finish normally (i.e. after the next sample has been completed)
- Remote samples can be cached until the end of a test by defining the property hold_samples=true when running the server. More work is needed to be able to control this from the GUI
- Proxy server has option to skip recording browser headers
- Proxy restart works better (stop waits for daemon to finish)
- Scheduler ignores start if it has already passed
- Scheduler now has delay function
- added Summariser test element (mainly for non-GUI) testing. This prints summary statistics to System.out and/or the log file every so often (3 minutes by default). Multiple summarisers can be used; samples are accumulated by summariser name.
- Extra Proxy Server options: Create all samplers with keep-alive disabled Add Separator markers between sets of samples Add Response Assertion to first sampler in each set
- Test Plan has a comment field
- Help Page can now be pushed to background
- Separate Function help page
- New / amended functions

- __property() and __P() functions
- __log() and __logn() - for writing to the log file
- _StringFromFile can now process a sequence of files, e.g. dir/file01.txt, dir/file02.txt etc
- _StringFromFile() function can now use a variable or function for the file name

- New / amended Assertions

- Response Assertion now works for URLs, and it handles null data better
- Response Assertion can now match on Response Code and Response message as well
- HTML Assertion using JTidy to check for well-formed HTML

- If Controller (not fully functional yet)
- Transaction Controller (aggregates the times of its children)
- New Samplers

- Basic BSF Sampler (optional)
- BeanShell Sampler (optional, needs to be downloaded from www.beanshell.org
- Basic TCP Sampler

- Optionally start BeanShell server (allows remote access to JMeter variables and methods)

### Version 1.9.1

TBA

### Version 1.9

- Sample result log files can now be in CSV or XML format
- New Event model for notification of iteration events during test plan run
- New Javascript function for executing arbitrary javascript statements
- Many GUI improvements
- New Pre-processors and Post-processors replace Modifiers and Response-Based Modifiers.
- Compatible with jdk1.3
- JMeter functions are now fully recursive and universal (can use functions as parameters to functions)
- Integrated help window now supports hypertext links
- New Random Function
- New XML Assertion
- New LDAP Sampler (alpha code)
- New Ant Task to run JMeter (in extras folder)
- New Java Sampler test implementation (to assist developers)
- More efficient use of memory, faster loading of .jmx files
- New SOAP Sampler (alpha code)
- New Median calculation in Graph Results visualizer
- Default config element added for developer benefit
- Various performance enhancements during test run
- New Simple File recorder for minimal GUI overhead during test run
- New Function: StringFromFile - grabs values from a file
- New Function: CSVRead - grabs multiple values from a file
- Functions now longer need to be encoded - special values should be escaped with "\" if they are literal values
- New cut/copy/paste functionality
- SSL testing should work with less user-fudging, and in non-gui mode
- Mailer Model works in non-gui mode
- New Throughput Controller
- New Module Controller
- Tests can now be scheduled to run from a certain time till a certain time
- Remote JMeter servers can be started from a non-gui client. Also, in gui mode, all remote servers can be started with a single click
- ThreadGroups can now be run either serially or in parallel (default)
- New command line options to override properties
- New Size Assertion

### Version 1.8.1

- Bug Fix Release. Many bugs were fixed.
- Removed redundant "Root" node from test tree.
- Re-introduced Icons in test tree.
- Some re-organization of code to improve build process.
- View Results Tree has added option to view results as web document (still buggy at this point).
- New Total line in Aggregate Listener (still buggy at this point).
- Improvements to ability to change JMeter's Locale settings.
- Improvements to SSL Manager.

### Version 1.8

- Improvement to Aggregate report's calculations.
- Simplified application logging.
- New Duration Assertion.
- Fixed and improved Mailer Visualizer.
- Improvements to HTTP Sampler's recovery of resources (sockets and file handles).
- Improving JMeter's internal handling of test start/stop.
- Fixing and adding options to behavior of Interleave and Random Controllers.
- New Counter config element.
- New User Parameters config element.
- Improved performance of file opener.
- Functions and other elements can access global variables.
- Help system available within JMeter's GUI.
- Test Elements can be disabled.
- Language/Locale can be changed while running JMeter (mostly).
- View Results Tree can be configured to record only errors.
- Various bug fixes.

### Version 1.7.3

- New Functions that provide more ability to change requests dynamically during test runs.
- New language translations in Japanese and German.
- Removed annoying Log4J error messages.
- Improved support for loading JMeter 1.7 version test plan files (.jmx files).
- JMeter now supports proxy servers that require username/password authentication.
- Dialog box indicating test stopping doesn't hang JMeter on problems with stopping test.
- GUI can run multiple remote JMeter servers (fixes GUI bug that prevented this).
- Dialog box to help created function calls in GUI.
- New Keep-alive switch in HTTP Requests to indicate JMeter should or should not use Keep-Alive for sockets.
- HTTP Post requests can have GET style arguments in Path field. Proxy records them correctly now.
- New User-defined test-wide static variables.
- View Results Tree now displays more information, including name of request (matching the name in the test tree) and full request and POST data.
- Removed obsolete View Results Visualizer (use View Results Tree instead).
- Performance enhancements.
- Memory use enhancements.
- Graph visualizer GUI improvements.
- Updates and fixes to Mailer Visualizer.

### Version 1.7.2

- JMeter now notifies user when test has stopped running.
- HTTP Proxy server records HTTP Requests with re-direct turned off.
- HTTP Requests can be instructed to either follow redirects or ignore them.
- Various GUI improvements.
- New Random Controller.
- New SOAP/XML-RPC Sampler.

### Version 1.7.1

- JMeter's architecture revamped for a more complete separation between GUI code and test engine code.
- Use of Avalon code to save test plans to XML as Configuration Objects
- All listeners can save data to file and load same data at later date.

### Version 1.7Beta

- Better XML support for special characters (Tushar Bhatia)
- Non-GUI functioning & Non-GUI test plan execution (Tushar Bhatia)
- Removing Swing dependence from base JMeter classes
- Internationalization (Takashi Okamoto)
- AllTests bug fix (neth6@atozasia.com)
- ClassFinder bug fix (neth6@atozasia.com)
- New Loop Controller
- Proxy Server records HTTP samples from browser (and documented in the user manual)
- Multipart Form support
- HTTP Header class for Header customization
- Extracting HTTP Header information from responses (Jamie Davidson)
- Mailer Visualizer re-added to JMeter
- JMeter now url encodes parameter names and values
- listeners no longer give exceptions if their gui's haven't been initialized
- HTTPS and Authorization working together
- New Http sampling that automatically parses HTML response for images to download, and includes the downloading of these images in total time for request (Neth neth6@atozasia.com)
- HTTP responses from server can be parsed for links and forms, and dynamic data can be extracted and added to test samples at run-time (documented)
- New Ramp-up feature (Jonathan O'Keefe)
- New visualizers (Neth)
- New Assertions for functional testing

### Version 1.6.1

- Fixed saving and loading of test scripts (no more extra lines)
- Can save and load special characters (such as "&" and "<").
- Can save and load timers and listeners.
- Minor bug fix for cookies (if you cookie value contained an "=", then it broke).
- URL's can sample ports other than 80, and can test HTTPS, provided you have the necessary jars (JSSE)

### Version 1.6 Alpha

- New UI
- Separation of GUI and Logic code
- New Plug-in framework for new modules
- Enhanced performance
- Layering of test logic for greater flexibility
- Added support for saving of test elements
- Added support for distributed testing using a single client

### Version 1.5.1

- Fixed bug that caused cookies not to be read if header name case not as expected.
- Clone entries before sending to sampler - prevents relocations from messing up information across threads
- Minor bug fix to convenience dialog for adding parameters to test sample. Bug prevented entries in dialog from appearing in test sample.
- Added xerces.jar to distribution
- Added junit.jar to distribution and created a few tests.
- Started work on new framework. New files in cvs, but do not effect program yet.
- Fixed bug that prevent HTTPJMeterThread from delaying according to chosen timer.

### Version 1.5

- Abstracted out the concept of the Sampler, SamplerController, and TestSample. A Sampler represents code that understands a protocol (such as HTTP, or FTP, RMI, SMTP, etc..). It is the code that actually makes the connection to whatever is being tested. A SamplerController represents code that understands how to organize and run a group of test samples. It is what binds together a Sampler and its test samples and runs them. A TestSample represents code that understands how to gather information from the user about a particular test. For a website, it would represent a URL and any information to be sent with the URL.
- The UI has been updated to make entering test samples more convenient.
- Thread groups have been added, allowing a user to setup multiple test to run concurrently, and to allow sharing of test samples between those tests.
- It is now possible to save and load test samples.
- &hellip; and many more minor changes/improvements &hellip;

Apache JMeter 1.4.1-dev

- Cleaned up URLSampler code after tons of patches for better readability. (SM)
- Made JMeter send a special "user-agent" identifier. (SM)
- Fixed problems with redirection not sending cookies and authentication info and removed a warning with jikes compilation. Thanks to Wesley Tanaka for the patches (SM)
- Fixed a bug in the URLSampler that caused to skip one URL when testing lists of URLs and a problem with Cookie handling. Thanks to Graham Johnson for the patches (SM)
- Fixed a problem with POST actions. Thanks to Stephen Schaub for the patch (SM)

Apache JMeter 1.4 - Jul 11 1999

- Fixed a problem with POST actions. Thanks to Brendan Burns for the patch (SM)
- Added close button to the About box for those window managers who don't provide it. Thanks to Jan-Henrik Haukeland for pointing it out. (SM)
- Added the simple Spline sample visualizer (JPN)

Apache JMeter 1.3 - Apr 16 1999

- Run the Garbage Collector and run finalization before starting to sampling to ensure same state every time (SM)
- Fixed some NullPointerExceptions here and there (SM)
- Added HTTP authentication capabilities (RL)
- Added windowed sample visualizer (SM)
- Fixed stupid bug for command line arguments. Thanks to Jorge Bracer for pointing this out (SM)

Apache JMeter 1.2 - Mar 17 1999

- Integrated cookie capabilities with JMeter (SM)
- Added the Cookie manager and Netscape file parser (SD)
- Fixed compilation error for JDK 1.1 (SD)

Apache JMeter 1.1 - Feb 24 1999

- Created the opportunity to create URL aliasing from the properties file as well as the ability to associate aliases to URL sequences instead of single URLs (SM) Thanks to Simon Chatfield for the very nice suggestions and code examples.
- Removed the TextVisualizer and replaced it with the much more useful FileVisualizer (SM)
- Added the known bug list (SM)
- Removed the Java Apache logo (SM)
- Fixed a couple of typos (SM)
- Added UNIX makefile (SD)

Apache JMeter 1.0.1 - Jan 25 1999

- Removed pending issues doc issues (SM)
- Fixed the unix script (SM)
- Added the possibility of running the JAR directly using "java -jar ApacheJMeter.jar" with Java 2 (SM)
- Some small updates: fixed Swing location after Java 2(tm) release, license update and small cleanups (SM)

Apache JMeter 1.0 - Dec 15 1998

- Initial version. (SM)