jmeter/xdocs/changes.xml

<?xml version="1.0"?>
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<!DOCTYPE document
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<document>
<properties>
    <author email="dev AT jmeter.apache.org">JMeter developers</author>
    <title>Changes</title>
</properties>
<body>
<section name="Changes">
<style type="text/css"><!--
h2 { color: #960000; }
h3 { color: #960000; }
--></style>
<note>
<b>This page details the changes made in the current version only.</b>
<br></br>
Earlier changes are detailed in the <a href="changes_history.html">History of Previous Changes</a>.
</note>


<!--  =================== 5.5 =================== -->

<h1>Version 5.5</h1>
<p>
Summary
</p>
<ul>
<li><a href="#New and Noteworthy">New and Noteworthy</a></li>
<li><a href="#Incompatible changes">Incompatible changes</a></li>
<li><a href="#Bug fixes">Bug fixes</a></li>
<li><a href="#Improvements">Improvements</a></li>
<li><a href="#Non-functional changes">Non-functional changes</a></li>
<li><a href="#Known problems and workarounds">Known problems and workarounds</a></li>
<li><a href="#Thanks">Thanks</a></li>

</ul>

<ch_section>New and Noteworthy</ch_section>
<!--
<ch_title>Core improvements</ch_title>
<ch_title>Test Plan</ch_title>
<ch_title>Scripting / Debugging enhancements</ch_title>
<ch_title>Functions</ch_title>
-->
<ch_title>UX improvements</ch_title>

<!-- =================== Incompatible changes =================== -->

<ch_section>Incompatible changes</ch_section>
<ul>
</ul>
<!-- =================== Improvements =================== -->

<ch_section>Improvements</ch_section>

<h3>HTTP Samplers and Test Script Recorder</h3>
<ul>
  <li><bug>65027</bug>Detect mime-type for files automatically when adding files to HTTP Sampler</li>
  <li><bug>65020</bug>HTTP Sampler/Files upload tab - add missing buttons</li>
  <li><pr>650</pr>HTTP Sampler timestamp fix when exception is caught. Contributed by Konstantin Kalinin (konstantin at kkalinin.pro)</li>
</ul>

<h3>Other samplers</h3>
<ul>
  <li><bug>65149</bug><pr>644</pr>Encode the personal part of email addresses in SMTP Sampler</li>
<ul>Bolt Sampler : added "transaction timeout" option
</ul>
<ul>Bolt Sampler : added "database" option, required for Neo4j 4.x (with multi-database support)
</ul>
<ul>Bolt Sampler : added "access mode" option, that allows running against a Neo4j Enterprise causal cluster,
    with proper query routing using the "neo4://" or "bolt+routing://" URL schemes.
</ul>

<h3>Controllers</h3>
<ul>
</ul>

<h3>Listeners</h3>
<ul>
  <li><bug>64988</bug>Sort properties and variables in a human expected order for DebugPostProcessor and DebugSampler</li>
  <li><bug>63061</bug>Sort View Results in Table in a human expected order</li>
</ul>

<h3>Timers, Assertions, Config, Pre- &amp; Post-Processors</h3>
<ul>Bolt Connection Configuration: added ConnectionPoolMaxSize parameter
</ul>

<h3>Functions</h3>
<ul>
</ul>

<h3>I18N</h3>
<ul>
</ul>

<h3>Report / Dashboard</h3>
<ul>
</ul>

<h3>General</h3>
<ul>
</ul>

<ch_section>Non-functional changes</ch_section>
<ul>
  <li><bug>65128</bug><pr>643</pr>Add missing documentation about <code>Same user on each iteration</code> for Thread Groups. Contributed by njkuzas.</li>
  <li><pr>648</pr>Updated xmlgraphics-commons to 2.6 (from 2.3). Contributed by Stefan Seide (stefan @ trilobyte.se.de)</li>
</ul>

 <!-- =================== Bug fixes =================== -->

<ch_section>Bug fixes</ch_section>

<h3>HTTP Samplers and Test Script Recorder</h3>
<ul>
</ul>

<h3>Other Samplers</h3>
<ul>
  <li><bug>65152</bug>OS Process Sampler - Cannot <code>Add from Clipboard</code> Command parameters</li>
<ul>Bolt Sampler : fixed error displaying results when "Record Query Results" is enabled.
</ul>

<h3>Controllers</h3>
<ul>
</ul>

<h3>Listeners</h3>
<ul>
  <li><bug>64962</bug>Save CSV sub-results recursively from View Results Tree</li>
</ul>

<h3>Timers, Assertions, Config, Pre- &amp; Post-Processors</h3>
<ul>
</ul>

<h3>Functions</h3>
<ul>
</ul>

<h3>I18N</h3>
<ul>
</ul>

<h3>Report / Dashboard</h3>
<ul>
</ul>

<h3>Documentation</h3>
<ul>
</ul>

<h3>General</h3>
<ul>
  <li><bug>64318</bug>DNS Cache Manager - custom DNS resolver does not use system resolver by default</li>
  <li><pr>641</pr>Updated xercesImpl to 2.12.1 (from 2.12.0). Based on patch by Stefan Seide (stefan at trilobyte-se.de).</li>
  <li><pr>645</pr>Add escaping for new lines in AbstractInfluxdbMetricsSender. Contributed by David Getzlaff (david.getzlaff at t-systems.com>)</li>
</ul>

 <!--  =================== Thanks =================== -->

<ch_section>Thanks</ch_section>
<p>We thank all contributors mentioned in bug and improvement sections above:
</p>
<ul>
  <li>Stefan Seide (stefan at trilobyte-se.de)</li>
  <li>njzukas (github.com/njzukas)</li>
  <li>David Getzlaff (david.getzlaff at t-systems.com>)</li>
  <li>Konstantin Kalinin (konstantin at kkalinin.pro)</li>
</ul>
<p>We also thank bug reporters who helped us improve JMeter.</p>
<ul>
  <li>Nikola Aleksic (nalexic at gmail.com)</li>
</ul>
<p>
Apologies if we have omitted anyone else.
</p>
 <!--  =================== Known bugs or issues related to JAVA Bugs =================== -->

<ch_section>Known problems and workarounds</ch_section>
<ul>
<li>The Once Only controller behaves correctly under a Thread Group or Loop Controller,
but otherwise its behaviour is not consistent (or clearly specified).</li>

<li>
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 <code>0</code> (see <bugzilla>55510</bugzilla>).
</li>

<li>
Note that under some windows systems you may have this WARNING:
<source>
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.
</source>
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.
</li>

<li>
You may encounter the following error:
<source>java.security.cert.CertificateException: Certificates does not conform to algorithm constraints</source>
 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 <code>md2WithRSAEncryption</code>) or with a SSL certificate with a size lower than 1024 bits.
This error is related to increased security in Java 8+.
<br></br>
To allow you to perform your HTTPS request, you can downgrade the security of your Java installation by editing
the Java <code>jdk.certpath.disabledAlgorithms</code> property. Remove the MD2 value or the constraint on size, depending on your case.
<br></br>
This property is in this file:
<source>JAVA_HOME/jre/lib/security/java.security</source>
See  <bugzilla>56357</bugzilla> for details.
</li>

<li>
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 <a href="https://bugs.openjdk.java.net/browse/JDK-8065373" >JDK-8065373</a>
The fix is to use JDK8_u45 or later.
</li>

<li>
View Results Tree may fail to display some HTML code under HTML renderer, see <bugzilla>54586</bugzilla>.
This is due to a known Java bug which fails to parse "<code>px</code>" units in row/col attributes.
See Bug <a href="https://bugs.openjdk.java.net/browse/JDK-8031109" >JDK-8031109</a>
The fix is to use JDK9 b65 or later.
</li>

<li>
JTable selection with keyboard (<keycombo><keysym>SHIFT</keysym><keysym>up/down</keysym></keycombo>) is totally unusable with Java 7 on Mac OSX.
This is due to a known Java bug <a href="https://bugs.openjdk.java.net/browse/JDK-8025126" >JDK-8025126</a>
The fix is to use JDK 8 b132 or later.
</li>

<li>
Since Java 11 the JavaScript implementation <a href="https://openjdk.java.net/jeps/335">Nashorn has been deprecated</a>.
Java will emit the following deprecation warnings, if you are using JavaScript based on Nashorn.
<source>
Warning: Nashorn engine is planned to be removed from a future JDK release
</source>
To silence these warnings, add <code>-Dnashorn.args=--no-deprecation-warning</code> to your Java arguments.
That can be achieved by setting the enviroment variable <code>JVM_ARGS</code>
<source>
export JVM_ARGS="-Dnashorn.args=--no-deprecation-warning"
</source>
</li>

<li>
With Java 15 the JavaScript implementation <a href="https://openjdk.java.net/jeps/372">Nashorn has been removed</a>. To add back a JSR-223 compatible JavaScript engine you have two options:
  <dl>
    <dt>Use Mozilla Rhino</dt>
    <dd>Copy <a href="https://github.com/mozilla/rhino/releases/download/Rhino1_7_13_Release/rhino-engine-1.7.13.jar">rhino-engine-1.7.13.jar</a> into <code>$JMETER_HOME/lib/ext</code>.</dd>
    <dt>Use OpenJDK Nashorn</dt>
    <dd>
      The OpenJDK Nashorn implementation comes as a module. To use it, you will have to download it and add it to the module path. A hacky way to download the version 15.0 and its dependencies and set the module path is outlined below:
      <source>
mkdir lib/modules
pushd lib/modules
wget https://repo1.maven.org/maven2/org/openjdk/nashorn/nashorn-core/15.0/nashorn-core-15.0.jar
wget https://repo1.maven.org/maven2/org/ow2/asm/asm/9.0/asm-9.0.jar
wget https://repo1.maven.org/maven2/org/ow2/asm/asm-commons/9.0/asm-commons-9.0.jar
wget https://repo1.maven.org/maven2/org/ow2/asm/asm-util/9.0/asm-util-9.0.jar
wget https://repo1.maven.org/maven2/org/ow2/asm/asm-tree/9.0/asm-tree-9.0.jar
wget https://repo1.maven.org/maven2/org/ow2/asm/asm-analysis/9.0/asm-analysis-9.0.jar
popd
export JVM_ARGS="--modulepath $PWD/lib/modules"
./bin/jmeter
      </source>
    </dd>
  </dl>
</li>

</ul>

</section>
</body>
</document>