DefaultListableBeanFactory performs a fallback check for autowire candidates now, which GenericTypeAwareAutowireCandidateResolver implements to accept raw type matches if the target class has unresolvable type variables. Full generic matches are still preferred; the BeanFactory will only start looking for fallback matches if the first pass led to an empty result.
Issue: SPR-10993
Issue: SPR-11004
Update TypeConverterDelegate to bypass conversion when the target type
is Object.class. Prior to this commit converting a single element array
to an Object would result in the element being returned, rather than
the array itself.
Issue: SPR-10996
- Now avoiding NullPointerExceptions in GenericTypeResolver's
resolveReturnTypeForGenericMethod() in case the supplied ClassLoader
is null.
- AutowireUtils.resolveReturnTypeForFactoryMethod() now properly
asserts that the supplied ClassLoader is not null.
- Fixed copy-n-paste errors in Javadoc for
AutowireUtils.resolveReturnTypeForFactoryMethod().
Issue: SPR-10411
Includes revisions of MethodParameter and DependencyDescriptor (in particular towards a reference to the containing class). Also refines several ResolvableType method signatures.
Issue: SPR-9965
We're consistently resolving class names now, and the entire algorithm moved from GenericTypeResolver to the internal AutowireUtils helper in the bean factory package.
Issue: SPR-10411
A few noteworthy minor changes: LocaleContext.getLocale() may return null in special cases (not by default), which our own accessing classes are able to handle now. If there is a non-null TimeZone user setting, we're exposing it to all collaborating libraries, in particular to JSTL, Velocity and JasperReports. Our JSR-310 and Joda-Time support falls back to checking the general LocaleContext TimeZone now, adapting it to their time zone types, if no more specific setting has been provided. Our DefaultConversionService has TimeZone<->ZoneId converters registered. And finally, we're using a custom parseTimeZoneString method now that doesn't accept the TimeZone.getTimeZone(String) GMT fallback for an invalid time zone id anymore.
Issue: SPR-1528
Also internally renaming SimpleNonIndexedPropertyDescriptor to SimplePropertyDescriptor and preferring direct field access wherever possible.
Issue: SPR-10862
(cherry picked from commit 5639aa7)
Also, DefaultListableBeanFactory logs a warning when overriding an application definition with a framework-generated definition now, which is expected to be an accident.
Issue: SPR-10607
This turned into a rather huge affair since it led to the introduction of a new AutowireCandidateResolver implementation in the spring-context module. That ACR impl is now being set through AnnotationConfigUtils; GenericApplicationContext and co do not set a default QualifierAnnotationAutowireCandidateResolver anymore (which has always been a smell anyway). At the same time, dependency ordering has moved from AutowiredAnnotationBeanPostProcessor to DefaultListableBeanFactory itself through a "dependencyComparator" strategy, applying to constructor dependencies and lazy resolution proxies as well.
Issue: SPR-10353
Also fixing an old XmlBeanFactory test that relies on "ref local" which is gone in the 4.0 xsd now, redeclaring the affected file to an older xsd version.
Also, StandardReflectionParameterNameDiscoverer calls "Parameter.isNamePresent()" now to return null (and pass on to the next discoverer) if no JDK 8 parameters are available. Note that this requires OpenJDK 8 b100 or higher to compile now.
Issue: SPR-10532
This change should be the final piece in the puzzle to let SmartInstantiationAwareBeanPostProcessor's predictBeanType predict a FactoryBean-produced type, effectively as a semantic alternative to its postProcessBeforeInstantiation-related role.
Issue: SPR-10517
Removed spring-beans.dtd (the 1.x variant) and spring-oxm-1.5.xsd (pre-Spring-Framework variant), in order to raise the backwards compatibility limit a little bit at least. We'll keep supporting the 2.0 and 2.5 xsd versions for the time being, as well as spring-beans-2.0.dtd.
Removed the ref 'local' attribute in spring-beans-4.0.xsd since 'local' lost its differentiating role to a regular bean ref back in the 3.1 days when we started allowing for the same bean id to reappear in a different beans section of the same configuration file (with a different profile).
Issue: SPR-10437
Use LinkedHashMaps/Sets wherever exposed to users, and code tests defensively in terms of expected Map/Set ordering. Otherwise, there'll be runtime order differences between JDK 7 and JDK 8 due to internal HashMap/Set implementation differences.
Issue: SPR-9639
In particular, avoid accidental usage of ASM for core JDK types - which will fail in case of a new bytecode version in the JDK, even if the application itself has been compiled with an earlier bytecode target.
Issue: SPR-10292
Driven by the need for implementing Bean Validation 1.1's "releaseInstance" method in SpringConstraintValidatorFactory, as a direct counterpart to the use of AutowireCapableBeanFactory's "createBean(Class)" in "getInstance".
Issue: SPR-8199
* 3.2.x: (28 commits)
Hide 'doc' changes from jdiff reports
Document @Bean 'lite' mode vs @Configuration
Final preparations for 3.2.2
Remove Tiles 3 configuration method
Polishing
Extracted buildRequestAttributes template method from FrameworkServlet
Added "beforeExistingAdvisors" flag to AbstractAdvisingBeanPostProcessor
Minor refinements along the way of researching static CGLIB callbacks
Compare Kind references before checking log levels
Polish Javadoc in RequestAttributes
Fix copy-n-paste errors in NativeWebRequest
Fix issue with restoring included attributes
Add additional test for daylight savings glitch
Document context hierarchy support in the TCF
Fix test for daylight savings glitch
Make the methodParameter field of HandlerMethod final
Disable AsyncTests in spring-test-mvc
Reformat the testing chapter
Document context hierarchy support in the TCF
Document context hierarchy support in the TCF
...
Prior to this change, CallbacksSecurityTests#testContainerPrivileges was
@Ignored because it caused the build to fail under Gradle. After some
analysis, the root cause was determined to be the fact that (a) a
restrictive SecurityManager is active during the running of this test,
and (b), Gradle intercepts System.out and routes it through its internal
LogBack-based logging system. LogBack requires a call to
Class#getClassLoader when handling logging statements, and the
SecurityManager disallows this call, thus raising the error that fails
the build.
This commit solves the problem by eliminating the System.out.println
call in question and removing the @Ignore annotation from the test. The
console output was diagnostic in nature anyway, and not required for the
successful execution of the test's assertions.
Issue: SPR-10074
Update AbstractAutowireCapableBeanFactory.getTypeForFactoryBean to
check AbstractBeanDefinition.hasBeanClass() before calling
getBeanClass(). The protects against a 'Bean class name [<name>] has
not been resolved into an actual Class' IllegalStateException.
Issue: SPR-10304
This change means that we effectively revert SPR-8954's code change in favor of the isFactoryBean implementation simply relying on predictBeanType to sort it out, filtering a post-processed predictedType for FactoryBean applicability.
Issue: SPR-9177
Issue: SPR-9143
Update DefaultListableBeanFactory.getBean(Class<?> beanClass) to
consider the 'primary' attribute of bean definitions. This makes
getBean() behave in the same way as autowiring.
Issue: SPR-7854
Also introduces consistent use of getBean(Class) for similar use cases across the framework, accepting a locally unique target bean even if further matching beans would be available in parent contexts (in contrast to BeanFactoryUtils.beanOfType's behavior).
Issue: SPR-10160
This change resolves a specific issue with processing
java.math.BigDecimal via ExtendedBeanInfo. BigDecimal has a particular
constellation of #setScale methods that, prior to this change, had the
potential to cause ExtendedBeanInfo to throw an IntrospectionException
depending on the order in which the methods were processed.
Because JDK 7 no longer returns deterministic results from
Class#getDeclaredMethods, it became a genuine possibility - indeed a
statistical certainty that the 'wrong' setScale method handling order
happens sooner or later. Typically one could observe this failure once
out of every four test runs.
This commit introduces deterministic method ordering of all discovered
non-void returning write methods in such a way that solves the problem
for BigDecimal as well as for any other class having a similar method
arrangement.
Also:
- Remove unnecessary cast
- Pass no method information to PropertyDescriptor superclasses when
invoking super(...). This ensures that any 'type mismatch'
IntrospectionExceptions are handled locally in ExtendedBeanInfo and
its Simple* PropertyDescriptor variants where we have full control.
Issue: SPR-10111, SPR-9702
Backport-Commit: aa3e0be (forward-ported via cherry-pick from 3.1.x)
Prior to this change, spring-beans contained its own META-INF containing
spring.handlers and spring.schemas files in src/main/resources; it also
had files of the same name within src/test/resources/META-INF, causing
'duplicate resource' warnings and confusion in general.
This commit moves the com.foo test package, it's associated namespace
parsing tests and test versions of META-INF files to the root project
and it's src/test integration testing folder.
Issue: SPR-9431
* cleanup-test-duplicates:
Update Apache license headers for affected sources
Remove duplicate test classes
Replace test beans with test objects
Conflicts:
spring-beans/src/test/java/org/springframework/beans/factory/ConcurrentBeanFactoryTests.java
spring-beans/src/test/java/org/springframework/beans/support/PagedListHolderTests.java
Prior to this commit many test utility classes and sample beans were
duplicated across projects. This was previously necessary due to the
fact that dependent test sources were not shared during a gradle
build. Since the introduction of the 'test-source-set-dependencies'
gradle plugin this is no longer the case.
This commit attempts to remove as much duplicate code as possible,
co-locating test utilities and beans in the most suitable project.
For example, test beans are now located in the 'spring-beans'
project.
Some of the duplicated code had started to drift apart when
modifications made in one project where not ported to others. All
changes have now been consolidated and when necessary existing tests
have been refactored to account for the differences.
Conflicts:
spring-beans/src/test/java/org/springframework/beans/factory/ConcurrentBeanFactoryTests.java
spring-beans/src/test/java/org/springframework/beans/factory/support/BeanFactoryGenericsTests.java
spring-beans/src/test/java/org/springframework/beans/support/PagedListHolderTests.java
* 3.2.x:
Fix ClassCastException when setting media types
Enable execution of TestNG tests in spring-test
Polish support for topic branch-specific versions
Segregate add'l long-running and performance tests
Eliminate EBR dependencies and repository config
Skip creation of IDEA metadata for spring-aspects
Fix Eclipse compilation error in Gradle plugin
Polish build.gradle
Fix null parameterName issue in content negotiation
Recursively add test dependencies
- Add TestGroup#LONG_RUNNING to distinguish from #PERFORMANCE, the
former being tests that simply take a long time vs the latter being
tests that are actually dependent on certain actions happening within
a given time window and are thefore CPU-dependent.
Issue: SPR-9984
* 3.2.x:
Exclude spring-build-src from maven publish
Move spring-build-junit into spring-core
Relocate MergePlugin package
Develop a gradle plugin to add test dependencies
Expose Gradle buildSrc for IDE support
Fix [deprecation] compiler warnings
Upgrade to xmlunit version 1.3
Improve 'build' folder ignores
Fix regression in static setter method support
Fix SpEL JavaBean compliance for setters
Conflicts:
spring-beans/src/test/java/org/springframework/beans/ExtendedBeanInfoTests.java
Move code from spring-build-junit into spring-core/src/test along with
several other test utility classes. This commit removes the temporary
spring-build-junit project introduced in commit
b083bbdec7.
Fix deprecation compiler warnings by refactoring code or applying
@SuppressWarnings("deprecation") annotations. JUnit tests of
internally deprecated classes are now themselves marked as
@Deprecated.
Numerous EasyMock deprecation warnings will remain until the
migration to mockito can be completed.
The intention of ExtendedBeanInfo, introduced with SPR-8079 in
v3.1.0.M2, was to support dependency injection against non-void
returning write methods. However, it also inadvertently introduced
support for injection against static setter methods.
When use of ExtendedBeanInfo was made optional with SPR-9723 in
v3.2.0.M2, ExtendedBeanInfo continued to support static write methods,
but its new BeanInfoFactory-based approach to testing whether or not
a given bean class contains candidate write methods was written in a
fashion exclusive of static methods, and this thereby introduced a
regression - a regression in an otherwise undocumented and unintended
feature, but a regression nevertheless.
The reporting of SPR-10115 proves that at least one user has come to
depend on this behavior allowing injection against static write
methods, and so this commit fixes the regression by ensuring that the
candidacy test includes standard and non-void setter methods having a
static modifier.
Issue: SPR-10115, SPR-9723, SPR-8079
* cleanup-3.2.x: (33 commits)
Update Apache license headers for affected sources
Ignore performance-sensitive tests by default
Introduce 'spring-build-junit' subproject
Replace EasyMock with Mockito in test sources
Add @Override annotations to test sources
Update test source and target JDK compatibility
Update -Xlint compiler warning output
Fix various compiler warnings in spring-context
Fix "unnecessary @SuppressWarnings" warnings
Fix [rawtypes] compiler warnings
Fix [dep-ann] warnings with @Deprecated
Fix [cast] compiler warnings
Fix [serial] compiler warnings
Fix [varargs] compiler warnings
Fix warnings due to unused import statements
Replace <code> with {@code} throughout Javadoc
Fix various Javadoc warnings
Replace space indentation with tabs
Remove trailing whitespace in source files
Various updates to support IDEA
...
Conflicts:
gradle.properties
Make use of the new JUnit functionality introduced in the previous
commit to 'Assume' that perfomance- and timing-sensitive tests should
run only when TestGroup.PERFORMANCE is selected, i.e. when
-PtestGroups="performance" has been provided at the Gradle command line.
The net effect is that these tests are now ignored by default, which
will result in far fewer false-negative CI build failures due to
resource contention and other external factors that cause slowdowns.
We will set up a dedicated performance CI build to run these tests on
an isolated machine, etc.
Issue: SPR-9984
Fix serialization warnings by applying @SuppressWarnings("serial")
when appropriate.
In certain cases and for unknown reasons, a correctly-placed
@SuppressWarnings("serial") annotation will fix the warning at the
javac level (i.e. the Gradle command-line), but will produce an
"unnecessary @SuppressWarnings" warning within Eclipse. In these
cases, a private static final serialVersionUID field has been added
with the default value of 1L.
Remove the 'final' modifier from SingletonBeanFactoryLocatorTests
to work around the "cannot extend final class" error issued when
running all tests. The error was due to confusion with IDEA between
the two variants of SingletonBeanFactoryLocatorTests across
spring-context and spring-beans.
Rename one of the GroovyMessenger classes to GroovyMessenger2.
Previously there were multiple Groovy classes named
'GroovyMessenger', causing a compilation error in certain IDE
arrangements.
Update import-into-idea.md documentation
Add various IDEA artifacts to .gitignore
- ignore derby.log wherever it is written
- ignore IDEA's test-output directory
- ignore IDEA's Atlassian connector config file
This change resolves a specific issue with processing
java.math.BigDecimal via ExtendedBeanInfo. BigDecimal has a particular
constellation of #setScale methods that, prior to this change, had the
potential to cause ExtendedBeanInfo to throw an IntrospectionException
depending on the order in which the methods were processed.
Because JDK 7 no longer returns deterministic results from
Class#getDeclaredMethods, it became a genuine possibility - indeed a
statistical certainty that the 'wrong' setScale method handling order
happens sooner or later. Typically one could observe this failure once
out of every four test runs.
This commit introduces deterministic method ordering of all discovered
non-void returning write methods in such a way that solves the problem
for BigDecimal as well as for any other class having a similar method
arrangement.
Also:
- Remove unnecessary cast
- Pass no method information to PropertyDescriptor superclasses when
invoking super(...). This ensures that any 'type mismatch'
IntrospectionExceptions are handled locally in ExtendedBeanInfo and
its Simple* PropertyDescriptor variants where we have full control.
Issue: SPR-10111, SPR-9702
In particular, avoiding synchronized Sets and Maps wherever possible (preferring a ConcurrentHashMap even instead of a synchronized Set) and specifying appropriate ConcurrentHashMap initial capacities (even if we end up choosing 16).
- Support external Javadoc links using Gradle's javadoc.options.links
- Fix all other Javadoc warnings, such as typos, references to
non-existent (or no longer existent) types and members, etc,
including changes related to the Quartz 2.0 upgrade (SPR-8275) and
adding the HTTP PATCH method (SPR-7985).
- Suppress all output for project-level `javadoc` tasks in order to
hide false-negative warnings about cross-module @see and @link
references (e.g. spring-core having a @see reference to spring-web).
Use the `--info` (-i) flag to gradle at any time to see project-level
javadoc warnings without running the entire `api` task. e.g.
`gradle :spring-core:javadoc -i`
- Favor root project level `api` task for detection of legitimate
Javadoc warnings. There are now zero Javadoc warnings across the
entirety of spring-framework. Goal: keep it that way.
- Remove all @link and @see references to types and members that exist
only in Servlet <= 2.5 and Hibernate <= 4.0, favoring 3.0+ and 4.0+
respectively. This is necessary because only one version of each of
these dependencies can be present on the global `api` javadoc task's
classpath. To that end, the `api` task classpath has now been
customized to ensure that the Servlet 3 API and Hibernate Core 4 jars
have precedence.
- SPR-8896 replaced our dependency on aspectjrt with a dependency on
aspectjweaver, which is fine from a POM point of view, but causes
a spurious warning to be emitted from the ant iajc task that it
"cannot find aspectjrt on the classpath" - even though aspectjweaver
is perfectly sufficient. In the name of keeping the console quiet, a
new `rt` configuration has been added, and aspectjrt added as a
dependency to it. In turn, configurations.rt.asPath is appended to
the iajc classpath during both compileJava and compileTestJava for
spring-aspects.
Issue: SPR-10078, SPR-8275, SPR-7985, SPR-8896
Documented why static nested test cases in the spring-test module are
ignored, explaining that such "TestCase classes are run manually by the
enclosing test class". Prior to the migration to Gradle (i.e., with
Spring Build), these tests would not have been picked up by the test
suite since they end with a "TestCase" suffix instead of "Test" or
"Tests".
Re-enabled HibernateMultiEntityManagerFactoryIntegrationTests.
For the remaining tests that were disabled as a result of the migration
to Gradle, comments have been added to the @Ignore declarations.
Issue: SPR-8116, SPR-9398
Previously, CachedIntrospectionResults had three modes of caching, with the intermediate mode relying on WeakReferences in the JDK PropertyDescriptor implementation. Since the JDK is actually using SoftReferences there these days, losing information in case of a GC run with tough memory constraints, we want to allow for hard references in PropertyDescriptor objects and therefore use a full WeakReference for the CachedIntrospectionResults object itself.
Issue: SPR-10028
This change revisits the implementation of ExtendedBeanInfo, simplifying
the overall approach while also ensuring that ExtendedBeanInfo is fully
isolated from the BeanInfo instance it wraps. This includes any existing
PropertyDescriptors in the wrapped BeanInfo - along with being copied
locally into ExtendedBeanInfo, each property descriptor is now also
wrapped with our own new "simple" PropertyDescriptor variants that
bypass the soft/weak reference management that goes on in both
java.beans.PropertyDescriptor and java.beans.IndexedPropertyDescriptor,
maintaining hard references to methods and bean classes instead. This
ensures that changes we make to property descriptors, e.g. adding write
methods, do not cause subtle conflicts during garbage collection (as was
reported and reproduced in SPR-9702).
Eliminating soft/weak reference management means that we must take extra
care to ensure that we do not cause ClassLoader leaks by maintaining
hard references to methods, and therefore transitively to the
ClassLoader in which the bean class was loaded. The forthcoming
SPR-10028 addresses this aspect.
See the updated ExtendedBeanInfo Javadoc for further details.
Issue: SPR-8079, SPR-8175, SPR-8347, SPR-8432, SPR-8491, SPR-8522,
SPR-8806, SPR-8931, SPR-8937, SPR-8949, SPR-9007, SPR-9059,
SPR-9414, SPR-9453, SPR-9542, SPR-9584, SPR-9677, SPR-9702,
SPR-9723, SPR-9943, SPR-9978, SPR-10028, SPR-10029
In particular, the specified object name may use a placeholder for its domain part now, allowing for several instances of the MBean to be registered against the same MBeanServer from different applications.
Issue: SPR-8244
Allow the body of 'arg-type' XML elements to be used as an alternative to
'match' attribute when defining a 'replace-method' in XML configuration.
This change has been introduced primarily to support the samples printed
in the Apress 'Pro Spring' book.
Issue: SPR-9812
Reverted change for @Bean methods that declare FactoryBean as their return type: The effects of trying to create the FactoryBean to find out about its implementation type are too far-reaching. It's better to recommend declaring a specific return type in the method signature if you want the container to specifically react to your implementation type.
Issue: SPR-9857
Includes a change for factory methods that declare their return type as FactoryBean: When asked for a specific type match (e.g. LoadTimeWeaverAware), we do check early singleton instances as well (reusing the instances that we create for getObjectType checks). This is necessary in order to make @Bean method introspection as capable as XML bean definition introspection, even in case of the @Bean method using a generic FactoryBean declaration for its return type (instead of the FactoryBean impl class).
Issue: SPR-9857
This change fixes further cases under JDK 6 in which setting a bridged
(e.g. String-returning) read method can conflict with an existing
corresponding bridge write method that accepts an Object parameter.
This appears to be a implementation difference between JDKs 6 and 7,
where the JDK 6 Introspector adds bridge methods and JDK 7 does not.
The solution here is to consistently null-out any existing write method
before setting the read method. We were doing this elsewhere in
ExtendedBeanInfo already, but these two changes make the approach
consistent throuhout.
Issue: SPR-8806
Autowired methods might have been skipped on subsequent creation of further bean instances due to the 'skip' flag set to false outside of the synchronized block, with another thread entering the block and setting the flag to true in the meantime.
Issue: SPR-9806
- Increase max heap size in gradle wrapper.
- Use MockProperties implementation to protect against security
exceptions.
- Replace windows CRLF with LF in various tests.
- Increase Thread.sleep times to account for lack of precision on
Windows.
Issue: SPR-9717
This commit refactors the BeanInfoFactory so that:
- supports() and getBeanInfo() are folded into one, so that getBeanInfo()
returns null if a given class is not supported.
- CachedIntrospectionResults now uses SpringFactoriesLoader
Prior to this change, CachedIntrospectionResults delegated to
ExtendedBeanInfo by default in order to inspect JavaBean
PropertyDescriptor information for bean classes.
Originally introduced with SPR-8079, ExtendedBeanInfo was designed to
go beyond the capabilities of the default JavaBeans Introspector in
order to support non-void returning setter methods, principally to
support use of builder-style APIs within Spring XML. This is a complex
affair, and the non-trivial logic in ExtendedBeanInfo has led to various
bugs including regressions for bean classes that do not declare
non-void returning setters.
This commit takes advantage of the new BeanInfoFactory mechanism
introduced in SPR-9677 to take ExtendedBeanInfo out of the default code
path for CachedIntrospectionResults. Now, the new
ExtendedBeanInfoFactory class will be detected and instantiated (per its
entry in the META-INF/spring.beanInfoFactories properties file shipped
with the spring-beans jar). ExtendedBeanInfoFactory#supports is invoked
for all bean classes in order to determine whether they are candidates
for ExtendedBeanInfo introspection, i.e. whether they declare non-void
returning setter methods.
If a class does not declare any such non-standard setter methods (the
99% case), then CachedIntrospectionResults will fall back to the
default JavaBeans Introspector. While efforts have been made to fix any
bugs with ExtendedBeanInfo, this change means that EBI will not pose
any future risk for bean classes that do not declare non-standard
setter methods, and also means greater efficiency in general.
Issue: SPR-9723, SPR-9677, SPR-8079
- Ensure that ExtendedBeanInfoTests succeeds when building under JDK 7
- Improve handling of read and write method registration where
generic interfaces are involved, per SPR-9453
- Add repro test for SPR-9702, in which EBI fails to register
an indexed read method under certain circumstances
Issue: SPR-9702, SPR-9414, SPR-9453
Before this commit, the CachedIntrospectionResults was hard-coded to
create ExtendedBeanInfos for bean classes. The ExtendedBeanInfo support
the JavaBeans property contract only.
This commit introduces the BeanInfoFactory, a strategy for creating
BeanInfos. Through this strategy, it is possible to support
beans that do not necessarily implement the JavaBeans contract (i.e.
have a different getter or setter style).
BeanInfoFactories are are instantiated by the
CachedIntrospectionResults, which looks for
'META-INF/spring.beanInfoFactories' files on the class path. These files
contain one or more BeanInfoFactory class names. When a BeanInfo is to
be created, the CachedIntrospectionResults will iterate through the
factories, asking it to create a BeanInfo for the given bean class. If
none of the factories support it, an ExtendedBeanInfo is created as a
default.
This commit also contains a change to Property, allowing BeanWrapperImpl
to specify the property name at construction time (as opposed to using
Property#resolveName(), which supports the JavaBeans contract only).
Issue: SPR-9677
CGLIB 3 has been released in order to depend on ASM 4, which Spring now
depends on internally (see previous commit).
This commit eliminates spring-beans' optional dependency on cglib-nodep
v2.2 and instead repackages net.sf.cglib => org.springframework.cglib
much in the same way we have historically done with ASM.
This change is beneficial to users in several ways:
- Eliminates the need to manually add CGLIB to the application
classpath; especially important for the growing number of
@Configuration class users. Java-based configuration functionality,
along with proxy-target-class and method injection features now
work 'out of the box' in Spring 3.2.
- Eliminates the possibility of conflicts with other libraries that
may dependend on differing versions of CGLIB, e.g. Hibernate
3.3.1.ga and its dependency on CGLIB 2.1.3 would easily cause a
conflict if the application were depending on CGLIB 3 for
Spring-related purposes.
- Picks up CGLIB 3's changes to support ASM 4, meaning that CGLIB is
that much less likely to work well in a Java 7 environment due to
ASM 4's support for transforming classes with invokedynamic
bytecode instructions.
On CGLIB and ASM:
CGLIB's own dependency on ASM is also transformed along the way to
depend on Spring's repackaged org.springframework.asm, primarily to
eliminate unnecessary duplication of ASM classfiles in spring-core and
in the process save around 100K in the final spring-core JAR file size.
It is coincidental that spring-core and CGLIB currently depend on the
exact same version of ASM (4.0), but it is also unlikely to change any
time soon. If this change does occur and versions of ASM drift, then
the size optimization mentioned above will have to be abandoned. This
would have no compatibility impact, however, so this is a reasonable
solution now and for the forseeable future.
On a mysterious NoClassDefFoundError:
During the upgrade to CGLIB 3.0, Spring test cases began failing due to
NoClassDefFoundErrors being thrown from CGLIB's DebuggingClassWriter
regarding its use of asm-util's TraceClassVisitor type. previous
versions of cglib-nodep, particularly 2.2, did not cause this behavior,
even though cglib-nodep has never actually repackaged and bundled
asm-util classes. The reason for these NoClassDefFoundErrors occurring
now is still not fully understood, but appears to be due to subtle JVM
bytecode preverification rules. The hypothesis is that due to minor
changes in DebuggingClassWriter such as additional casts, access to
instance variables declared in the superclass, and indeed a change in
the superclass hierarchy, preverification may be kicking in on the
toByteArray method body, at which point the reference to the missing
TraceClassVisitor type is noticed and the NCDFE is thrown. For this
reason, a dummy implementation of TraceClassVisitor has been added to
spring-core in the org.springframework.asm.util package. This class
simply ensures that Spring's own tests never result in the NCDFE
described above, and more importantly that Spring's users never
encounter the same.
Other changes include:
- rename package-private Cglib2AopProxy => CglibAopProxy
- eliminate all 'cglibAvailable' checks, warnings and errors
- eliminate all 'CGLIB2' language in favor of 'CGLIB'
- eliminate all mention in reference and java docs of needing to add
cglib(-nodep) to one's application classpath
Issue: SPR-9669
- renamed resolveParameterizedReturnType() to
resolveReturnTypeForGenericMethod()
- fleshed out Javadoc for resolveReturnType() and
resolveReturnTypeForGenericMethod() regarding declaration of formal
type variables
- improved wording in log statements and naming of local variables
within resolveReturnTypeForGenericMethod()
Issue: SPR-9493
Currently, if a factory method is parameterized and the corresponding
variable types are declared on the method itself instead of on the
enclosing class or interface, Spring always predicts the return type to
be Object, even if the return type can be explicitly inferred from the
method signature and supplied arguments (which are available in the bean
definition).
This commit introduces a new resolveParameterizedReturnType() method in
GenericTypeResolver that attempts to infer the concrete type for the
generic return type of a given parameterized method, falling back to the
standard return type if necessary. Furthermore,
AbstractAutowireCapableBeanFactory now delegates to
resolveParameterizedReturnType() when predicting the return type for
factory methods.
resolveParameterizedReturnType() is capable of inferring the concrete
type for return type T for method signatures similar to the following.
Such methods may potentially be static. Also, the formal argument list
for such methods is not limited to a single argument.
- public <T> T foo(Class<T> clazz)
- public <T> T foo(Object obj, Class<T> clazz)
- public <V, T> T foo(V obj, Class<T> clazz)
- public <T> T foo(T obj)
Issue: SPR-9493
The failure of the conversion service is not fatal, but the check that
was in there (line 248) was inadequate to detect the cases that could
already be handled by the default property editors. This code path
was also not tested anywhere in spring-beans tests until now.
Prior to this change, by-type lookups using DLBF#getBeanNamesForType
required traversal of all bean definitions within the bean factory
in order to inspect their bean class for assignability to the target
type. These operations are comparatively expensive and when there are a
large number of beans registered within the container coupled with a
large number of by-type lookups at runtime, the performance impact can
be severe. The test introduced here demonstrates such a scenario clearly.
This performance problem is likely to manifest in large Spring-based
applications using non-singleton beans, particularly request-scoped
beans that may be created and wired many thousands of times per second.
This commit introduces a simple ConcurrentHashMap-based caching strategy
for by-type lookups; container-wide assignability checks happen only
once on the first by-type lookup and are afterwards cached by type
with the values in the map being an array of all bean names assignable
to that type. This means that at runtime when creating and autowiring
non-singleton beans, the cost of by-type lookups is reduced to that of
ConcurrentHashMap#get.
Issue: SPR-6870
The following syntax is now supported
<beans profile="p1,!p2">
@Profile("p1", "!p2")
indicating that the <beans> element or annotated component should
be processed only if profile 'p1' is active or profile 'p2' is not
active.
Issue: SPR-8728
Commit 096693c46f refactored and
deprecated TransactionAspectUtils, moving its #qualifiedBeanOfType
and related methods into BeanFactoryUtils. This created a package cycle
between beans.factory and beans.factory.annotation due to use of the
beans.factory.annotation.Qualifier annotation in these methods.
This commit breaks the package cycle by introducing
beans.factory.annotation.BeanFactoryAnnotationUtils and moving these
@Qualifier-related methods to it. It is intentionally similar in name
and style to the familiar BeanFactoryUtils class for purposes of
discoverability.
There are no backward-compatibilty concerns associated with this change
as the cycle was introduced, caught and now fixed before a release.
Issue: SPR-6847
TransactionAspectUtils contains a number of methods useful in
retrieving a bean by type+qualifier. These methods are functionally
general-purpose save for the hard coding of PlatformTransactionManager
class literals throughout.
This commit generifies these methods and moves them into
BeanFactoryUtils primarily in anticipation of their use by async method
execution interceptors and aspects when performing lookups for qualified
executor beans e.g. via @Async("qualifier").
The public API of TransactionAspectUtils remains backward compatible;
all methods within have been deprecated, and all calls to those methods
throughout the framework refactored to use the new BeanFactoryUtils
variants instead.
Previously, the <value> subelement of a map <entry> allowed one to
specify the type of a specific map entry value. This patch allows a
value-type attribute as well, such that instead of the following
syntax
<entry key="x-message-ttl">
<value type="java.lang.Long">100</value>
</entry>
<entry key="x-ha-policy" value="all" />
one can now use the more concise form
<entry key="x-message-ttl" value="100" value-type="java.lang.Long"/>
<entry key="x-ha-policy" value="all"/>
The new value-type attribute may be used at the <map> level as well,
indicating that all elements are of the same type.
Appropriate tests have been added exercising value-type at the <map> and
<entry> levels.
Issue: SPR-9249
This patch fixes several compiler warnings that do not point to code
problems. Two kinds of warnings are fixed. First in a lot of cases
@SuppressWarnings("unchecked") is used although there are no unchecked
casts happening. This seems to be a leftover from when the code base
was on Java 1.4, now that the code base was moved to Java 1.5 these are
no longer necessary. Secondly there some places where the raw types of
List and Class are used where there wildcard types (List<?> and
Class<?>) would work just as well without causing any raw type warnings.
These changes are beneficial particularly when working in Eclipse or
other IDEs because it reduces 'noise', helping to isolate actual
potential problems in the code.
The following changes have been made:
- remove @SuppressWarnings where no longer needed
- use wildcard types instead of raw types where possible
InjectionMetadata and LifecycleMetadata can end up having mostly empty
instance variables. In such cases memory usage can be improved a little
bit.
This patch addresses this in two ways:
- Creating a LinkedHashSet of the "right" size, the default capacity
is 16 but the exact capacity needed is known in advance.
- If the argument is empty then use Collections#emptySet which is a
constant so no additional memory is used. Since it's immutable there
is no need for the Collections#synchronizedSet wrapper.
Issue: SPR-9264
Prior to this change, AABPP#determineRequiredStatus never checked the
return value of ReflectionUtils#findMethod when searching for a
'#required' attribute. This call returns null for annotations such as
@Inject, @Value and @Resource, and subsequently causes a
NullPointerException to be thrown when ReflectionUtils#invokeMethod is
called. The NPE is caught immediately and #determineRequiredStatus
returns defaulting to true, but this this approach is inefficient. It
is also problematic for users who have set breakpoints on NPE -- they
end up debugging into Spring internals, which is a false positive.
This commit checks the return value of of ReflectionUtils#findMethod,
and in the case of null, eagerly returns true. There is no change to
external behavior, simply a more efficient and debugging-friendly
implementation.
Existing test cases already cover this change, given that it is purely
a refactoring.
Issue: SPR-9316
Before this change there were numerous javadoc warnings being reported
while building Spring framework API.
This commit resolves most of the javadoc warnings, reducing the total
number from 265 to 103.
Issue: SPR-9113
Copy spring-*-3.1.xsd => spring-*-3.2.xsd; this commit introduces no
substantive changes, but rather prepares for them by creating a clean
baseline. All internal references to 3.1 schemas (e.g. spring-tool) have
also been updated.
* 3.1.x:
Demonstrate use of @Configuration as meta-annotation
Prune dead code from JmsTransactionManager#doBegin
Apply @Configuration BeanNameGenerator consistently
Improve @Configuration bean name discovery
Fix infinite recursion bug in nested @Configuration
Polish static imports
Minor fix in ServletResponseMethodArgumentResolver
extracted ResourceUtils.useCachesIfNecessary(URLConnection) method (SP
prepared for 3.1.1 release
CustomSQLExceptionTranslatorRegistry/Registrar etc
revised CustomSQLExceptionTranslatorRegistry/Registrar method naming
use custom InputStream traversal instead of a full byte array (SPR-911
PathMatchingResourcePatternResolver preserves caching for JNLP jar con
Resource "contentLength()" implementations work with OSGi bundle resou
fixed MethodInvokingJobDetailFactoryBean for compatibility with Quartz
fixed MethodInvokingJobDetailFactoryBean for compatibility with Quartz
* 3.1.x: (61 commits)
Compensate for changes in JDK 7 Introspector
Avoid 'type mismatch' errors in ExtendedBeanInfo
Polish ExtendedBeanInfo and tests
Infer AnnotationAttributes method return types
Minor fix in MVC reference doc chapter
Hibernate 4.1 etc
TypeDescriptor equals implementation accepts annotations in any order
"setBasenames" uses varargs now (for programmatic setup; SPR-9106)
@ActiveProfiles mechanism works with @ImportResource as well (SPR-8992
polishing
clarified Resource's "getFilename" method to consistently return null
substituteNamedParameters detects and unwraps SqlParameterValue object
Replace spaces with tabs
Consider security in ClassUtils#getMostSpecificMethod
Adding null check for username being null.
Improvements for registering custom SQL exception translators in app c
SPR-7680 Adding QueryTimeoutException to the DataAccessException hiera
Minor polish in WebMvcConfigurationSupport
Detect overridden boolean getters in ExtendedBeanInfo
Polish ExtendedBeanInfoTests
...
Each of these tests began failing during the Gradle build porting
process. None seem severe, many are likely due to classpath issues.
In the case of TestNG support, this needs to be added to the Gradle
build in order to execute these tests. See SPR-8116.txt
This renaming more intuitively expresses the relationship between
subprojects and the JAR artifacts they produce.
Tracking history across these renames is possible, but it requires
use of the --follow flag to `git log`, for example
$ git log spring-aop/src/main/java/org/springframework/aop/Advisor.java
will show history up until the renaming event, where
$ git log --follow spring-aop/src/main/java/org/springframework/aop/Advisor.java
will show history for all changes to the file, before and after the
renaming.
See http://chrisbeams.com/git-diff-across-renamed-directories
Juergen Hoeller
Phillip Webb
Sam Brannen
Phillip Webb
Rob Winch
Chris Beams
Carson McDonald
Gareth Davis
Arjen Poutsma
Dave Syer
Gary Russell
Philippe Marschall
Stevo Slavic