While resolving the regression raised in gh-23571, it came to our
attention that not all of our ClassFilter and MethodMatcher
implementations were properly cacheable with CGLIB generated proxies
due to missing (or improper) equals() and hashCode() implementations.
Although such deficiencies may not manifest themselves as bugs in Core
Spring's default arrangements, these might cause issues in custom
arrangements in user applications.
This commit addresses this by ensuring that ClassFilter and
MethodMatcher implementations properly implement equals() and
hashCode(). In addition, missing toString() implementations have been
added to improve diagnostics for logging and debugging.
Closes gh-23659
Spring Framework 5.2 M1 introduced a memory leak for applications using
@Async methods. Specifically, in a large test suite with multiple
ApplicationContexts that were closed (e.g., via @DirtiesContext,
@MockBean, or context cache eviction), the JVM process could run out of
memory.
Underlying cause: Due to a missing equals() implementation in Spring's
new AnnotationCandidateClassFilter, CGLIB's static cache of generated
classes indirectly retained references to BeanFactory instances for the
closed ApplicationContexts for the duration of the test suite.
This commit fixes this regression by introducing a proper equals()
implementation in AnnotationCandidateClassFilter. This commit also
introduces corresponding hashCode() and toString() implementations.
Closes gh-23571
This commit polishes tests in spring-aop by using
OrderComparator.sort() and lambda expressions instead of anonymous
classes where feasible.
Closes gh-23458
ClassLoaderAwareUndeclaredThrowableStrategy fails with a VerifyError on recent JDKs after the CGLIB 3.3 upgrade. The alternative is to replace it with a plain ClassLoaderAwareGeneratorStrategy (extracted from CglibSubclassingInstantiationStrategy) and custom UndeclaredThrowableException handling in CglibMethodInvocation.
See gh-23453
Organize test imports to expand all '.*' static imports into
fully qualified imports.
This update will allow us to use additional checkstyle rules in
the future, and will also help if we migrate fully to AssertJ.
* Add limited checkstyles to test code
Add a limited set of checkstyle rules to the test codebase to improve
code consistency.
* Fix checksyle violations in test code
* Organize imports to fix checkstyle for test code
* Migrate to assertThatExceptionOfType
Migrate aware from ExpectedException rules to AssertJ exception
assertions. Also include a checkstyle rules to ensure that the
the ExpectedException is not accidentally used in the future.
See gh-22894
