Prior to this commit, if AOP proxy generation was configured with
proxyTargetClass=true (which is the default behavior in recent versions
of Spring Boot), beans implemented as lambda expressions or method
references could not be proxied with CGLIB on Java 16 or higher without
specifying `--add-opens java.base/java.lang=ALL-UNNAMED`.
This commit addresses this shortcoming by ensuring that beans
implemented as lambda expressions or method references are always
proxied using a JDK dynamic proxy even if proxyTargetClass=true.
Closes gh-27971
Although this commit only applies to test classes, it serves to reduce
the noise when searching for undesirable usage of StringBuffer in
production code.
In order to be able to use text blocks and other new Java language
features, we are upgrading to a recent version of Checkstyle.
The latest version of spring-javaformat-checkstyle (0.0.28) is built
against Checkstyle 8.32 which does not include support for language
features such as text blocks. Support for text blocks was added in
Checkstyle 8.36.
In addition, there is a binary compatibility issue between
spring-javaformat-checkstyle 0.0.28 and Checkstyle 8.42. Thus we cannot
use Checkstyle 8.42 or higher.
In this commit, we therefore upgrade to spring-javaformat-checkstyle
0.0.28 and downgrade to Checkstyle 8.41.
This change is being applied to `5.3.x` as well as `main` in order to
benefit from the enhanced checking provided in more recent versions of
Checkstyle.
Closes gh-27481
To slightly improve performance, this commit switches to
StringBuilder.append(char) instead of StringBuilder.append(String)
whenever we append a single character to a StringBuilder.
Closes gh-27098
Prior to this commit, some tests would belong to the PERFORMANCE
`TestGroup`, while they were not testing for performance but rather
performing functional tests that involve long running operations or
timeouts.
This commit moves those tests to the LONG_RUNNING `TestGroup`.
See gh-24830
Prior to this commit we did not have tests in place to verify the status
quo for the invocation order of all advice types when declared within
a single aspect, either via the <aop:aspect> XML namespace or AspectJ
auto-proxy support.
This commit introduces such tests that demonstrate where such ordering
is broken or suboptimal.
The only test for which the advice invocation order is correct or at
least as expected is the afterAdviceTypes() test method in
ReflectiveAspectJAdvisorFactoryTests, where an AOP proxy is hand crafted
using ReflectiveAspectJAdvisorFactory without the use of Spring's
AspectJPrecedenceComparator.
See gh-25186
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
Sam Brannen