This commit introduces a globally applied Checkstyle rule which
enforces the use of class literals for primitive types and void by
forbidding the use of the TYPE constants in Boolean, Character, Byte,
Short, Integer, Long, Float, Double, and Void.
For example, if MyClass uses one of the TYPE constants, the build will
now fail with a message similar to the following.
[ERROR] <...>/MyClass.java:39: Please use class literals for primitives and void -- for example, int.class instead of Integer.TYPE.
This commit introduces @DisabledInAotMode in the TestContext
framework to support the following use cases.
- Disabling AOT build-time processing of a test ApplicationContext --
applicable to any testing framework (JUnit 4, JUnit Jupiter, etc.).
- Disabling an entire test class or a single test method at run time
when the test suite is run with AOT optimizations enabled -- only
applicable to JUnit Jupiter based tests.
Closes gh-30834
As a workaround before a proper solution the Spring team is trying to
find with the Hibernate team in a future version of Hibernate, this
commit introduces 2 GraalVM substitutions that should allow to remove
ByteBuddy reachability with Hibernate 6.3.
Closes gh-29549
VirtualThreadDelegate built on JDK 21 for multi-release jar.
Includes dedicated VirtualThreadTaskExecutor as lean option.
Includes setVirtualThreads flag on SimpleAsyncTaskExecutor.
Includes additional default methods on AsyncTaskExecutor.
Closes gh-30241
This commit picks up where the two previous commits left off.
Specifically, this commit:
- Removes the "severity=warning" configuration to ensure that violations
actually fail the build.
- Fixes regular expressions for suppressions by matching forward
slashes using `[\\/]` instead of `\/`.
- Moves the configuration for newly introduced checks to locations in
checkstyle.xml that align with the existing organization of that file.
- Renames the IDs for RegexpSinglelineJava checks from
javaDocPackageNonNullApiAnnotation/javaDocPackageNonNullFieldsAnnotation
to packageLevelNonNullApiAnnotation/packageLevelNonNullFieldsAnnotation,
respectively, since these checks are not related to Javadoc.
- Simplifies the null-safety annotation checks to match against
imported annotation types, which enforces consistency across
package-info.java files for the annotation declarations.
- Simplifies the RegEx for JavadocPackage suppressions to only exclude
packages not under src/main/java (vs src/main) and those in the
framework-docs module.
- Consistently suppresses all checks for the `asm`, `cglib`, `objenesis`,
and `javapoet` packages in spring-core.
- Adds explicit suppressions for null-safety annotations for the `lang`
package in spring-core.
- Adds explicit suppressions for null-safety annotations for the
`org.aopalliance` package in spring-aop.
- Revises the RegEx for null-safety annotation suppressions to only
exclude package-info.java files not under src/main/java and
additionally to exclude package-info.java files in the framework-docs
module as well as those in the spring-context-indexer,
spring-instrument, and spring-jcl modules.
- Adds all missing package-info.java files.
- Adds null-safety annotations to package-info.java files where
appropriate.
Closes gh-30069
This commit updates the project's checkstyle configuration to check
that package-info.java files contain the @NonNullApi and @NonNullFields
null-safety annotations.
See gh-30069
This commit updates the project's checkstyle configuration to require
the existence of a package-info.java file for all packages within the
src/main directory while excluding the framework-docs module and
certain packages inside the spring-core module. A missing
package-info.java file will result in emitting a warning.
See gh-30069
This commit introduces tests which serve as "regression tests" for the
behavior of PathMatchingResourcePatternResolver in Spring Framework
5.3.x with regard to URL-encoding and Unicode normalization of resource
paths.
Specifically, the new tests demonstrate that resource paths do NOT need
to be decoded or normalized in 5.3.x.
See gh-29243
This commit introduces automatic registration of a runtime hint for
classpath resources configured via the `value` attribute in
@WebAppConfiguration.
Closes gh-29026
This commit provides an alternative
java.beans.Introspector#findCustomizerClass implementation
via a GraalVM substitution that avoids to include thousands
of unused AWT classes in the native image.
Closes gh-29060
This commit introduces the TestClassScanner which scans provided
classpath roots for Spring integration test classes using the JUnit
Platform Launcher API which allows all registered TestEngines to
discover tests according to their own rules.
The scanner currently detects the following categories of Spring
integration test classes.
- JUnit Jupiter: classes that register the SpringExtension via
@ExtendWith.
- JUnit 4: classes that register the SpringJUnit4ClassRunner or
SpringRunner via @RunWith.
- Generic: classes that are annotated with @ContextConfiguration or
@BootstrapWith.
The scanner has been tested with the following TestEngine
implementations for the JUnit Platform.
- JUnit Jupiter
- JUnit Vintage
- JUnit Platform Suite Engine
- TestNG Engine for the JUnit Platform
Closes gh-28824
This commit adds the supporting testing infrastructure using the
`RuntimeHintsAgent`. Given that the agent is loaded by the JVM running
the test suite, we can then use it to record method invocations at
runtime and check whether the prepared `RuntimeHints` match the expected
behavior.
This commit contributes the `RuntimeHintsRecorder`. With this, we can
record relevant method invocations for a given lambda, focusing on a
specific part of the code behavior. This returns a
`RuntimeHintsInvocations` instance, which is an AssertJ assert provider.
From there, we can perform assertions on the recorded invocations and
check that a given collection of hints cover the reflection, resources
and proxies needs at runtime.
This also ships the `@EnabledIfRuntimeHintsAgent` opinionated
annotation: this applies the `RuntimeHintsAgentCondition` JUnit
extension that detects whether the `RuntimeHintsAgent` is loaded by the
current JVM. Tests annotated with this will be skipped if the agent is
not present. This annotation is also tagged with a JUnit `@Tag` to
gather such tests in a specific `"RuntimeHintsTests"` test suite.
In the Spring Framework build, we have chosen to isolate such tests and
not load the agent for the main test suite ("RuntimeHintsTests" tests
are excluded from the main suite). While the agent's intent is to be as
transparent as possible, there are security and access considerations
that could interefere with other tests.
With this approach, we can then create a separate test suite and run
agent tests in a dedicated JVM.
Note that projects using this infrastructure can choose to use the
condition by itself in a custom annotation.
Here is an example of this testing infrastructure:
```
@EnabledIfRuntimeHintsAgent
class MyTestCases {
@Test
void hintsForMethodsReflectionShouldMatch() {
RuntimeHints hints = new RuntimeHints();
hints.reflection().registerType(String.class,
hint -> hint.withMembers(MemberCategory.INTROSPECT_PUBLIC_METHODS));
RuntimeHintsInvocations invocations = RuntimeHintsRecorder.record(() -> {
Method[] methods = String.class.getMethods();
});
assertThat(invocations).match(hints);
}
}
```
See gh-27981
Update the `TestCompiler` so that classes can be defined using
a `Lookup`. This update allows package-private classes to be
accessed without needing a quite so unusual classloader setup.
The `@CompileWithTargetClassAccess` should be added to any
test that needs to use `Lookup` based defines. The test will
run with a completed forked classloader so not to pollute the
main classloader.
This commit also adds some useful additional APIs.
See gh-28120
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
