Compatibility issue with Gradle 8+

[big-andy-coates]

There seems to be compatibility issues with Gradle 8+

If ModulePluginSmokeTest is adjusted to run with Gradle 8.0, then lots of the tests fail.

💡 This does not mean the plugin won't work with Gradle 8 for you. However, it looks like at least some of the functionality is currently broken when using Gradle 8.

[big-andy-coates]

Looks like there's an issue with UniqueIdTrackingListener not being found when running with Gradle 8 and versions of JUnit older than v5.8.0. UniqueIdTrackingListener is added in Junit5 v5.8.0

Stacktrace

org.gradle.api.internal.tasks.testing.TestSuiteExecutionException: Could not start Gradle Test Executor 1. at org.gradle.api.internal.tasks.testing.SuiteTestClassProcessor.startProcessing(SuiteTestClassProcessor.java:44) at java.base@15.0.10/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at java.base@15.0.10/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:64) at java.base@15.0.10/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.base@15.0.10/java.lang.reflect.Method.invoke(Method.java:564) at org.gradle.internal.dispatch.ReflectionDispatch.dispatch(ReflectionDispatch.java:36) at org.gradle.internal.dispatch.ReflectionDispatch.dispatch(ReflectionDispatch.java:24) at org.gradle.internal.dispatch.ContextClassLoaderDispatch.dispatch(ContextClassLoaderDispatch.java:33) at org.gradle.internal.dispatch.ProxyDispatchAdapter$DispatchingInvocationHandler.invoke(ProxyDispatchAdapter.java:94) at com.sun.proxy.$Proxy2.startProcessing(Unknown Source) at org.gradle.api.internal.tasks.testing.worker.TestWorker$1.run(TestWorker.java:161) at org.gradle.api.internal.tasks.testing.worker.TestWorker.executeAndMaintainThreadName(TestWorker.java:129) at org.gradle.api.internal.tasks.testing.worker.TestWorker.execute(TestWorker.java:100) at org.gradle.api.internal.tasks.testing.worker.TestWorker.execute(TestWorker.java:60) at org.gradle.process.internal.worker.child.ActionExecutionWorker.execute(ActionExecutionWorker.java:56) at org.gradle.process.internal.worker.child.SystemApplicationClassLoaderWorker.call(SystemApplicationClassLoaderWorker.java:113) at org.gradle.process.internal.worker.child.SystemApplicationClassLoaderWorker.call(SystemApplicationClassLoaderWorker.java:65) at app//worker.org.gradle.process.internal.worker.GradleWorkerMain.run(GradleWorkerMain.java:69) at app//worker.org.gradle.process.internal.worker.GradleWorkerMain.main(GradleWorkerMain.java:74) Caused by: java.util.ServiceConfigurationError: org.junit.platform.launcher.TestExecutionListener: Provider org.junit.platform.launcher.listeners.UniqueIdTrackingListener not found at java.base/java.util.ServiceLoader.fail(ServiceLoader.java:591) at java.base/java.util.ServiceLoader$LazyClassPathLookupIterator.nextProviderClass(ServiceLoader.java:1213) at java.base/java.util.ServiceLoader$LazyClassPathLookupIterator.hasNextService(ServiceLoader.java:1222) at java.base/java.util.ServiceLoader$LazyClassPathLookupIterator.hasNext(ServiceLoader.java:1266) at java.base/java.util.ServiceLoader$2.hasNext(ServiceLoader.java:1301) at java.base/java.util.ServiceLoader$3.hasNext(ServiceLoader.java:1386) at java.base/java.util.Iterator.forEachRemaining(Iterator.java:132) at java.base/java.util.Spliterators$IteratorSpliterator.forEachRemaining(Spliterators.java:1801) at java.base/java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:484) at java.base/java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:474) at java.base/java.util.stream.ForEachOps$ForEachOp.evaluateSequential(ForEachOps.java:150) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.evaluateSequential(ForEachOps.java:173) at java.base/java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234) at java.base/java.util.stream.ReferencePipeline.forEach(ReferencePipeline.java:497) at org.junit.platform.launcher@1.7.1/org.junit.platform.launcher.core.LauncherFactory.create(LauncherFactory.java:108) at org.junit.platform.launcher@1.7.1/org.junit.platform.launcher.core.LauncherFactory.create(LauncherFactory.java:75) at org.gradle.api.internal.tasks.testing.junitplatform.JUnitPlatformTestClassProcessor$BackwardsCompatibleLauncherSession.open(JUnitPlatformTestClassProcessor.java:260) at org.gradle.api.internal.tasks.testing.junitplatform.JUnitPlatformTestClassProcessor.createTestExecutor(JUnitPlatformTestClassProcessor.java:77) at org.gradle.api.internal.tasks.testing.junit.AbstractJUnitTestClassProcessor.startProcessing(AbstractJUnitTestClassProcessor.java:50) at org.gradle.api.internal.tasks.testing.SuiteTestClassProcessor.startProcessing(SuiteTestClassProcessor.java:42) ... 18 more

What I've not been able to get to the bottom of is why its looking for UniqueIdTrackingListener and then failing to find it.

It's being loaded by the ServiceLoader, which suggests there's a module-info or METAINF/services entry somewhere that's referencing this type. Gradle8 does have a shadow copy of JUnit that contains UniqueIdTrackingListener, but no matching METAINF/services entry for org.junit.platform.launcher.TestExecutionListener.

Regardless, the fix seems to be to run with JUnit 5.8.0 or above if using Gradle 8 or above.