JUnit tests fail with `java.lang.InternalError: no stack frame matched test class`

[jansorg]

Sometimes, unit tests (JUnit 4 via Gradle) fail with the stacktrace below. This does not happen everytime, as far as I can tell.
Test failure on CI: https://github.com/getappmap/appmap-intellij-plugin/actions/runs/18888383411/job/53909609198#step:6:2394

    java.lang.InternalError: no stack frame matched test class 
    	at com.appland.appmap.process.hooks.test.TestSupport.findErrorFrame(TestSupport.java:76) 
    	at com.appland.appmap.process.hooks.test.JUnit.junitTest(JUnit.java:34) 
    	at appland.toolwindow.runtimeAnalysis.RuntimeAnalysisModelTest.hierarchy(RuntimeAnalysisModelTest.java:106) 
    	at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method) 
    	at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:77) 
    	at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) 
    	at java.base/java.lang.reflect.Method.invoke(Method.java:568) 
    	at org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:59) 
    	at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:12) 
    	at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:56) 
    	at org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:17) 
    	at org.junit.internal.runners.statements.RunBefores.evaluate(RunBefores.java:26) 
    	at org.junit.internal.runners.statements.RunAfters.evaluate(RunAfters.java:27) 
    	at com.intellij.testFramework.UsefulTestCase.lambda$wrapTestRunnable$13(UsefulTestCase.java:504) 
    	at com.intellij.testFramework.UsefulTestCase.runTestRunnable(UsefulTestCase.java:408) 
    	at com.intellij.testFramework.fixtures.BasePlatformTestCase.runTestRunnable(BasePlatformTestCase.java:109) 
    	at com.intellij.testFramework.UsefulTestCase.defaultRunBare(UsefulTestCase.java:424) 
    	at com.intellij.testFramework.UsefulTestCase.runBare(UsefulTestCase.java:494) 
    	at com.intellij.testFramework.UsefulTestCase$1.evaluate(UsefulTestCase.java:156) 
    	at org.junit.runners.ParentRunner$3.evaluate(ParentRunner.java:306) 
    	at org.junit.runners.BlockJUnit4ClassRunner$1.evaluate(BlockJUnit4ClassRunner.java:100) 
    	at org.junit.runners.ParentRunner.runLeaf(ParentRunner.java:366) 
    	at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:103) 
    	at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:63) 
    	at org.junit.runners.ParentRunner$4.run(ParentRunner.java:331) 
    	at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:79) 
    	at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:329) 
    	at org.junit.runners.ParentRunner.access$100(ParentRunner.java:66) 
    	at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:293) 
    	at org.junit.runners.ParentRunner$3.evaluate(ParentRunner.java:306) 
    	at org.junit.runners.ParentRunner.run(ParentRunner.java:413) 
    	at org.gradle.api.internal.tasks.testing.junit.JUnitTestClassExecutor.runTestClass(JUnitTestClassExecutor.java:112) 
    	at org.gradle.api.internal.tasks.testing.junit.JUnitTestClassExecutor.execute(JUnitTestClassExecutor.java:58) 
    	at org.gradle.api.internal.tasks.testing.junit.JUnitTestClassExecutor.execute(JUnitTestClassExecutor.java:40) 
    	at org.gradle.api.internal.tasks.testing.junit.AbstractJUnitTestClassProcessor.processTestClass(AbstractJUnitTestClassProcessor.java:54) 
    	at org.gradle.api.internal.tasks.testing.SuiteTestClassProcessor.processTestClass(SuiteTestClassProcessor.java:53) 
    	at jdk.internal.reflect.GeneratedMethodAccessor49.invoke(Unknown Source) 
    	at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) 
    	at java.base/java.lang.reflect.Method.invoke(Method.java:568) 
    	at org.gradle.internal.dispatch.ReflectionDispatch.dispatch(ReflectionDispatch.java:36) 
    	at org.gradle.internal.dispatch.ReflectionDispatch.dispatch(ReflectionDispatch.java:24) 
    	at org.gradle.internal.dispatch.ContextClassLoaderDispatch.dispatch(ContextClassLoaderDispatch.java:33) 
    	at org.gradle.internal.dispatch.ProxyDispatchAdapter$DispatchingInvocationHandler.invoke(ProxyDispatchAdapter.java:92) 
    	at jdk.proxy3/jdk.proxy3.$Proxy48.processTestClass(Unknown Source) 
    	at org.gradle.api.internal.tasks.testing.worker.TestWorker$2.run(TestWorker.java:183) 
    	at org.gradle.api.internal.tasks.testing.worker.TestWorker.executeAndMaintainThreadName(TestWorker.java:132) 
    	at org.gradle.api.internal.tasks.testing.worker.TestWorker.execute(TestWorker.java:103) 
    	at org.gradle.api.internal.tasks.testing.worker.TestWorker.execute(TestWorker.java:63) 
    	at org.gradle.process.internal.worker.child.ActionExecutionWorker.execute(ActionExecutionWorker.java:56) 
    	at org.gradle.process.internal.worker.child.SystemApplicationClassLoaderWorker.call(SystemApplicationClassLoaderWorker.java:122) 
    	at org.gradle.process.internal.worker.child.SystemApplicationClassLoaderWorker.call(SystemApplicationClassLoaderWorker.java:72) 
    	at worker.org.gradle.process.internal.worker.GradleWorkerMain.run(GradleWorkerMain.java:69) 
    	at worker.org.gradle.process.internal.worker.GradleWorkerMain.main(GradleWorkerMain.java:74) 

[dividedmind]

This happens when the test fails by rethrowing an exception raised in another thread. In this scenario, the test itself is not in the stack trace of the exception, which causes this error. #307 should fix it (once I get it to pass CI). You're welcome to grab this code and verify — I was able to reproduce the problem reliably by modifying the test in question to always fail by changing the expected value.

[appland-release]

🎉 This issue has been resolved in version 1.28.1 🎉

The release is available on:

• v1.28.1
• GitHub release

Your semantic-release bot 📦🚀