Does this error also occur when you run your tests in Eclipse in normal “run” mode (no coverage)?
In this case JaCoCo or EclEmma is not involved in your runtime classpath at all. And even when you run your application with with JaCoCo the JaCoCo agent includes its own repackaged version of ASM which will not interfere with other ASM versions on the class path. Regards, -marc > On 21. Jun 2019, at 17:12, jahunsmythe <[email protected]> > wrote: > > This error does not occur with command line builds of my project. > > But in Eclipse, when running the JUnit tests, this error occurs. > I am assuming that this is occurring is the version of JaCoCo that EclEmma is > using has a dependency on an older version of ASM that has not fixed the > problem with NestHost and NestMembers. > Just an FYI: I am using EclEmma/JaCoCo combined with JMockit. This > shouldn't be the cause, as this is a known problem with ASM. > See the JMockit issue for more information about this: > > https://github.com/jmockit/jmockit1/pull/555 > <https://github.com/jmockit/jmockit1/pull/555> > > My environment: > > Windows 10 > Eclipse 2019-03 > Java 11.0.1 > JUnit 5 > JMockit 1.46 > ASM 7.1 > > The Exception from a JUnit test in Eclipse that is failing: > > java.lang.UnsupportedOperationException: class redefinition failed: attempted > to change the class NestHost or NestMembers attribute > at > java.instrument/sun.instrument.InstrumentationImpl.redefineClasses0(Native > Method) > at > java.instrument/sun.instrument.InstrumentationImpl.redefineClasses(InstrumentationImpl.java:193) > at mockit.internal.startup.Startup.redefineMethods(Startup.java:159) > at > mockit.internal.state.MockFixture.redefineClasses(MockFixture.java:159) > at > mockit.internal.expectations.mocking.BaseTypeRedefinition.applyClassRedefinition(BaseTypeRedefinition.java:221) > at > mockit.internal.expectations.mocking.BaseTypeRedefinition.redefineClass(BaseTypeRedefinition.java:215) > at > mockit.internal.expectations.mocking.BaseTypeRedefinition.redefineClassAndItsSuperClasses(BaseTypeRedefinition.java:188) > at > mockit.internal.expectations.mocking.BaseTypeRedefinition.redefineClassAndItsSuperClasses(BaseTypeRedefinition.java:204) > at > mockit.internal.expectations.mocking.BaseTypeRedefinition.redefineMethodsAndConstructorsInTargetType(BaseTypeRedefinition.java:175) > at > mockit.internal.expectations.mocking.BaseTypeRedefinition.redefineTargetClassAndCreateInstanceFactory(BaseTypeRedefinition.java:251) > at > mockit.internal.expectations.mocking.BaseTypeRedefinition.redefineType(BaseTypeRedefinition.java:67) > at > mockit.internal.expectations.mocking.TypeRedefinition.redefineType(TypeRedefinition.java:28) > at > mockit.internal.expectations.mocking.FieldTypeRedefinitions.redefineFieldType(FieldTypeRedefinitions.java:78) > at > mockit.internal.expectations.mocking.FieldTypeRedefinitions.redefineFieldType(FieldTypeRedefinitions.java:65) > at > mockit.internal.expectations.mocking.FieldTypeRedefinitions.redefineFieldTypes(FieldTypeRedefinitions.java:53) > at > mockit.internal.expectations.mocking.FieldTypeRedefinitions.<init>(FieldTypeRedefinitions.java:33) > at > mockit.integration.internal.TestRunnerDecorator.handleMockFieldsForWholeTestClass(TestRunnerDecorator.java:141) > at > mockit.integration.junit5.JMockitExtension.postProcessTestInstance(JMockitExtension.java:52) > at > org.junit.jupiter.engine.descriptor.ClassTestDescriptor.lambda$invokeTestInstancePostProcessors$3(ClassTestDescriptor.java:215) > at > org.junit.jupiter.engine.descriptor.JupiterTestDescriptor.executeAndMaskThrowable(JupiterTestDescriptor.java:141) > at > org.junit.jupiter.engine.descriptor.ClassTestDescriptor.lambda$invokeTestInstancePostProcessors$4(ClassTestDescriptor.java:215) > at > java.base/java.util.stream.ReferencePipeline$3$1.accept(ReferencePipeline.java:195) > at > java.base/java.util.stream.ReferencePipeline$2$1.accept(ReferencePipeline.java:177) > at > java.base/java.util.ArrayList$ArrayListSpliterator.forEachRemaining(ArrayList.java:1654) > 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.StreamSpliterators$WrappingSpliterator.forEachRemaining(StreamSpliterators.java:312) > at > java.base/java.util.stream.Streams$ConcatSpliterator.forEachRemaining(Streams.java:734) > at > java.base/java.util.stream.Streams$ConcatSpliterator.forEachRemaining(Streams.java:734) > at > java.base/java.util.stream.ReferencePipeline$Head.forEach(ReferencePipeline.java:658) > at > org.junit.jupiter.engine.descriptor.ClassTestDescriptor.invokeTestInstancePostProcessors(ClassTestDescriptor.java:214) > at > org.junit.jupiter.engine.descriptor.ClassTestDescriptor.instantiateAndPostProcessTestInstance(ClassTestDescriptor.java:196) > at > org.junit.jupiter.engine.descriptor.ClassTestDescriptor.lambda$testInstanceProvider$0(ClassTestDescriptor.java:185) > at > org.junit.jupiter.engine.descriptor.ClassTestDescriptor.lambda$testInstanceProvider$1(ClassTestDescriptor.java:189) > at java.base/java.util.Optional.orElseGet(Optional.java:369) > at > org.junit.jupiter.engine.descriptor.ClassTestDescriptor.lambda$testInstanceProvider$2(ClassTestDescriptor.java:188) > at > org.junit.jupiter.engine.descriptor.TestMethodTestDescriptor.prepare(TestMethodTestDescriptor.java:81) > at > org.junit.jupiter.engine.descriptor.TestMethodTestDescriptor.prepare(TestMethodTestDescriptor.java:58) > at > org.junit.platform.engine.support.hierarchical.HierarchicalTestExecutor$NodeExecutor.prepare(HierarchicalTestExecutor.java:89) > at > org.junit.platform.engine.support.hierarchical.HierarchicalTestExecutor$NodeExecutor.execute(HierarchicalTestExecutor.java:74) > at > org.junit.platform.engine.support.hierarchical.HierarchicalTestExecutor$NodeExecutor.lambda$executeRecursively$2(HierarchicalTestExecutor.java:121) > at > java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.accept(ForEachOps.java:183) > at > java.base/java.util.stream.ReferencePipeline$2$1.accept(ReferencePipeline.java:177) > at java.base/java.util.Iterator.forEachRemaining(Iterator.java:133) > at > java.base/java.util.Spliterators$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$OfRef.evaluateSequential(ForEachOps.java:173) > at > java.base/java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234) > at > java.base/java.util.stream.ReferencePipeline.forEach(ReferencePipeline.java:497) > at > org.junit.platform.engine.support.hierarchical.HierarchicalTestExecutor$NodeExecutor.lambda$executeRecursively$3(HierarchicalTestExecutor.java:121) > at > org.junit.platform.engine.support.hierarchical.SingleTestExecutor.executeSafely(SingleTestExecutor.java:66) > at > org.junit.platform.engine.support.hierarchical.HierarchicalTestExecutor$NodeExecutor.executeRecursively(HierarchicalTestExecutor.java:108) > at > org.junit.platform.engine.support.hierarchical.HierarchicalTestExecutor$NodeExecutor.execute(HierarchicalTestExecutor.java:79) > at > org.junit.platform.engine.support.hierarchical.HierarchicalTestExecutor$NodeExecutor.lambda$executeRecursively$2(HierarchicalTestExecutor.java:121) > at > java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.accept(ForEachOps.java:183) > at > java.base/java.util.stream.ReferencePipeline$2$1.accept(ReferencePipeline.java:177) > at java.base/java.util.Iterator.forEachRemaining(Iterator.java:133) > at > java.base/java.util.Spliterators$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$OfRef.evaluateSequential(ForEachOps.java:173) > at > java.base/java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234) > at > java.base/java.util.stream.ReferencePipeline.forEach(ReferencePipeline.java:497) > at > org.junit.platform.engine.support.hierarchical.HierarchicalTestExecutor$NodeExecutor.lambda$executeRecursively$3(HierarchicalTestExecutor.java:121) > at > org.junit.platform.engine.support.hierarchical.SingleTestExecutor.executeSafely(SingleTestExecutor.java:66) > at > org.junit.platform.engine.support.hierarchical.HierarchicalTestExecutor$NodeExecutor.executeRecursively(HierarchicalTestExecutor.java:108) > at > org.junit.platform.engine.support.hierarchical.HierarchicalTestExecutor$NodeExecutor.execute(HierarchicalTestExecutor.java:79) > at > org.junit.platform.engine.support.hierarchical.HierarchicalTestExecutor.execute(HierarchicalTestExecutor.java:55) > at > org.junit.platform.engine.support.hierarchical.HierarchicalTestEngine.execute(HierarchicalTestEngine.java:43) > at > org.junit.platform.launcher.core.DefaultLauncher.execute(DefaultLauncher.java:229) > at > org.junit.platform.launcher.core.DefaultLauncher.lambda$execute$6(DefaultLauncher.java:197) > at > org.junit.platform.launcher.core.DefaultLauncher.withInterceptedStreams(DefaultLauncher.java:211) > at > org.junit.platform.launcher.core.DefaultLauncher.execute(DefaultLauncher.java:191) > at > org.junit.platform.launcher.core.DefaultLauncher.execute(DefaultLauncher.java:137) > at > org.eclipse.jdt.internal.junit5.runner.JUnit5TestReference.run(JUnit5TestReference.java:89) > at > org.eclipse.jdt.internal.junit.runner.TestExecution.run(TestExecution.java:41) > at > org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:541) > at > org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:763) > at > org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.run(RemoteTestRunner.java:463) > at > org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.main(RemoteTestRunner.java:209) > > > -- > You received this message because you are subscribed to the Google Groups > "JaCoCo and EclEmma Users" group. > To unsubscribe from this group 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