powermock issue : java.lang.IllegalStateException: Failed to transform class

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nihalnaik

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Sep 28, 2018, 2:23:27 AM9/28/18

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Hello,

We are running junit tests using maven 3.5.4 and seeing below issue for one of the tests. Can you please help me find out what could be done to resolve the issue

Please let me know if you need any more details or logs for analysis

Tests run: 1, Failures: 0, Errors: 1, Skipped: 0, Time elapsed: 0.541 sec <<< FAILURE! - in <Class_Name(hidden)>

initializationError(<Class_Name(hidden)>) Time elapsed: 0.018 sec <<< ERROR!

java.lang.IllegalStateException: Failed to transform class with name <Class_Name(hidden)>. Reason: null

at org.powermock.core.classloader.MockClassLoader.loadMockClass(MockClassLoader.java:296)

at org.powermock.core.classloader.MockClassLoader.loadModifiedClass(MockClassLoader.java:204)

at org.powermock.core.classloader.DeferSupportingClassLoader.loadClass1(DeferSupportingClassLoader.java:89)

at org.powermock.core.classloader.DeferSupportingClassLoader.loadClass(DeferSupportingClassLoader.java:79)

at java.base/java.lang.ClassLoader.loadClass(ClassLoader.java:521)

at java.base/java.lang.Class.forName0(Native Method)

at java.base/java.lang.Class.forName(Class.java:398)

at org.powermock.modules.junit4.common.internal.impl.JUnit4TestSuiteChunkerImpl.createDelegatorFromClassloader(JUnit4TestSuiteChunkerImpl.java:154)

at org.powermock.modules.junit4.common.internal.impl.JUnit4TestSuiteChunkerImpl.createDelegatorFromClassloader(JUnit4TestSuiteChunkerImpl.java:47)

at org.powermock.tests.utils.impl.AbstractTestSuiteChunkerImpl.createTestDelegators(AbstractTestSuiteChunkerImpl.java:107)

at org.powermock.modules.junit4.common.internal.impl.JUnit4TestSuiteChunkerImpl.<init>(JUnit4TestSuiteChunkerImpl.java:69)

at org.powermock.modules.junit4.common.internal.impl.AbstractCommonPowerMockRunner.<init>(AbstractCommonPowerMockRunner.java:36)

at org.powermock.modules.junit4.PowerMockRunner.<init>(PowerMockRunner.java:34)

at java.base/jdk.internal.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)

at java.base/jdk.internal.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62)

at java.base/jdk.internal.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)

at java.base/java.lang.reflect.Constructor.newInstance(Constructor.java:490)

at org.junit.internal.builders.AnnotatedBuilder.buildRunner(AnnotatedBuilder.java:31)

at org.junit.internal.builders.AnnotatedBuilder.runnerForClass(AnnotatedBuilder.java:24)

at org.junit.runners.model.RunnerBuilder.safeRunnerForClass(RunnerBuilder.java:57)

at org.junit.internal.builders.AllDefaultPossibilitiesBuilder.runnerForClass(AllDefaultPossibilitiesBuilder.java:29)

at org.junit.runners.model.RunnerBuilder.safeRunnerForClass(RunnerBuilder.java:57)

at org.junit.internal.requests.ClassRequest.getRunner(ClassRequest.java:24)

at org.apache.maven.surefire.junit4.JUnit4Provider.execute(JUnit4Provider.java:262)

at org.apache.maven.surefire.junit4.JUnit4Provider.executeTestSet(JUnit4Provider.java:153)

at org.apache.maven.surefire.junit4.JUnit4Provider.invoke(JUnit4Provider.java:124)

at org.apache.maven.surefire.booter.ForkedBooter.invokeProviderInSameClassLoader(ForkedBooter.java:200)

at org.apache.maven.surefire.booter.ForkedBooter.runSuitesInProcess(ForkedBooter.java:153)

at org.apache.maven.surefire.booter.ForkedBooter.main(ForkedBooter.java:103)

Caused by: java.util.ConcurrentModificationException: null

at java.base/java.util.ArrayList$Itr.checkForComodification(ArrayList.java:1042)

at java.base/java.util.ArrayList$Itr.next(ArrayList.java:996)

at javassist.CtClassType.instrument(CtClassType.java:1540)

at org.powermock.core.transformers.impl.ClassMockTransformer.transformMockClass(ClassMockTransformer.java:65)

at org.powermock.core.transformers.impl.AbstractMainMockTransformer.transform(AbstractMainMockTransformer.java:62)

at org.powermock.core.classloader.MockClassLoader.loadMockClass(MockClassLoader.java:277)