PowerMock LinkageError: MockClassLoader javax/management/MBeanServer
13,771
Solved by adding the following class level annotation:
@PowerMockIgnore( {"javax.management.*"})
Comments
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javaPlease42 almost 2 years
I'm seeing the following PowerMock/EasyMock error with the following JARS:
Jars
- activemq-all-5.9.0.jar
- com.ibm.mq.headers-7.0.1.5.jar
- com.ibm.mq.jmqi-7.5.0.0.jar
- com.ibm.mqjms-7.5.0.0.jar
- javassist-3.9.0.GA.jar
- junit-4.10.jar
- powermock-easymock-1.5.1-full.jar
- com.ibm.mq-7.0.1.5.jar
- easymock-3.2.jar
- objenesis-2.1.jar
- cglib-nodep-2.2.jar
- easymockclassextension-2.4.jar
- com.ibm.disthub2-1.jar
Runtime Error:
java.lang.NoClassDefFoundError: com.ibm.mq.jms.MQQueueConnectionFactory$$EnhancerByCGLIB$$7cb492ab (initialization failure) at java.lang.J9VMInternals.initialize(J9VMInternals.java:140) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:60) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:37) at java.lang.reflect.Method.invoke(Method.java:611) at net.sf.cglib.proxy.Enhancer.setCallbacksHelper(Enhancer.java:619) at net.sf.cglib.proxy.Enhancer.setThreadCallbacks(Enhancer.java:612) at net.sf.cglib.proxy.Enhancer.registerCallbacks(Enhancer.java:581) at org.easymock.internal.ClassProxyFactory.createProxy(ClassProxyFactory.java:251) at org.easymock.internal.MocksControl.createMock(MocksControl.java:114) at org.easymock.internal.MocksControl.createMock(MocksControl.java:88) at org.easymock.internal.MocksControl.createMock(MocksControl.java:79) at org.powermock.api.easymock.PowerMock.doCreateMock(PowerMock.java:2212) at org.powermock.api.easymock.PowerMock.doMock(PowerMock.java:2163) at org.powermock.api.easymock.PowerMock.createNiceMock(PowerMock.java:187) at QueueServiceTest.testSendMessage(QueueServiceTest.java:30) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:60) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:37) at java.lang.reflect.Method.invoke(Method.java:611) at org.junit.internal.runners.TestMethod.invoke(TestMethod.java:66) at org.powermock.modules.junit4.internal.impl.PowerMockJUnit44RunnerDelegateImpl$PowerMockJUnit44MethodRunner.runTestMethod(PowerMockJUnit44RunnerDelegateImpl.java:310) at org.junit.internal.runners.MethodRoadie$2.run(MethodRoadie.java:86) at org.junit.internal.runners.MethodRoadie.runBeforesThenTestThenAfters(MethodRoadie.java:94) at org.powermock.modules.junit4.internal.impl.PowerMockJUnit44RunnerDelegateImpl$PowerMockJUnit44MethodRunner.executeTest(PowerMockJUnit44RunnerDelegateImpl.java:294) at org.powermock.modules.junit4.internal.impl.PowerMockJUnit47RunnerDelegateImpl$PowerMockJUnit47MethodRunner.executeTestInSuper(PowerMockJUnit47RunnerDelegateImpl.java:127) at org.powermock.modules.junit4.internal.impl.PowerMockJUnit47RunnerDelegateImpl$PowerMockJUnit47MethodRunner.executeTest(PowerMockJUnit47RunnerDelegateImpl.java:82) at org.powermock.modules.junit4.internal.impl.PowerMockJUnit44RunnerDelegateImpl$PowerMockJUnit44MethodRunner.runBeforesThenTestThenAfters(PowerMockJUnit44RunnerDelegateImpl.java:282) at org.junit.internal.runners.MethodRoadie.runTest(MethodRoadie.java:84) at org.junit.internal.runners.MethodRoadie.run(MethodRoadie.java:49) at org.powermock.modules.junit4.internal.impl.PowerMockJUnit44RunnerDelegateImpl.invokeTestMethod(PowerMockJUnit44RunnerDelegateImpl.java:207) at org.powermock.modules.junit4.internal.impl.PowerMockJUnit44RunnerDelegateImpl.runMethods(PowerMockJUnit44RunnerDelegateImpl.java:146) at org.powermock.modules.junit4.internal.impl.PowerMockJUnit44RunnerDelegateImpl$1.run(PowerMockJUnit44RunnerDelegateImpl.java:120) at org.junit.internal.runners.ClassRoadie.runUnprotected(ClassRoadie.java:34) at org.junit.internal.runners.ClassRoadie.runProtected(ClassRoadie.java:44) at org.powermock.modules.junit4.internal.impl.PowerMockJUnit44RunnerDelegateImpl.run(PowerMockJUnit44RunnerDelegateImpl.java:118) at org.powermock.modules.junit4.common.internal.impl.JUnit4TestSuiteChunkerImpl.run(JUnit4TestSuiteChunkerImpl.java:101) at org.powermock.modules.junit4.common.internal.impl.AbstractCommonPowerMockRunner.run(AbstractCommonPowerMockRunner.java:53) at org.powermock.modules.junit4.PowerMockRunner.run(PowerMockRunner.java:53) at org.eclipse.jdt.internal.junit4.runner.JUnit4TestReference.run(JUnit4TestReference.java:49) at org.eclipse.jdt.internal.junit.runner.TestExecution.run(TestExecution.java:38) at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:467) at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:683) at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.run(RemoteTestRunner.java:390) at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.main(RemoteTestRunner.java:197) Caused by: java.lang.LinkageError: loading constraint violation: loader "org/powermock/core/classloader/MockClassLoader@4b564b56" previously initiated loading for a different type with name "javax/management/MBeanServer" defined by loader "com/ibm/oti/vm/BootstrapClassLoader@17e717e7" at java.lang.ClassLoader.defineClass(ClassLoader.java:275) at java.lang.ClassLoader.defineClass(ClassLoader.java:212) at org.powermock.core.classloader.MockClassLoader.loadUnmockedClass(MockClassLoader.java:201) at org.powermock.core.classloader.MockClassLoader.loadModifiedClass(MockClassLoader.java:149) at org.powermock.core.classloader.DeferSupportingClassLoader.loadClass(DeferSupportingClassLoader.java:67) at java.lang.ClassLoader.loadClass(ClassLoader.java:626) at com.ibm.msg.client.commonservices.monitor.MonitorAgent.registerMBean(MonitorAgent.java:176) at com.ibm.msg.client.commonservices.propertystore.PropertyStore.intializePropertyStoreControl(PropertyStore.java:751) at com.ibm.msg.client.commonservices.propertystore.PropertyStore.initialize(PropertyStore.java:515) at com.ibm.msg.client.commonservices.CommonServices.<clinit>(CommonServices.java:119) at java.lang.J9VMInternals.initializeImpl(Native Method) at java.lang.J9VMInternals.initialize(J9VMInternals.java:200) at com.ibm.msg.client.commonservices.propertystore.PropertyStore.initialize(PropertyStore.java:512) at com.ibm.msg.client.commonservices.propertystore.PropertyStore.<clinit>(PropertyStore.java:235) at java.lang.J9VMInternals.initializeImpl(Native Method) at java.lang.J9VMInternals.initialize(J9VMInternals.java:200) at com.ibm.msg.client.commonservices.trace.Trace.<clinit>(Trace.java:469) at java.lang.J9VMInternals.initializeImpl(Native Method) at java.lang.J9VMInternals.initialize(J9VMInternals.java:200) at java.lang.Class.forNameImpl(Native Method) at java.lang.Class.forName(Class.java:139) at javassist.runtime.Desc.getClassObject(Desc.java:43) at javassist.runtime.Desc.getClazz(Desc.java:52) at com.ibm.msg.client.jms.internal.JmsReadablePropertyContextImpl.<clinit>(JmsReadablePropertyContextImpl.java:49) at java.lang.J9VMInternals.initializeImpl(Native Method) at java.lang.J9VMInternals.initialize(J9VMInternals.java:200) at java.lang.J9VMInternals.initialize(J9VMInternals.java:167) at java.lang.J9VMInternals.initialize(J9VMInternals.java:167) at java.lang.J9VMInternals.initialize(J9VMInternals.java:167) at java.lang.J9VMInternals.initialize(J9VMInternals.java:167) at java.lang.J9VMInternals.initialize(J9VMInternals.java:167) at java.lang.J9VMInternals.initialize(J9VMInternals.java:167) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:60) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:37) at java.lang.reflect.Method.invoke(Method.java:611) at net.sf.cglib.proxy.Enhancer.setCallbacksHelper(Enhancer.java:619) at net.sf.cglib.proxy.Enhancer.setThreadCallbacks(Enhancer.java:612) at net.sf.cglib.proxy.Enhancer.registerCallbacks(Enhancer.java:581) at org.easymock.internal.ClassProxyFactory.createProxy(ClassProxyFactory.java:189) ... 36 more