java.lang.IllegalAccessError when using PowerMock 1.6.0 and Mockito 1.10.16

From behran…@gmail.com on December 15, 2014 04:39:04

What steps will reproduce the problem? 1. The following test class can reproduce the issue:

@RunWith(PowerMockRunner.class) @PrepareForTest({StringBuilder.class}) public class BugTest {

@Before
public void setUp() throws Exception {
    mockStatic(StringBuilder.class);
}

@Test
public void testSomething() throws Exception {

}

} What is the expected output? What do you see instead? The test fails to run. Instead it breaks with the following stack trace:

java.lang.IllegalAccessError: tried to access class org.mockito.internal.creation.cglib.CGLIBHacker from class org.mockito.internal.creation.MethodInterceptorFilter at org.mockito.internal.creation.MethodInterceptorFilter.<init>(MethodInterceptorFilter.java:34) at org.powermock.api.mockito.internal.mockcreation.PowerMockMethodInterceptorFilter.<init>(PowerMockMethodInterceptorFilter.java:18) at org.powermock.api.mockito.internal.mockcreation.MockCreator.createMethodInvocationControl(MockCreator.java:108) at org.powermock.api.mockito.internal.mockcreation.MockCreator.mock(MockCreator.java:57) at org.powermock.api.mockito.PowerMockito.mockStatic(PowerMockito.java:70) at au.com.sensis.sitesmart.api.v1.AbstractSiteServletTest.setUp(AbstractSiteServletTest.java:31) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at org.junit.internal.runners.MethodRoadie.runBefores(MethodRoadie.java:129) at org.junit.internal.runners.MethodRoadie.runBeforesThenTestThenAfters(MethodRoadie.java:93) 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:122) at org.powermock.modules.junit4.common.internal.impl.JUnit4TestSuiteChunkerImpl.run(JUnit4TestSuiteChunkerImpl.java:106) at org.powermock.modules.junit4.common.internal.impl.AbstractCommonPowerMockRunner.run(AbstractCommonPowerMockRunner.java:53) at org.powermock.modules.junit4.PowerMockRunner.run(PowerMockRunner.java:59) at org.junit.runner.JUnitCore.run(JUnitCore.java:157) at com.intellij.junit4.JUnit4IdeaTestRunner.startRunnerWithArgs(JUnit4IdeaTestRunner.java:74) at com.intellij.rt.execution.junit.JUnitStarter.prepareStreamsAndStart(JUnitStarter.java:211) at com.intellij.rt.execution.junit.JUnitStarter.main(JUnitStarter.java:67) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57) at com.intellij.rt.execution.application.AppMain.main(AppMain.java:134) What version of the product are you using? On what operating system? PowerMock 1.6.0 with Mockito 1.10.16 using Java 1.7.0_72 on Ubuntu 14.04 64-bit

_Original issue: http://code.google.com/p/powermock/issues/detail?id=533_

[francovitali]

For the record, we downgraded “mockito-core” version and it worked:

testCompile ‘junit:junit:4.12’ testCompile ‘org.mockito:mockito-core:2.0.42-beta’ testCompile ‘org.powermock:powermock-module-junit4:1.6.6’ testCompile ‘org.powermock:powermock-api-mockito2:1.6.6’

[Poeschl]

I’m having the same problem with Powermock 1.6.6 and Mockito 2.0.24

    testCompile "junit:junit:4.12"
    testCompile "org.mockito:mockito-core:2.0.42"
    testCompile "org.powermock:powermock-module-junit4:1.6.6"
    testCompile "org.powermock:powermock-api-mockito2:1.6.6"