PowerMockRunner verursacht ExceptionInInitializerError, wenn Trivialtest ausgeführt wird

Question

Ich kann eine sehr einfache Testklasse nicht mit dem Powermock-Testlauf ausführen. Es verursacht einen ExceptionInInitializerError. Es scheint ein Problem mit den Abhängigkeiten vom Klassenpfad zu sein, jedoch habe ich einige Varianten der Abhängigkeitsversionen ausprobiert, aber alle verursachen den gleichen Fehler. Wie kann ich diesen einfachen Test bestehen, wenn ich den Powermock Test Runner verwende?

Der Testcode:

package net.solasistim.hello; 

import org.junit.Test; 
import org.junit.Assert; 
import org.junit.runner.RunWith; 
import org.powermock.modules.junit4.PowerMockRunner; 

@RunWith(PowerMockRunner.class) 
public class HelloTest { 
    @Test 
    public void testMain() { 
     Assert.assertTrue(true); 
    } 
} 

POM Projekt:

<project> 
    <modelVersion>4.0.0</modelVersion> 
    <groupId>net.solasistim.hello</groupId> 
    <artifactId>hello</artifactId> 
    <version>1</version> 
    <packaging>jar</packaging> 

    <properties> 
    <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding> 
    <powermock.version>1.5</powermock.version> 
    </properties> 

    <dependencies> 
    <dependency> 
     <groupId>junit</groupId> 
     <artifactId>junit</artifactId> 
     <version>4.11</version> 
     <scope>test</scope> 
    </dependency> 
    <dependency> 
     <groupId>org.powermock</groupId> 
     <artifactId>powermock-module-junit4</artifactId> 
     <version>${powermock.version}</version> 
     <scope>test</scope> 
    </dependency> 
    <dependency> 
     <groupId>org.powermock</groupId> 
     <artifactId>powermock-api-easymock</artifactId> 
     <version>${powermock.version}</version> 
     <scope>test</scope> 
    </dependency> 
    <dependency> 
     <groupId>cglib</groupId> 
     <artifactId>cglib</artifactId> 
     <version>3.0</version> 
     <scope>test</scope> 
    </dependency> 
    <dependency> 
     <groupId>org.ow2.asm</groupId> 
     <artifactId>asm</artifactId> 
     <version>4.1</version> 
     <scope>test</scope> 
    </dependency> 
    </dependencies> 
</project> 

mvn clean compile test bewirkt, dass die folgende Ausgabe Lauf:

------------------------------------------------------------------------------- 
Test set: net.solasistim.hello.HelloTest 
------------------------------------------------------------------------------- 
Tests run: 1, Failures: 0, Errors: 1, Skipped: 0, Time elapsed: 0.097 sec <<< FAILURE! 
initializationError(net.solasistim.hello.HelloTest) Time elapsed: 0.007 sec <<< ERROR! 
java.lang.ExceptionInInitializerError 
     at org.powermock.api.extension.proxyframework.ProxyFrameworkImpl.isProxy(ProxyFrameworkImpl.java:29) 
     at org.powermock.reflect.internal.WhiteboxImpl.getUnmockedType(WhiteboxImpl.java:1783) 
     at org.powermock.reflect.internal.WhiteboxImpl.getType(WhiteboxImpl.java:2237) 
     at org.powermock.reflect.internal.WhiteboxImpl.checkArgumentTypesMatchParameterTypes(WhiteboxImpl.java:2191) 
     at org.powermock.reflect.internal.WhiteboxImpl.findMethodOrThrowException(WhiteboxImpl.java:938) 
     at org.powermock.reflect.internal.WhiteboxImpl.doInvokeMethod(WhiteboxImpl.java:882) 
     at org.powermock.reflect.internal.WhiteboxImpl.invokeMethod(WhiteboxImpl.java:859) 
     at org.powermock.reflect.Whitebox.invokeMethod(Whitebox.java:466) 
     at org.powermock.tests.utils.impl.AbstractTestSuiteChunkerImpl.registerProxyframework(AbstractTestSuiteChunkerImpl.java:154) 
     at org.powermock.tests.utils.impl.AbstractTestSuiteChunkerImpl.getPowerMockTestListenersLoadedByASpecificClassLoader(AbstractTestSuiteChunkerImpl.java:107) 
     at org.powermock.modules.junit4.common.internal.impl.JUnit4TestSuiteChunkerImpl.createDelegatorFromClassloader(JUnit4TestSuiteChunkerImpl.java:143) 
     at org.powermock.modules.junit4.common.internal.impl.JUnit4TestSuiteChunkerImpl.createDelegatorFromClassloader(JUnit4TestSuiteChunkerImpl.java:39) 
     at org.powermock.tests.utils.impl.AbstractTestSuiteChunkerImpl.createTestDelegators(AbstractTestSuiteChunkerImpl.java:217) 
     at org.powermock.modules.junit4.common.internal.impl.JUnit4TestSuiteChunkerImpl.<init>(JUnit4TestSuiteChunkerImpl.java:59) 
     at org.powermock.modules.junit4.common.internal.impl.AbstractCommonPowerMockRunner.<init>(AbstractCommonPowerMockRunner.java:32) 
     at org.powermock.modules.junit4.PowerMockRunner.<init>(PowerMockRunner.java:33) 
     at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method) 
     at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:57) 
     at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45) 
     at java.lang.reflect.Constructor.newInstance(Constructor.java:532) 
     at org.junit.internal.builders.AnnotatedBuilder.buildRunner(AnnotatedBuilder.java:29) 
     at org.junit.internal.builders.AnnotatedBuilder.runnerForClass(AnnotatedBuilder.java:21) 
     at org.junit.runners.model.RunnerBuilder.safeRunnerForClass(RunnerBuilder.java:59) 
     at org.junit.internal.builders.AllDefaultPossibilitiesBuilder.runnerForClass(AllDefaultPossibilitiesBuilder.java:26) 
     at org.junit.runners.model.RunnerBuilder.safeRunnerForClass(RunnerBuilder.java:59) 
     at org.junit.internal.requests.ClassRequest.getRunner(ClassRequest.java:26) 
     at org.apache.maven.surefire.junit4.JUnit4TestSet.execute(JUnit4TestSet.java:51) 
     at org.apache.maven.surefire.junit4.JUnit4Provider.executeTestSet(JUnit4Provider.java:123) 
     at org.apache.maven.surefire.junit4.JUnit4Provider.invoke(JUnit4Provider.java:104) 
     at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) 
     at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57) 
     at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) 
     at java.lang.reflect.Method.invoke(Method.java:616) 
     at org.apache.maven.surefire.util.ReflectionUtils.invokeMethodWithArray(ReflectionUtils.java:164) 
     at org.apache.maven.surefire.booter.ProviderFactory$ProviderProxy.invoke(ProviderFactory.java:110) 
     at org.apache.maven.surefire.booter.SurefireStarter.invokeProvider(SurefireStarter.java:175) 
     at org.apache.maven.surefire.booter.SurefireStarter.runSuitesInProcessWhenForked(SurefireStarter.java:107) 
     at org.apache.maven.surefire.booter.ForkedBooter.main(ForkedBooter.java:68) 
Caused by: java.lang.IllegalArgumentException 
     at org.objectweb.asm.ClassVisitor.<init>(Unknown Source) 
     at net.sf.cglib.core.DebuggingClassWriter.<init>(DebuggingClassWriter.java:49) 
     at net.sf.cglib.core.DefaultGeneratorStrategy.getClassVisitor(DefaultGeneratorStrategy.java:30) 
     at net.sf.cglib.core.DefaultGeneratorStrategy.generate(DefaultGeneratorStrategy.java:24) 
     at net.sf.cglib.core.AbstractClassGenerator.create(AbstractClassGenerator.java:216) 
     at net.sf.cglib.core.KeyFactory$Generator.create(KeyFactory.java:144) 
     at net.sf.cglib.core.KeyFactory.create(KeyFactory.java:116) 
     at net.sf.cglib.core.KeyFactory.create(KeyFactory.java:108) 
     at net.sf.cglib.core.KeyFactory.create(KeyFactory.java:104) 
     at net.sf.cglib.proxy.Enhancer.<clinit>(Enhancer.java:69) 
     ... 38 more 

Answer 1

PowerMock und die neueste cglib scheinen nicht auszukommen mit gegenseitig. Ich kann Ihnen nicht sagen, genau der Grund, aber wenn Sie Herabstufung von 3,0 bis 2.2.2, sollte es funktionieren:

<dependency> 
    <groupId>cglib</groupId> 
    <artifactId>cglib</artifactId> 
    <version>2.2.2</version> 
    <scope>test</scope> 
</dependency>