PowerMockRunner önemsiz testi çalıştırırken ExceptionInInitializerError neden

Question

Powermock test runner'ı kullanarak çok basit bir test sınıfı yapılamıyorum. Bir ExceptionInInitializerError neden olur. Bu, sınıf yolundaki bağımlılıklar ile ilgili bir sorun gibi görünüyor, ancak bağımlılık sürümlerinin birkaç varyantını denedim, ancak hepsi aynı hatayı veriyor. Powermock test yolunu kullanırken bu basit testi nasıl geçebilirim?

Test kodu:

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); 
    } 
} 

Proje POM:

<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 çalıştırmak aşağıdaki çıktıyı neden olur:

------------------------------------------------------------------------------- 
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 ve en yeni CGLIB anlaşamayan gibi görünüyor herbiri. Ben tam nedenini söyleyemem, ama eğer düşürme 3.0 ila 2.2.2, çalışmalıdır:

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