NoClassDefFound Could not initialize class org.mockito.internal.creation.jmock.ClassImposterizer$3

[AMANPREET.BANSAL]

I am trying to configure the url extension and getting the below errors while running the mvn clean install.

I have installed the configured the apache-maven and planning to use windows machine-agent.

[ERROR] com.appdynamics.extensions.urlmonitor.UrlMonitorTest.urlMonitorExceptionOccurredTest  Time elapsed: 0.002 s  <<< ERROR!
java.lang.NoClassDefFoundError: Could not initialize class org.mockito.internal.creation.jmock.ClassImposterizer$3
        at org.mockito.internal.creation.jmock.ClassImposterizer.createProxyClass(ClassImposterizer.java:68)
        at org.mockito.internal.creation.jmock.ClassImposterizer.imposterise(ClassImposterizer.java:50)
        at org.powermock.api.mockito.internal.mockcreation.MockCreator.createMethodInvocationControl(MockCreator.java:100)
        at org.powermock.api.mockito.internal.mockcreation.MockCreator.mock(MockCreator.java:58)
        at org.powermock.api.mockito.internal.expectation.DefaultConstructorExpectationSetup.createNewSubsituteMock(DefaultConstructorExpectationSetup.java:80)
        at org.powermock.api.mockito.internal.expectation.DefaultConstructorExpectationSetup.withArguments(DefaultConstructorExpectationSetup.java:48)
        at com.appdynamics.extensions.urlmonitor.UrlMonitorTest.init(UrlMonitorTest.java:50)
        at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:77)
        at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
        at java.base/java.lang.reflect.Method.invoke(Method.java:568)
        at org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:47)
        at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:12)
        at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:44)
        at org.junit.internal.runners.statements.RunBefores.evaluate(RunBefores.java:24)
        at org.junit.runners.ParentRunner.runLeaf(ParentRunner.java:271)
        at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:70)
        at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:50)
        at org.junit.runners.ParentRunner$3.run(ParentRunner.java:238)
        at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:63)
        at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:236)
        at org.junit.runners.ParentRunner.access$000(ParentRunner.java:53)
        at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:229)
        at org.junit.runners.ParentRunner.run(ParentRunner.java:309)
        at org.apache.maven.surefire.junit4.JUnit4Provider.execute(JUnit4Provider.java:316)
        at org.apache.maven.surefire.junit4.JUnit4Provider.executeWithRerun(JUnit4Provider.java:240)
        at org.apache.maven.surefire.junit4.JUnit4Provider.executeTestSet(JUnit4Provider.java:214)
        at org.apache.maven.surefire.junit4.JUnit4Provider.invoke(JUnit4Provider.java:155)
        at org.apache.maven.surefire.booter.ForkedBooter.runSuitesInProcess(ForkedBooter.java:385)
        at org.apache.maven.surefire.booter.ForkedBooter.execute(ForkedBooter.java:162)
        at org.apache.maven.surefire.booter.ForkedBooter.run(ForkedBooter.java:507)
        at org.apache.maven.surefire.booter.ForkedBooter.main(ForkedBooter.java:495)
Caused by: java.lang.ExceptionInInitializerError: Exception java.lang.ExceptionInInitializerError [in thread "main"]
        at org.mockito.cglib.core.KeyFactory$Generator.generateClass(KeyFactory.java:167)
        at org.mockito.cglib.core.DefaultGeneratorStrategy.generate(DefaultGeneratorStrategy.java:25)
        at org.mockito.cglib.core.AbstractClassGenerator.create(AbstractClassGenerator.java:217)
        at org.mockito.cglib.core.KeyFactory$Generator.create(KeyFactory.java:145)
        at org.mockito.cglib.core.KeyFactory.create(KeyFactory.java:117)
        at org.mockito.cglib.core.KeyFactory.create(KeyFactory.java:109)
        at org.mockito.cglib.core.KeyFactory.create(KeyFactory.java:105)
        at org.mockito.cglib.proxy.Enhancer.<clinit>(Enhancer.java:70)
        at org.mockito.internal.creation.jmock.ClassImposterizer.createProxyClass(ClassImposterizer.java:68)
        at org.mockito.internal.creation.jmock.ClassImposterizer.imposterise(ClassImposterizer.java:50)
        at org.mockito.internal.util.MockUtil.createMock(MockUtil.java:54)
        at org.mockito.internal.MockitoCore.mock(MockitoCore.java:45)
        at org.mockito.Mockito.mock(Mockito.java:921)
        at org.mockito.Mockito.mock(Mockito.java:816)
        at com.appdynamics.extensions.urlmonitor.RequestConfigTest.init(RequestConfigTest.java:50)
        ... 25 more

[Ryan.Paredez]

Hi @AMANPREET.BANSAL,

Thanks for asking your question on the Community. I see you also created a Support ticket. Can you please share the resolution back as a reply to this thread? Knowledge sharing is a key aspect of this community.

[AMANPREET.BANSAL · Accepted solution]

The issue is resolved by running  "mvn clean install -Dmaven.test.skip"

Java8 for Apache Maven was already configured successfully. It is pre-requisite. Good reference to configure the same is : https://phoenixnap.com/kb/install-maven-windows

Problem statement: 

• While running mvn clean install for url-monitoring extension, receiving an error below:

[ERROR] com.appdynamics.extensions.urlmonitor.UrlMonitorTest.urlMonitorExceptionOccurredTest Time elapsed: 0.002 s <<< ERROR!
java.lang.NoClassDefFoundError: Could not initialize class org.mockito.internal.creation.jmock.ClassImposterizer$3

 
Next steps: 

• It seems the test is failing. Could you please execute mvn clean install -Dmaven.test.skip and confirm if you can build the extension?
• Please also confirm if you configured Java8 for Apache Maven.

[Ryan.Paredez]

Hi @AMANPREET.BANSAL,

Thank you for sharing the solution!