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NoClassDefFoundError

 
Greenhorn
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Hello,
I am a Java Newbie and working on a Java project with silk4J. I am getting NoClassDefFoundError in one of my unit tests. I am unable to understand this error. The test runs without any failures but gives out error.

NoClassDefFoundError : If the compiler doesnt find the class then we get the NoClassDefFoundError...Am I right?

Can someone help me understand and correct the error in my unit test? I am attaching the two java files that i am working with and also the surefire log report. I am unable to find the solution.
I would appreciate the help. Thanks



The log generated by surefire is as follows. :

Tests run: 1, Failures: 0, Errors: 1, Skipped: 0, Time elapsed: 0 sec <<< FAILURE!
at.xxx.uitests.inif.Systemparameter_WFTest Time elapsed: 3.625 sec <<< ERROR!
java.lang.NoClassDefFoundError: Could not initialize class at.xxx.silk.AbstractKTSTest
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:601)
at org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:45)
at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:15)
at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:42)
at org.junit.internal.runners.statements.RunBefores.evaluate(RunBefores.java:27)
at org.junit.runners.ParentRunner.run(ParentRunner.java:300)
at org.apache.maven.surefire.junit4.JUnit4TestSet.execute(JUnit4TestSet.java:53)
at org.apache.maven.surefire.junit4.JUnit4Provider.executeTestSet(JUnit4Provider.java:123)
at org.apache.maven.surefire.junit4.JUnit4Provider.invoke(JUnit4Provider.java:104)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:601)
at org.apache.maven.surefire.util.ReflectionUtils.invokeMethodWithArray(ReflectionUtils.java:164)
at org.apache.maven.surefire.booter.ProviderFactory$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)



 
Rancher
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NoClassDefFoundError : If the compiler doesnt find the class then we get the NoClassDefFoundError...Am I right?


Not quite - that is a runtime error, not a compile time error. So its not the compiler that doesn't find the class, it's the runtime environment.

The first question would be: is that class file where it should be? Meaning, in whatever classpath is used for running the test, and in the correct directory, depending on its package?
 
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