What you’re seeing is some hidden bytecode being generated due to an enumeration. To get rid of this issue, add a call to the values() and valueOf() methods in the enum, as mentioned earlier by Carl Manaster and Peter Lawrey.
I had same problem using maven cobertura plugin. All tests failed when run from cobertura:report. But all tests succeeded when run directly from surefire plugin. As some of you already said the problem is that coberture byte code instrumentation of is not compatible with JDK7. You can see here http://vikashazrati.wordpress.com/2011/10/09/quicktip-verifyerror-with-jdk-7/ that the exception is related … Read more
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