Nick Jones worte a solution for us, how to test classes in multiple jar files. Example see below, which can be used as a base test class:
public class MyEJB3UnitTestUtility<T> extends BaseSessionBeanFixture<T> { static { MetaDataCache.addClasses("com.pioneer.wipe.common.log.injection.ejb.PortalLoggerInterceptor"); } public EJB3UnitTestUtility(Class<T> classUnderTest) { super(classUnderTest, null); } }