Eclipse helios Classpath Dependency Validater Messages

While using eclipse helios, when you come across Classpath Dependency Validater Messages such as Description Resource Path Location Type Classpath entry /Test/libs/xxx.jar will not be exported or published. Runtime ClassNotFoundExceptions may result. ChatTest P/Test Classpath Dependency Validator Message

Then you can overcome this by doing following operation
 Properties --> Deployment Assembly add --> Java Build path Enteries --> xxx.jar--> finish