java.lang.NullPointerException: This exception has no message.

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java.lang.NullPointerException	at java.util.zip.ZipFile.getInputStream(ZipFile.java:174)	at java.util.jar.JarFile.getInputStream(JarFile.java:307)	at com.sun.enterprise.deployment.ApplicationArchivist.saveInClassLoadableFormat(ApplicationArchivist.java:1796)	at com.sun.enterprise.tools.deployment.backend.JarInstallerImpl.deployApplication(JarInstallerImpl.java:150)	at org.omg.stub.com.sun.enterprise.tools.deployment.backend._JarInstallerImpl_Tie._invoke(Unknown Source)	at com.sun.corba.ee.internal.corba.ServerDelegate.dispatch(ServerDelegate.java:355)	at com.sun.corba.ee.internal.iiop.ORB.process(ORB.java:255)	at com.sun.corba.ee.internal.iiop.RequestProcessor.process(RequestProcessor.java:84)	at com.sun.corba.ee.internal.orbutil.ThreadPool$PooledThread.run(ThreadPool.java:99)