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

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java.lang.NullPointerException:
at weblogic.ejb20.deployer.CompositeMBeanDescriptor.getPersistenceUseIdentifier(CompositeMBeanDescriptor.java:1446)
at weblogic.ejb20.deployer.CMPInfoImpl.(CMPInfoImpl.java:104)
at weblogic.ejb20.deployer.EntityBeanInfoImpl.(EntityBeanInfoImpl.java:135)
at weblogic.ejb20.deployer.BeanInfoImpl.createBeanInfoImpl(BeanInfoImpl.java:349)
at weblogic.ejb20.deployer.MBeanDeploymentInfoImpl.initializeBeanInfos(MBeanDeploymentInfoImpl.java:438)
at weblogic.ejb20.deployer.MBeanDeploymentInfoImpl.(MBeanDeploymentInfoImpl.java:165)
at weblogic.ejb20.ejbc.EJBCompiler.setupEJB(EJBCompiler.java:151)
at weblogic.ejb20.ejbc.EJBCompiler.compileEJB(EJBCompiler.java:332)
at weblogic.ejb20.deployer.EJBDeployer.runEJBC(EJBDeployer.java:489)
at weblogic.ejb20.deployer.EJBDeployer.compileEJB(EJBDeployer.java:819)
at weblogic.ejb20.deployer.EJBDeployer.prepare(EJBDeployer.java:1268)
at weblogic.ejb20.deployer.EJBModule.prepare(EJBModule.java:232)
at weblogic.j2ee.J2EEApplicationContainer.prepareModule(J2EEApplicationContainer.java:1570)
at weblogic.j2ee.J2EEApplicationContainer.prepare(J2EEApplicationContainer.java:737)
at weblogic.j2ee.J2EEApplicationContainer.prepare(J2EEApplicationContainer.java:555)
at weblogic.j2ee.J2EEApplicationContainer.prepare(J2EEApplicationContainer.java:458)
at weblogic.management.deploy.slave.SlaveDeployer.prepareAllStagedApplications(SlaveDeployer.java:490)
at weblogic.management.deploy.slave.SlaveDeployer.initialize(SlaveDeployer.java:253)
at weblogic.management.deploy.DeploymentManagerServerLifeCycleImpl.initialize(DeploymentManagerServerLifeCycleImpl.java:150)
at weblogic.t3.srvr.ServerLifeCycleList.initialize(ServerLifeCycleList.java:54)
at weblogic.t3.srvr.T3Srvr.initialize1(T3Srvr.java:782)
at weblogic.t3.srvr.T3Srvr.initialize(T3Srvr.java:594)
at weblogic.t3.srvr.T3Srvr.run(T3Srvr.java:282)
at weblogic.Server.main(Server.java:32)
at weblogic.ejb20.ejbc.EJBCompiler.setupEJB(EJBCompiler.java:155)
at weblogic.ejb20.ejbc.EJBCompiler.compileEJB(EJBCompiler.java:332)
at weblogic.ejb20.deployer.EJBDeployer.runEJBC(EJBDeployer.java:489)
at weblogic.ejb20.deployer.EJBDeployer.compileEJB(EJBDeployer.java:819)
at weblogic.ejb20.deployer.EJBDeployer.prepare(EJBDeployer.java:1268)
at weblogic.ejb20.deployer.EJBModule.prepare(EJBModule.java:232)
at weblogic.j2ee.J2EEApplicationContainer.prepareModule(J2EEApplicationContainer.java:1570)
at weblogic.j2ee.J2EEApplicationContainer.prepare(J2EEApplicationContainer.java:737)
at weblogic.j2ee.J2EEApplicationContainer.prepare(J2EEApplicationContainer.java:555)
at weblogic.j2ee.J2EEApplicationContainer.prepare(J2EEApplicationContainer.java:458)
at weblogic.management.deploy.slave.SlaveDeployer.prepareAllStagedApplications(SlaveDeployer.java:490)
at weblogic.management.deploy.slave.SlaveDeployer.initialize(SlaveDeployer.java:253)
at weblogic.management.deploy.DeploymentManagerServerLifeCycleImpl.initialize(DeploymentManagerServerLifeCycleImpl.java:150)
at weblogic.t3.srvr.ServerLifeCycleList.initialize(ServerLifeCycleList.java:54)
at weblogic.t3.srvr.T3Srvr.initialize1(T3Srvr.java:782)
at weblogic.t3.srvr.T3Srvr.initialize(T3Srvr.java:594)
at weblogic.t3.srvr.T3Srvr.run(T3Srvr.java:282)
at weblogic.Server.main(Server.java:32)

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