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

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java.lang.NullPointerException:
at test.cmpBean_1401625686_ConcreteImpl.jdoLookupPersistenceManagerFactory(cmpBean_1401625686_ConcreteImpl.java:561)
at test.cmpBean_1401625686_ConcreteImpl.setEntityContext(cmpBean_1401625686_ConcreteImpl.java:591)
at com.sun.ejb.containers.EntityContainer$EntityContextFactory.create(EntityContainer.java:2599)
at com.sun.ejb.containers.util.pool.NonBlockingPool.getObject(NonBlockingPool.java:176)
at com.sun.ejb.containers.util.pool.NonBlockingPool.getObject(NonBlockingPool.java:133)
at com.sun.ejb.containers.EntityContainer.getPooledEJB(EntityContainer.java:1896)
at com.sun.ejb.containers.EntityContainer.getContext(EntityContainer.java:560)
at test.cmpBean_1401625686_ConcreteImpl_RemoteHomeImpl.create(cmpBean_1401625686_ConcreteImpl_RemoteHomeImpl.java:25)
at test._cmpHome_Stub.create(Unknown Source)
at undefined.test.processRequest(test.java:59)
at undefined.test.doGet(test.java:87)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:740)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:853)
at org.apache.catalina.core.StandardWrapperValve.invokeServletService(StandardWrapperValve.java:720)
at org.apache.catalina.core.StandardWrapperValve.access$000(StandardWrapperValve.java:118)
at org.apache.catalina.core.StandardWrapperValve$1.run(StandardWrapperValve.java:278)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:274)
at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:505)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:212)
at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:505)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:203)
at com.iplanet.ias.web.connector.nsapi.NSAPIProcessor.process(NSAPIProcessor.java:157)
at com.iplanet.ias.web.WebContainer.service(WebContainer.java:598)

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