PK07272: FREQUENT NULLPOINTEREXCEPTIONS DURING SESSION MANAGER OPERATIONSAT DRSHTTPSESSCACHE.GETENTRY(). | |||||||||||||||||||||||||||||||||||||||||||
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![]() APAR status Closed as program error. Error description Customer is seeing frequent NullPointerExceptions that appear to be during session invalidation. The stacktrace is: . java.lang.NullPointerException at com.ibm.ws.webcontainer.httpsession.DRSHttpSessCache.getEntry (DRSHttpSessCache.java:567) at com.ibm.ws.drs.DRSJMS.handleReceivedMessage(DRSJMS.java:1322) at com.ibm.ws.drs.DRSReceiveMessageTask.run(DRSReceiveMessageTas at com.ibm.ws.util.ThreadPool$Worker.run(ThreadPool.java:672) . This occurs with the latest DRS maintenance applied. This APAR is being taken to roll up distributed APAR PK03077 which should resolve this issue.Local fix Problem summary **************************************************************** * USERS AFFECTED: All users of WebSphere Application Server * * V5.0 for z/OS * **************************************************************** * PROBLEM DESCRIPTION: The following NullPointerException is * * occurring during session invalidation * * in Memory-To-Memory mode: * * java.lang.NullPointerException * * at com.ibm.ws.webcontainer.httpsession * * .DRSHttpSessCache.getEntry * * (DRSHttpSessCache.java:567) * * at com.ibm.ws.drs.DRSJMS. * * handleReceivedMessage(DRSJMS.java: * * 1322) * * at com.ibm.ws.drs.DRSReceiveMessageTas * * k.run(DRSReceiveMessageTask) * * at com.ibm.ws.util.ThreadPool$Worker. * * run(ThreadPool.java:672) * **************************************************************** * RECOMMENDATION: * **************************************************************** The Session Manager is not performing a non-null check before invoking an operation on the object which caused the NullPointerException.Problem conclusion The code was modified to perform the non-null check during session invalidation. APAR PK07272 is associated with SERVICE LEVEL W502031 of WebSphere Application Server V5.0 for z/OS.Temporary fix Comments
APAR is sysrouted FROM one or more of the following: PK05076 APAR is sysrouted TO one or more of the following: Modules/Macros
Publications Referenced
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Document Information |
Current web document: swg1PK07272.html
Product categories: Software > Application Servers >
Distributed Application & Web Servers > WebSphere Application
Server for z/OS
Operating system(s):
Software version: 500
Software edition:
Reference #: PK07272
IBM Group: Software Group
Modified date: Jul 1, 2005
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