PQ51717: JAVA.LANG.NULLPOINTEREXCEPTION IN WAS FOR Z/OS APPLICATION SERVER REGION WHEN MULTIPLE CLIENT REQUESTS ARE PROCESSED | |||||||||||||||||||||||||||||||||||||||||
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![]() APAR status Closed as program error. Error description java.lang.NullPointerException occurred in com.ibm.ws390.tx. TransactionSynchronizer.beforeCompletion (or afterCompletion). This problem happens when multiple client requests are processed in application Server Region.Local fix Problem summary **************************************************************** * USERS AFFECTED: All users of WebSphere Application Server * * V4.0 for z/OS and OS/390. * **************************************************************** * PROBLEM DESCRIPTION: Exceptions IllegalStateException and * * NullPointerException may be encountered * * in server regions configured with * * multiple threads. * **************************************************************** * RECOMMENDATION: * **************************************************************** Subordinate nodes in a distributed transaction may encounter exceptions IllegalStateException and NullPointerException while driving synchronization objects in the server region. This problem only occurs in multi-threaded server regions and is caused when the wrong JVM representation of the transaction is driven for before/after Completion. The problem is the result of two representations of the transaction getting out of sync when LE heap storage is reused.Problem conclusion The reported problem was fixed by ensuring that the JVM representation of the transaction remains in sync with the runtime representation. APAR PQ51717 is associated with SERVICE LEVEL W400029 of WebSphere Application Server V4.0 for z/OS and OS/390.Temporary fix Comments
APAR is sysrouted FROM one or more of the following: APAR is sysrouted TO one or more of the following: Modules/Macros
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Document Information |
Product categories: Software > Application Servers >
Distributed Application & Web Servers > WebSphere Application
Server for z/OS
Operating system(s):
Software version: 400
Software edition:
Reference #: PQ51717
IBM Group: Software Group
Modified date: Oct 2, 2001
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