PQ58946: JAVA.LANG.NULLPOINTEREXCEPTION IN SERVER REGION WHEN RUNNING STATELESS SESSION BEANS.

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APAR status
Closed as program error.

Error description
When running Stateless Session Beans, in application servers
which have the 'Isolation Policy' set to 'Multiple Transactions
per Server', after running for some time, the server Region
receives a 'java.lang.NullPointerException'.
The Java Stack Trace looks like:
java.lang.NullPointerException
com.ibm.ejs.container.EJSContainer.postInvoke(EJSContainer.java(
 Compiled Code))
com.SomeCustomerAppCode
com.SomeOtherCustomerAppCode
com.ibm.ws390.rmi.corba.ORBEJSBridge.invoke(ORBEJSBridge.java:47
  2)
.
Local fix Problem summary
****************************************************************
* USERS AFFECTED: All users of WebSphere Application Server    *
*                 V4.0.1 for z/OS and OS/390                   *
****************************************************************
* PROBLEM DESCRIPTION: java.lang.NullPointerException in a     *
*                      multithread server with SMF recording   *
*                      active.                                 *
****************************************************************
* RECOMMENDATION:                                              *
****************************************************************
This problem occurs in multithreaded servers with SMF recording
active. A stack trace will be seen in the Server Region job log
that looks like the following:
 java.lang.NullPointerException
 .at
 com.ibm.ejs.container.EJSContainer.postInvoke(EJSContainer.java
 (Compiled Code))
 .at
 com.tsystems.aimsamp.EJSRemoteStatelessAccountSession.ping
 (EJSRemoteStatelessAccountSession.java:108)
 .at
 com.tsystems.aimsamp._EJSRemoteStatelessAccountSession_Tie.
 _invoke(_ EJSRemoteStatelessAccountSession_Tie.java:91)
 .at
 com.ibm.ws390.rmi.corba.ORBEJSBridge.invoke(ORBEJSBridge.java:
 472)
Problem conclusion
The product was modified to change how an array was managed. The
array was change to be managed as one array per thread instead
of one array for all threads. Part ThreadContextImpl.java was
modified.

APAR PQ58946 is associated with SERVICE LEVEL W401043 of
WebSphere Application Server V4.0.1 for z/OS and OS/390.
Temporary fix Comments
APAR information
APAR number PQ58946
Reported component name WASKBASE
Reported component ID 5655A9801
Reported release 401
Status CLOSED PER
PE NoPE
HIPER NoHIPER
Submitted date 2002-03-11
Closed date 2002-04-11
Last modified date 2002-05-02

APAR is sysrouted FROM one or more of the following:

APAR is sysrouted TO one or more of the following:
UQ65081

Modules/Macros
BBOUBINF BBOZ0812 BBOZ0813      

Fix information
Fixed component name WASKBASE
Fixed component ID 5655A9801

Applicable component levels
R401 PSY UQ65081    UP02/04/25 P F204

  Fix is available
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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: 401
Software edition:
Reference #: PQ58946
IBM Group: Software Group
Modified date: May 2, 2002