PQ74375: NULLPOINTER EXCEPTION IS THROWN WHEN USING PARALLEL PORTLET RENDERING.

 Fixes are available

PQ74375, 4.0.3, 4.0.4, 4.0.5, 4.0.6 : NullPointerException from Session Manager
4.0.7: WebSphere Application Server Version 4.0 Fix Pack 7



APAR status
Closed as program error.

Error description
When using a portlet application consisting of multiple portlets
which communicate to a portlet service, with parrallel portlet
rendering enabled, the following error occurs:
java.lang.NullPointerException at com.ibm.servlet.engine.srt.
SRTSessionAPISupport.getSession()
Local fix
Disable parallel portlet rendering.
Problem summary
****************************************************************
* USERS AFFECTED: WebSphere Application Server developers of   *
*                 WebSphere Portal Server using                *
*                 Parallel Portlet Rendering feature.          *
****************************************************************
* PROBLEM DESCRIPTION: NullPointerException is thrown when     *
*                      using Parallel Portlet Rendering.       *
****************************************************************
* RECOMMENDATION:                                              *
****************************************************************
When using a portlet application consisting of multiple
portlets which communicate to a portlet service, with
Parallel Portlet Rendering enabled, the following
error occurs:
java.lang.NullPointerException at
com.ibm.servlet.engine.srt.SRTSessionAPISupport.getSession()
Problem conclusion
To prevent the NullPointerException, synchronize the
session context access in getSession() for multiple threads
that handle concurrent http requests.
Temporary fix
ZE Fix Error 
PQ82069 04/05/25
Comments
APAR information
APAR number PQ74375
Reported component name WEBSPHERE AE AI
Reported component ID 5630A2200
Reported release 400
Status CLOSED PER
PE NoPE
HIPER NoHIPER
Submitted date 2003-05-20
Closed date 2003-06-09
Last modified date 2004-05-25

APAR is sysrouted FROM one or more of the following:

APAR is sysrouted TO one or more of the following:

Modules/Macros
Session          

SRLS

Fix information

Applicable component levels
R400 PSY    UP


Document Information


Product categories: Software > Application Servers > Distributed Application & Web Servers > WebSphere Application Server > General
Operating system(s):
Software version: 400
Software edition:
Reference #: PQ74375
IBM Group: Software Group
Modified date: May 25, 2004