Fix (APAR):  JR29856

Status:  Fix

Release:  6.1.0.1

Operating System:  AIX,HP-UX,i5/OS,Linux,Solaris,Windows

Supersedes Fixes:  

CMVC Defect:  xxxxxx

Byte size of APAR:  14651

Date: 2008-07-28

Abstract:  Upon excessive load, the Business Object Core throws a Nullpointer Exception.

Description/symptom of problem:  
JR29856 resolves the following problem:

ERROR DESCRIPTION:                                              
Intermittent ArrayIndex../NPE Exceptions during Interface       
mapping as shown bellow...                                      
                                                                
ParameterMedi E                                                 
com.ibm.wbiserver.mediation.ifm.ParameterMediationHelper        
doParameterMediation CWLAU0005E: The following error occurred   
with the interface map "IMAP_Source_Target" (source operation   
"mapSourceToTarget" and target operation "processTarget") when  
it invoked the map "SourceBO_TargetBO_Map" in the calling       
context EVENT_DELIVERY.                                         
                                                                
com.ibm.wbiserver.map.exceptions.WBIMapFailureException:        
CWLAS0015E: Submap transformation #3 in Map                     
SourceBO_TargetBO_Map has failed.                               
 at mapperlibrary.SourceBO_TargetBO_Map.submap_call_3(Unknown   
Source)                                                         
.....                                                           
...                                                             
Caused by: java.lang.ArrayIndexOutOfBoundsException             
 at                                                             
org.eclipse.emf.common.util.BasicEList.addUnique(BasicEList.java
:664)                                                           
 at                                                             
org.eclipse.emf.common.util.BasicEList.add(BasicEList.java:645) 
 at                                                             
org.eclipse.emf.common.notify.impl.BasicNotifierImpl$EAdapterLis
t.add(BasicNotifierImpl.java:125)                               
 at                                                             
org.eclipse.emf.ecore.sdo.util.SDOUtil.adaptType(SDOUtil.java:54
9)                                                              

LOCAL FIX:                                                      
fix available                                                   

PROBLEM SUMMARY

USERS AFFECTED:
WebSphere Process Server 6.1.0.1, 6.1.0.2,
and 6.1.2 users.

PROBLEM DESCRIPTION:
Upon excessive load, the Business
Object Core throws a Nullpointer
Exception.

RECOMMENDATION:
None

The Business Object Property is retrieved using EMF methods,
which is not thread safe and in a multithreaded environment
leads to a nullpointer exception.

PROBLEM CONCLUSION:                                             
Applying this interim fix resolves the issue by synchronizing   
the method calls and thus thread safe.                          


Directions to apply fix:  
Download and follow Update Installer installation instructions.  The Update Installer can be downloaded from the following link:
http://www.ibm.com/support/docview.wss?rs=180&uid=swg21205991

1) Copy the pak file to the directory maintenance in the UpdateInstaller directory

2) Shutdown WebSphere Process Server. It is important that you perform a controlled and complete shutdown of the server to ensure that all transactions have completed, before installing the fix.

3) Run the UpdateInstaller and follow the prompts.

4) Restart WebSphere Process Server.





Directions to remove fix:  
NOTE:  FIXES MUST BE REMOVED IN THE REVERSE ORDER IN WHICH THEY WERE APPLIED.  DO NOT REMOVE A FIX UNLESS  ALL FIXES APPLIED AFTER IT HAVE FIRST BEEN REMOVED.  YOU MAY REAPPLY ANY REMOVED FIX.

Example:  If your system has fix1, fix2, and fix3 applied in that order and fix2 is to be removed, fix3 must be removed first, then fix2 may be removed

1) Shutdown WebSphere Process Server. It is important that you perform a controlled and complete shutdown of the server to ensure that all transactions have completed, before installing the fix.

2) Follow the Fix instructions that are packaged with the Fix Installer on how to uninstall and reinstall the Fix.

3) Restart WebSphere Process Server.





Directions to re-apply fix:  
1) Shutdown WebSphere. It is important that you perform a controlled and complete shutdown of the server to ensure that all transactions have completed, before installing the fix.

2) Run the UpdateInstaller and follow the instructions. The Update Installer can be downloaded from the following link:
http://www.ibm.com/support/docview.wss?rs=180&uid=swg21205991

3) Restart WebSphere Process Server.





Additional Information:  
Interim fix is also available for WebSphere Process Server Version V6.1.2.0