Fix (APAR):                IZ97246

Status:                    Fix

Product:                   WBI

Release:                   6.1.2.3

Operating System:          All operating systems

Supersedes Fixes:          

Pre-requisite Fixes:       IZ82791

Exclusive-requisite Fixes: 

CMVC Defect:               IZ97246

Byte size of APAR:         3871106

Date:                      2011-03-30

Abstract:                  Improves inter-transaction cache handling introduced with IZ82791

Description/symptom of problem:
A reference to the data object in the inter-transaction cache is passed to the client making the local EJB calls. 
Later use of the data object may occur by the client code and by the BPC container, which leads to wrong or null data, 
which in turn may lead to nullpointer errors.

Please note the availability of the following prerequisite APAR:  
NEW PROPERTY AVAILABLE THAT OFFERS POSSIBILTY TO RETRIEVE MESSAGES BY COPY WHEN USING WPS EJB API.
IZ82791 (on top of V612 SP3) http://www-01.ibm.com/support/docview.wss?uid=swg1IZ82791
IZ82792 (on top of V620 SP3) http://www-01.ibm.com/support/docview.wss?uid=swg1IZ82792
IZ82793 (on top of V700 SP3) http://www-01.ibm.com/support/docview.wss?uid=swg1IZ82793

Note : 
If the custom property interTransactionCache.integrityCheck is set to 'true' a message like the following
may appear :
CWWBB0699W: The content of the internal database cache for entity 'com.ibm.bpe.database.TaskContext' with key '
TKIID = _TKI:a01b012f.6e1f5e3b.708a67f6.1eca0019}' is not valid anymore.

Such a message for for the entity "com.ibm.bpe.database.TaskContext" can be safely ignored.

Directions to apply fix:

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

2) 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.

3) Follow the Fix installation instructions that are packaged with the Fix Installer on how to install the Fix.

4) Restart WebSphere


Directions to remove fix:
NOTE:  FIXES MUST BE REMOVED IN THE ORDER 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. 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

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

3) Restart WebSphere


Additional Information: