Fix (APAR):  PK43575

Status:  Test

Release:  6.0.2.21,6.0.2.19,6.0.2.17

Operating System:  AIX

Supersedes Fixes:  

CMVC Defect:  PK43575

Byte size of APAR:  18873

Date: 2007-07-27

Abstract:  Non-serializable data is put in the session which will lead to session replication failure.

Description/symptom of problem:  
PK43575 resolves the following problem:

ERROR DESCRIPTION:                                              
One of the root class for JSF implementation do not implement   
java.io.Serializable interface. This cause exceptions when      
replicating the JSF state in session. Even though there are     
options to supress hte message by not persistance data, there is
a drawback od dataloss on failover.                             

LOCAL FIX:                                                      
None                                                            

PROBLEM SUMMARY

USERS AFFECTED:
IBM WebSphere Application Server version
6.0.2 and 6.1 users of JavaServer Faces
(JSF) with the
com.sun.faces.enableHighAvailability
context paramater in the web.xml set to
true.

PROBLEM DESCRIPTION:
Non-serializable data is put in the
session which will lead to session
replication failure.

RECOMMENDATION:
None

Application Server's JSF implementation puts a
non-serializable class called SerializedView in the session
when the com.sun.faces.enableHighAvailability context
parameter is set to true.  This causes failures when the
session is then replicated between servers or the contents are
otherwise serialized.

PROBLEM CONCLUSION:                                             
The non-serializable class is no longer placed in the session,  
instead an object array is used.                                
The fix for this APAR is currently targeted for inclusion in    
fixpack 6.0.2.23 and 6.1.0.13. Please refer to the Recommended  
Updates page for delivery information:                          
http://www.ibm.com/support/docview.wss?rs=180&uid=swg27004980   

Directions to apply fix:  NOTE: Choose the:
1) Release the fix applies to
2) The Editions that apply
3) Delete the Editions & Methods that do not apply and this Note

Fix applies to Editions:
Release 6.0
X_ Application Server (Express or BASE)
X_ Network Deployment (ND)
__ WebSphere Business Integration Server Foundation (WBISF)
__ Edge Components
__ Developer
__ Extended Deployment (XD)

Install Fix to:
Method:
__ Application Server Nodes
__ Deployment Manager Nodes
__ Both

NOTE:
The user must:
* Have Administrative rights in Windows, or be the Actual Root User in a UNIX environments.
* Logged in with the same authority level when unpacking a fix, fix pack or refresh pack.
* Be at V6.0.2.2 or newer of the Update Installer. This can be checked by reviewing the level of the Update Installer in file <was_root>/updateinstaller/version.txt.

The Update Installer can be downloaded from the following link:
http://www.ibm.com/support/docview.wss?rs=180&uid=swg21205991

For detailed instructions to Extract the Update Installer see the following Technote:
http://www-1.ibm.com/support/docview.wss?rs=180&uid=swg21205400

1) Copy PKxxxxx.pak file directly to the maintenance directory

2) Shutdown WebSphere
Manually execute setupCmdLine.bat in Windows or . ./setupCmdLine.sh in Unix from the WebSphere instance that maintenance is being applied to.

3) Launch Update Installer

4) Enter the installation location of the WebSphere product you want to update.

5) Select the "Install maintenance package" operation.

6) Enter the file name of the maintenance package to install (PKxxxxx.pak file which was copied in the maintenance directory).

7) Install the maintenance package.

8) Restart WebSphere

Directions to remove fix:  NOTE:
* The user must have Administrative rights in Windows, or be the Actual Root User in a UNIX environments.
* 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, fix2 removed, and fix3 re-applied.

1) Shutdown WebSphere
Manually execute setupCmdLine.bat in Windows or . ./setupCmdLine.sh in Unix from the WebSphere instance that uninstall is being run against.

2) Start Update Installer

3) Enter the installation location of the WebSphere product you want to remove the fix.

4) Select  "Uninstall maintenance package" operation.

5) Enter the file name of the maintenance package to uninstall (PKxxxxx.pak).

6) UnInstall maintenance package.

7) Restart WebSphere

Directions to re-apply fix:  1) Shutdown WebSphere.

2) Follow the Fix instructions to apply the fix.

3) Restart WebSphere.

Additional Information: