Fix (APAR):  PI27275

Status:  Fix

Release:  8.5.5.3

Operating System:  AIX,HP-UX,IBM i,Inspur K-UX,Linux,Mac OS,Solaris,Windows,z/OS

Supersedes Fixes:  

CMVC Defect:  xxxxxx

Byte size of APAR:  262477

Date: 2014-10-20

Abstract:  issues with portlet fragment caching

Description/symptom of problem:  
PI27275 resolves the following problem:

ERROR DESCRIPTION:                                              
If portlet fragment caching is enabled, the portlet container   
may throw a NullPointerException when rewriting a portlet URL.  
If a portlet supports two phase rendering and portlet fragment  
caching is enabled, the portlet container may commit the        
response too early in the render headers phase.                 

LOCAL FIX:                                                      

PROBLEM SUMMARY

USERS AFFECTED:
 All users of IBM WebSphere Application
Server

PROBLEM DESCRIPTION:
Multiple issues if a portlet's markup
is cached by the portlet container's
portlet fragment caching
functionality.

RECOMMENDATION:
None

If portlet fragment caching is enabled, the portlet container
may throw a NullPointerException when rewriting a portlet URL.
If a portlet supports two phase rendering and portlet fragment
caching is enabled, the portlet container may commit the
response too early in the render headers phase.

PROBLEM CONCLUSION:                                             
The portlet container code is changed to correctly handle URL   
parameters and to commit the response only if required when     
rewriting cached markup.                                        
                                                                
The fix for this APAR is currently targeted for inclusion in    
fix packs 8.0.0.10 and 8.5.5.4.  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: Mark with an X the:
1) Release the fix applies to
2) The Editions that apply
3) And then DELETE THIS NOTE

Fix applies to Editions:
Release 8.0
__ Application Server (Express or BASE)
__ Network Deployment (ND)
__ Edge Components
__ Developer

Install Fix to all WebSphere installations unless special instructions are included below.

Special Instructions: None

NOTE:
The user must:
* Logged in with the same authority level when unpacking a fix, fix pack or refresh pack.
* Be at V1.4.3 or newer of the Installation Manager. Certain iFixes may require a newer version of the Installation Manager and the Installation Manager will inform you during the installation process if a newer version is required.

The IBM Information Center can provide details, if needed, on the use of the Installation Manager to apply the iFixes.
http://publib.boulder.ibm.com/infocenter/install/v1r4/index.jsp.  Shutdown WebSphere Application Server before applying the iFixes.  Restart WebSphere Application Server after applying the iFixes.

Directions to remove fix:  

The IBM Information Center can provide details, if needed, on the use of the Installation Manager to remove the iFixes.
http://publib.boulder.ibm.com/infocenter/install/v1r4/index.jsp.  Shutdown WebSphere Application Server before removing the iFixes.  Restart WebSphere Application Server after removing the iFixes.

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

2) Follow the Fix instructions to apply the fix.

3) Restart WebSphere Application Server.



Additional Information: