Name: PK32573
=============
 
Summary:
   Putting an unmodifiable map of http request parameters in a Servlet Filter produces an UnsupportedOperationException
 
Problem Description:
   Putting an unmodifiable map of http request parameters in a Servlet Filter produces an UnsupportedOperationException - Auto-namespacing request parameters in IBM portlet actions writes to the parameter map in the underlying servlet request. This leads to the exception:
   java.lang.UnsupportedOperationException 
   	at java.util.Collections$UnmodifiableMap.put(Collections.java:1283) 
   	at com.ibm.wps.state.information.legacy.DynamicInformationProviderImpl.modifyParameterKey(DynamicInformationProviderImpl.java:698) 
   
 
Problem Solution:
   If necessary, clone the request parameter map and write to the cloned map
 
Failing Module(s):
   Engine: Tags & Commands
 
Affected Users:
   All users
 
Version Information:
    Portal Version(s): 6.0.0.0
     Pre-Requisite(s): 
      Co-Requisite(s): ---
 
Platform Specific:
   This fix applies to all platforms.
 
Installation:
   NOTE:  YOU MUST FIRST DOWNLOAD THE UPDATE INSTALLER TOOL IN ORDER TO INSTALL A FIX.
          The Portal Update Installer can be downloaded from the following link:
          http://www.ibm.com/software/genservers/portal/support
 
   1. Create temporary "fix" directory to store the jar file.
   2. Copy jar file to this directory.
   3. Shutdown WebSphere Portal.
   4. Follow the fix installation instructions that are packaged with
      the Portal Update Installer on how to install the fix.
   5. Restart WebSphere Portal.
   6. The temporary directory may be removed.
 
Un-Installation:
   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.
 
   1. Shutdown WebSphere Portal.
   2. Follow the instructions that are packaged with the
      Portal Update Installer on how to uninstall the fix.
   3. Restart WebSphere Portal.