PK24760: NULLPOINTEREXCEPTION DURING SERIALIZATION.

6.1.0.2: WebSphere Application Server V6.1.0 Fix Pack 2 for Solaris
6.1.0.2: WebSphere Application Server V6.1.0 Fix Pack 2 for Linux
6.1.0.2: WebSphere Application Server V6.1.0 Fix Pack 2 for Windows
6.1.0.2: WebSphere Application Server V6.1.0 Fix Pack 2 for AIX
6.1.0.2: WebSphere Application Server V6.1.0 Fix Pack 2 for HP-UX
6.1.0.2: WebSphere Application Server V6.1.0 Fix Pack 2 for i5/OS

APAR status

• Closed as program error.

Error description

• This APAR is to address session component of the problem.
  .
  Problem is session manager and DRS are not properly handling
  when an error ocurrs during serialization and session manager
  should not invoke DRS when serialization fails.
  

Local fix

• N/A
  

Problem summary

• ****************************************************************
  * USERS AFFECTED: WebSphere Application Server version 6       *
  *                 application developers who use memory to     *
  *                 memory session persistence and also          *
  *                 (mistakenly) add atributes which can not     *
  *                 be serialized at runtime.                    *
  *                                                              *
  ****************************************************************
  * PROBLEM DESCRIPTION: Exception due to non-serializable       *
  *                      attributes in memory to memory session  *
  *                      persistence.                            *
  ****************************************************************
  * RECOMMENDATION:                                              *
  ****************************************************************
  In memory to memory session persistence if atributes which can
  not be serialized at runtime are present then they cause
  non-serailizable exceptions at multiple places in Application
  Server code.
  

Problem conclusion

• Code changes have been made.  Exceptions occurring during
  memory to memory replication of non-serializable attributes
  is now handled gracefully by detecting at their first
  occurrence, and then not abortring their replication,
  and also logging appropriate messages into the stdout.
  
  The fix for this APAR is currently targeted for inclusion
  in fixpack 6.0.2.13 and 6.1.0.2.
  Please refer to the recommended updates page for delivery
  information:
  http://www.ibm.com/support/docview.wss?rs=180&uid=swg27004980
  

Temporary fix

Comments

APAR Information

• APAR is sysrouted FROM one or more of the following:

• APAR is sysrouted TO one or more of the following:

Modules/Macros

• SESSNMGR
  

Fix information

• Fixed component name

  WEBS APP SERV N

• Fixed component ID

  5724H8800

Applicable component levels

• R60A PSY

     UP

• R60H PSY

     UP

• R60I PSY

     UP

• R60P PSY

     UP

• R60S PSY

     UP

• R60W PSY

     UP

• R60Z PSY

     UP

• R61A PSY

     UP

• R61H PSY

     UP

• R61I PSY

     UP

• R61P PSY

     UP

• R61S PSY

     UP

• R61W PSY

     UP

• R61Z PSY

     UP