IBM Support

PI78540: WSSESSIONMGRCOMPONENTIMPL THROW NULLPOINTEREXCEPTIONS

Fixes are available

9.0.0.4: WebSphere Application Server traditional V9.0 Fix Pack 4
8.5.5.12: WebSphere Application Server V8.5.5 Fix Pack 12
9.0.0.5: WebSphere Application Server traditional V9.0 Fix Pack 5
9.0.0.6: WebSphere Application Server traditional V9.0 Fix Pack 6
8.5.5.13: WebSphere Application Server V8.5.5 Fix Pack 13
9.0.0.7: WebSphere Application Server traditional V9.0 Fix Pack 7
9.0.0.8: WebSphere Application Server traditional V9.0 Fix Pack 8
8.5.5.14: WebSphere Application Server V8.5.5 Fix Pack 14
9.0.0.9: WebSphere Application Server traditional V9.0 Fix Pack 9
9.0.0.10: WebSphere Application Server traditional V9.0 Fix Pack 10
8.5.5.15: WebSphere Application Server V8.5.5 Fix Pack 15
9.0.0.11: WebSphere Application Server traditional V9.0 Fix Pack 11
9.0.5.0: WebSphere Application Server traditional Version 9.0.5 Refresh Pack
9.0.5.1: WebSphere Application Server traditional Version 9.0.5 Fix Pack 1
9.0.5.2: WebSphere Application Server traditional Version 9.0.5 Fix Pack 2
8.5.5.17: WebSphere Application Server V8.5.5 Fix Pack 17
9.0.5.3: WebSphere Application Server traditional Version 9.0.5 Fix Pack 3
9.0.5.4: WebSphere Application Server traditional Version 9.0.5 Fix Pack 4
9.0.5.5: WebSphere Application Server traditional Version 9.0.5 Fix Pack 5
WebSphere Application Server traditional 9.0.5.6
9.0.5.7: WebSphere Application Server traditional Version 9.0.5 Fix Pack 7
9.0.5.8: WebSphere Application Server traditional Version 9.0.5.8
8.5.5.20: WebSphere Application Server V8.5.5.20
8.5.5.18: WebSphere Application Server V8.5.5 Fix Pack 18
8.5.5.19: WebSphere Application Server V8.5.5 Fix Pack 19
9.0.5.9: WebSphere Application Server traditional Version 9.0.5.9
9.0.5.10: WebSphere Application Server traditional Version 9.0.5.10
8.5.5.16: WebSphere Application Server V8.5.5 Fix Pack 16
8.5.5.21: WebSphere Application Server V8.5.5.21
9.0.5.11: WebSphere Application Server traditional Version 9.0.5.11

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APAR status

  • Closed as program error.

Error description

  • We see below NullPointerExceptions in logs.  When ever the
    session manager was not able to find the session context, these
    below exceptions are thrown.
    
    Cause:
    Most of the times these exceptions are due to the fact that,
    when the customers modify the deployment.xml file directly for
    any session manager changes. This gets resolved by redeploying
    the application.
    
    Instead of throwing the below NullPointerExceptions, session
    manager should add some nice message saying that the application
    need to be deployed or the configuration changes should not be
    done directly etc.
    
    ###
    [2/21/17 15:22:14:967 CST] 00000071 WebContainer E
    com.ibm.ws.webcontainer.internal.WebContainer getSessionContext
    SRVE8059E: An unexpected exception occurred when trying to
    retrieve the
    session context
    java.lang.NullPointerException
    at
    com.ibm.ws.session.WsSessionMgrComponentImpl.initSessionManagerC
    onfigFro
    mRCS(WsSessionMgrComponentImpl.java:602)
    at
    com.ibm.ws.session.WsSessionMgrComponentImpl.getSessionMgrConfig
    (WsSessi
    onMgrComponentImpl.java:763)
    at
    com.ibm.ws.session.WsSessionContextRegistry.getSMC(WsSessionCont
    extRegis
    try.java:167)
    at
    com.ibm.ws.session.SessionContextRegistry.getSessionContext(Sess
    ionConte
    xtRegistry.java:139)
    ###
    

Local fix

Problem summary

  • ****************************************************************
    * USERS AFFECTED:  IBM WebSphere Application Server version    *
    *                  8.5.5 and 9.0 users.                        *
    ****************************************************************
    * PROBLEM DESCRIPTION: Session manager may throw               *
    *                      java.lang.NullPointerException when     *
    *                      contexts are missing from session       *
    *                      management configuration                *
    ****************************************************************
    * RECOMMENDATION:                                              *
    ****************************************************************
    When the customers modify the server.xml file or
    deployment.xml file directly to change the session management
    configuration, it may result java.lang.NullPointerException.
    

Problem conclusion

  • Code changes were made to prompt better messages and indicate
    the missing contexts from the session management
    configuration.
    The fix for this APAR is currently targeted for
    inclusion in WebSphere Application Server Fixpack 8.5.5.12,
    and WebSphere Application Server Fixpack 9.0.0.4.  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 number

    PI78540

  • Reported component name

    WEBSPHERE APP S

  • Reported component ID

    5724J0800

  • Reported release

    850

  • Status

    CLOSED PER

  • PE

    NoPE

  • HIPER

    NoHIPER

  • Special Attention

    NoSpecatt / Xsystem

  • Submitted date

    2017-03-22

  • Closed date

    2017-05-11

  • Last modified date

    2017-05-11

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

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

Fix information

  • Fixed component name

    WEBSPHERE APP S

  • Fixed component ID

    5724J0800

Applicable component levels

  • R850 PSY

       UP

  • R900 PSY

       UP

[{"Business Unit":{"code":"BU059","label":"IBM Software w\/o TPS"},"Product":{"code":"SSEQTP","label":"WebSphere Application Server"},"Platform":[{"code":"PF025","label":"Platform Independent"}],"Version":"8.5","Line of Business":{"code":"LOB45","label":"Automation"}}]

Document Information

Modified date:
04 May 2022