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PM56800: NullPointerException occurs from WASSchedular MBean

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APAR status

  • Closed as program error.

Error description

  • The findEJBTimers or cancelEJBTimers commands result in a
    NullPointerException when connecting to the deployment manager.
    

Local fix

  • N/A
    

Problem summary

  • ****************************************************************
    * USERS AFFECTED:  WebSphere Application Server users of       *
    *                  Enterprise Java Bean (EJB) timer commands   *
    ****************************************************************
    * PROBLEM DESCRIPTION: The findEJBTimers or cancelEJBTimers    *
    *                      commands result in a                    *
    *                      NullPointerException when connecting    *
    *                      to the deployment manager.              *
    ****************************************************************
    * RECOMMENDATION:                                              *
    ****************************************************************
    The findEJBTimers and cancelEJBTimers commands use an MBean to
    obtain timer task objects from the target server.  When
    returning objects from the server to the client, the objects
    are intermediately deserialized and reserialized in the
    deployment manager.  The logic to serialize a timer task
    object required an active scheduler service to obtain pieces
    of metadata, but the scheduler service is not active in the
    deployment manager process.
    

Problem conclusion

  • The timer task object logic was changed to detect that
    reserialization is occurring and to directly reserialize the
    data rather than attempting to use the scheduler service.
    
    The fix for this APAR is currently targeted for inclusion in
    fix pack 8.0.0.4.  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

    PM56800

  • Reported component name

    WEBS APP SERV N

  • Reported component ID

    5724H8800

  • Reported release

    800

  • Status

    CLOSED PER

  • PE

    NoPE

  • HIPER

    NoHIPER

  • Special Attention

    NoSpecatt

  • Submitted date

    2012-01-27

  • Closed date

    2012-02-15

  • Last modified date

    2012-02-15

  • 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

    WEBS APP SERV N

  • Fixed component ID

    5724H8800

Applicable component levels

  • R800 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":"8.0","Line of Business":{"code":"LOB45","label":"Automation"}}]

Document Information

Modified date:
28 October 2021