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PI99546: During jvm shutdown a CWOBB9999E message is logged referencing a NullPointerException rooted at InterestManagerImpl.java:1264.

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APAR status

  • Closed as program error.

Error description

  • During server shutdown a CWOBB9999E error message is logged
    in SystemOut.log referencing the following stack:
    java.lang.NullPointerException
    at
    com.ibm.ws.bbson.interest.InterestManagerImpl$InterestAlarmL
    istener.sendMsgs(InterestManagerImpl.java:1264)
    at
    com.ibm.ws.bbson.interest.InterestManagerImpl$InterestAlarmL
    istener.alarmWork(InterestManagerImpl.java:1165)
    at
    com.ibm.ws.bbson.interest.InterestManagerImpl$InterestAlarmL
    istener.alarm(InterestManagerImpl.java:1068)
          at com.ibm.ejs.util.am._Alarm.runImpl(_Alarm.java:151)
            at com.ibm.ejs.util.am._Alarm.run(_Alarm.java:136)
    at
    com.ibm.ws.util.ThreadPool$Worker.run(ThreadPool.java:1892)
    
    The NullPointerException occurred because when the shutdown
    sequence executed BBSON was running an alarm thread
    responsible for broadcasting bulletin board messages over
    P2P/SON and P2P/SON was already down when BBSON tried to
    interact it. There is no side effects to this condition
    because the messages that would have been sent are thrown
    away when BBSON itself shutdown and cancels all of its alarm
    threads.
    

Local fix

  • N/A
    

Problem summary

  • ****************************************************************
    * USERS AFFECTED:  All users of IBM WebSphere Application      *
    *                  Server WAS ND edition- Virtual              *
    *                  Enterprise/IM Component                     *
    ****************************************************************
    * PROBLEM DESCRIPTION: During jvm shutdown a CWOBB9999E        *
    *                      message is logged referencing a         *
    *                      NullPointerException rooted at          *
    *                      InterestManagerImpl.java:1264.          *
    ****************************************************************
    * RECOMMENDATION:                                              *
    ****************************************************************
    During server shutdown a CWOBB9999E error message is logged in
    SystemOut.log referencing the following stack:
    java.lang.NullPointerException
            at
    com.ibm.ws.bbson.interest.InterestManagerImpl$InterestAlarmListe
    ner.sendMsgs(InterestManagerImpl.java:1264)
            at
    com.ibm.ws.bbson.interest.InterestManagerImpl$InterestAlarmListe
    ner.alarmWork(InterestManagerImpl.java:1165)
            at
    com.ibm.ws.bbson.interest.InterestManagerImpl$InterestAlarmListe
    ner.alarm(InterestManagerImpl.java:1068)
            at com.ibm.ejs.util.am._Alarm.runImpl(_Alarm.java:151)
            at com.ibm.ejs.util.am._Alarm.run(_Alarm.java:136)
            at
    com.ibm.ws.util.ThreadPool$Worker.run(ThreadPool.java:1892)
    
    The NullPointerException occurred because when the shutdown
    sequence executed BBSON was running an alarm thread responsible
    for broadcasting bulletin board messages over P2P/SON and
    P2P/SON was already down when BBSON tried to interact it. There
    is no side effects to this condition because the messages that
    would have been sent are thrown away when BBSON itself shutdown
    and cancels all of its alarm threads.
    

Problem conclusion

  • The BBSON code was altered to avoid encountering the
    java.lang.NullPointerException during shutdown when one of its
    alarm threads is running simultaneously.
    
    The fix for this APAR is currently targeted for inclusion in fix
    packs 8.5.5.14 and 9.0.0.9.  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

    PI99546

  • Reported component name

    WEBS APP SERV N

  • Reported component ID

    5724H8800

  • Reported release

    850

  • Status

    CLOSED PER

  • PE

    NoPE

  • HIPER

    NoHIPER

  • Special Attention

    NoSpecatt / Xsystem

  • Submitted date

    2018-06-25

  • Closed date

    2018-08-28

  • Last modified date

    2018-08-28

  • 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

  • R850 PSY

       UP

[{"Business Unit":{"code":"BU053","label":"Cloud \u0026 Data Platform"},"Product":{"code":"SSEQTP","label":"WebSphere Application Server"},"Platform":[{"code":"PF025","label":"Platform Independent"}],"Version":"850","Line of Business":{"code":"LOB36","label":"IBM Automation"}}]

Document Information

Modified date:
19 October 2021