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PI82994: FILENOTIFICATIONMBEAN MAY NOT NOTIFY THE LISTENER

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You can track all active APARs for this component.

 

APAR status

  • Closed as program error.

Error description

  • If there are two simultaneous calls to the file notification
    MBean made with different arguments, one of the calls can
    get
    lost if the thread fails to obtain a lock.
    

Local fix

  • synchronize calls to the notifyFileChanges operation on the
    mbean
    

Problem summary

  • ****************************************************************
    * USERS AFFECTED:  Users of the FileNotificationMBean          *
    ****************************************************************
    * PROBLEM DESCRIPTION: The FileNotificationMBean is not thread *
    *                      safe                                    *
    ****************************************************************
    * RECOMMENDATION:                                              *
    ****************************************************************
    Multiple simultaneous calls to the FileNotificationMBean's
    notifyFileChanges method can result in one of the calls not
    being honored. The method attempts to obtain a lock to prevent
    multiple threads from executing the method simultaneously. If a
    thread fails to obtain the lock because another thread is
    holding it, the method will exit leaving state variables in an
    invalid state.
    

Problem conclusion

  • The internal method associated with the notifyFileChanges method
    will now wait to obtain a lock instead of exiting out if the
    lock is not available.
    
    The fix for this APAR is currently targeted for inclusion in fix
    pack 17.0.0.3.  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

    PI82994

  • Reported component name

    LIBERTY PROF -

  • Reported component ID

    5655W6514

  • Reported release

    CD0

  • Status

    CLOSED PER

  • PE

    NoPE

  • HIPER

    NoHIPER

  • Special Attention

    NoSpecatt / Xsystem

  • Submitted date

    2017-06-13

  • Closed date

    2017-06-27

  • Last modified date

    2017-06-27

  • 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

    LIBERTY PROF -

  • Fixed component ID

    5655W6514

Applicable component levels

  • RCD0 PSY

       UP

[{"Business Unit":{"code":"BU054","label":"Systems w\/TPS"},"Product":{"code":"SG19M"},"Platform":[{"code":"PF054","label":"z\/OS"}],"Version":"CD0"}]

Document Information

Modified date:
07 September 2021