IBM Support

PM02156: FIX MEMORY LEAK IN SCAPROXY

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You can track all active APARs for this component.

 

APAR status

  • Closed as program error.

Error description

  • A memery leak in SCAProxy class which has a WeakHashMap and
    the value has a strong reference to the key, and hence the key
    is not garbage collected. Need to fix this by making the value
    having a WeakReference to the key
    

Local fix

Problem summary

  • ****************************************************************
    * USERS AFFECTED:  Users of WebSphere Application Server v7    *
    *                  Feature Pack for Service Component          *
    *                  Architecture (SCA) Refresh Pack v1.0.1      *
    ****************************************************************
    * PROBLEM DESCRIPTION: A memory leak due to a WeakHashMap      *
    *                      with the values having strong           *
    *                      references to the keys.                 *
    ****************************************************************
    * RECOMMENDATION:                                              *
    ****************************************************************
    Memory leak occurs in SCAProxy Class due to an improperly
    assigned WeakHashMap
    

Problem conclusion

  • Fix the leak by modifying code to have a WeakReference by the
    value to the key
    
    APAR PM02156 is currently targeted for inclusion in Service
    Level (Fix Pack) 1.0.1.3 of WebSphere Application Server v7
    Feature Pack for Service Component Architecture (SCA) Refresh
    Pack. 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

    PM02156

  • Reported component name

    WAS SCA FEATURE

  • Reported component ID

    5724J0854

  • Reported release

    700

  • Status

    CLOSED PER

  • PE

    NoPE

  • HIPER

    NoHIPER

  • Special Attention

    NoSpecatt

  • Submitted date

    2009-11-25

  • Closed date

    2010-01-04

  • Last modified date

    2010-01-04

  • 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

    WAS SCA FEATURE

  • Fixed component ID

    5724J0854

Applicable component levels

  • R700 PSY

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Document Information

Modified date:
09 February 2022