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JR46898: java.lang.ClassCastException may occure if using an EJB client implementation as managed asset

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APAR status

  • Closed as program error.

Error description

  • WebSphere Application Server optimizes EJB client performance
    by caching already looked up implementation classes. Managed
    assets within Business Process Manager are internally using
    a special class loader that has incompatible behavior for the
    WebSphere Application Server cache.
    
    
    Adding an jar file to a process app or toolkit which contains an
    ejb  client may result in a ClassCastException.
    WebSphere Application  Server uses a caching strategy for those
    ejb client class files what can lead to incompatibilities with
    the class loading strategy of BPM.
    This interim fix changes the class loading strategy so that
    WebSphere Application Server cansafely cache those  classes.
    

Local fix

  • n/a
    

Problem summary

  • WebSphere Application Server optimizes EJB client performance
    by caching already looked up implementation classes. Managed
    assets within Business Process Manager are internally using
    a special class loader that has incompatible behavior for the
    WebSphere Application Server cache.
    
    
    Adding an jar file to a process app or toolkit which contains an
    EJB client may result in a ClassCastException.
    WebSphere Application  Server uses a caching strategy for those
    EJB client class files what can lead to incompatibilities with
    the class loading strategy of BPM.
    This interim fix changes the class loading strategy so that
    WebSphere Application Server can safely cache those  classes.
    

Problem conclusion

  • This interim fix changes the class loader behavior so the
    WebSphere Application Server cache will work correctly.
    
    FIX AVAILABILITY:
    iFix on top of BPM 7.5.1.0 is available on Fix Central, search
    for APAR JR46873 at http://www.ibm.com/support/fixcentral/
    
    When obtaining any of the above fixes, be sure to download the
    accompanying readme, for itself and any prerequisite fixes, and
    review them thorougly.
    
    Fix will be included in BPM 7.5.1.2 fixpack.
    

Temporary fix

Comments

APAR Information

  • APAR number

    JR46898

  • Reported component name

    BPM ADVANCED

  • Reported component ID

    5725C9400

  • Reported release

    751

  • Status

    CLOSED PER

  • PE

    NoPE

  • HIPER

    NoHIPER

  • Special Attention

    NoSpecatt

  • Submitted date

    2013-06-10

  • Closed date

    2013-08-27

  • Last modified date

    2013-08-27

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

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

    JR46944 JR46945

Fix information

  • Fixed component name

    BPM ADVANCED

  • Fixed component ID

    5725C9400

Applicable component levels

  • R751 PSY

       UP

[{"Business Unit":{"code":"BU053","label":"Cloud & Data Platform"},"Product":{"code":"SSFTN5","label":"IBM Business Process Manager Advanced"},"Component":"","ARM Category":[],"Platform":[{"code":"PF025","label":"Platform Independent"}],"Version":"7.5.1","Edition":"","Line of Business":{"code":"LOB36","label":"IBM Automation"}}]

Document Information

Modified date:
27 August 2013