PM22942: WHEN USING THE COPY_TO_BYTES COPYMODE, ARRAYINDEXOUTOFBOUNDSEXCE PTION CAN HAPPEN DURING A GET OPERATION.

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You can track all active APARs for this component.

APAR status

  • Closed as program error.

Error description

  • Description: If many different class types being put into a
    Grid's maps with COPY_TO_BYTES CopyMode, an
    ArrayIndexOutOfBoundsException can occur when deserializing
    values.
    

Local fix

Problem summary

  • ****************************************************************
    * USERS AFFECTED:  All users of WebSphere eXtreme Scale that   *
    *                  are using the COPY_TO_BYTES CopyMode.       *
    *                                                              *
    ****************************************************************
    * PROBLEM DESCRIPTION: When CopyMode is set to COPY_TO_BYTES   *
    *                      an ArrayIndexOutOfBoundsException       *
    *                      exception is logged during remote       *
    *                      transactions.                           *
    ****************************************************************
    * RECOMMENDATION:                                              *
    ****************************************************************
    The following exception is logged when a get or getForUpdate
    method is called on ObjectMap API.
    
    com.ibm.websphere.objectgrid.ObjectGridRuntimeException:
    java.lang.ArrayIndexOutOfBoundsException: Array index out of
    range:
        at
    com.ibm.ws.objectgrid.map.BaseMap.bytesToObject(BaseMap.java:967
    3)
        at
    com.ibm.ws.objectgrid.map.BaseMap.getValueCopyForTransaction(Bas
    eMap.java:3868)
        at
    com.ibm.ws.objectgrid.DiffMapValue.getCurrentValue(DiffMapValue.
    java:402)
        at com.ibm.ws.objectgrid.DiffMap.get(DiffMap.java:718)
        at
    com.ibm.ws.objectgrid.ObjectMapImpl.get(ObjectMapImpl.java:424)
        at
    com.ibm.ws.objectgrid.ObjectMapImpl.getForUpdate(ObjectMapImpl.j
    ava:568)
    Caused by: java.lang.ArrayIndexOutOfBoundsException: Array
    index out of range:
        at
    com.ibm.ws.objectgrid.plugins.SerializationInfoCacheImpl.lookupB
    yIndex(SerializationInfoCacheImpl.java:130)
        at
    com.ibm.ws.objectgrid.map.BaseMap.bytesToObject(BaseMap.java:962
    3)
    

Problem conclusion

  • A future cumulative fix will correct the problem for WebSphere
    eXtreme Scale Version 7.0 and Version 7.1
    

Temporary fix

Comments

APAR Information

  • APAR number

    PM22942

  • Reported component name

    XD EXTREME SCAL

  • Reported component ID

    5724J3402

  • Reported release

    610

  • Status

    CLOSED PER

  • PE

    NoPE

  • HIPER

    NoHIPER

  • Special Attention

    NoSpecatt

  • Submitted date

    2010-09-21

  • Closed date

    2010-10-01

  • Last modified date

    2010-10-01

  • 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

    XD EXTREME SCAL

  • Fixed component ID

    5724J3402

Applicable component levels

  • R700 PSY

       UP

  • R710 PSY

       UP



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Document information


More support for:

WebSphere eXtreme Scale
General

Software version:

6.1

Reference #:

PM22942

Modified date:

2010-10-01

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