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PM62582: CONCURRENTMODIFICATIONEXCEPTION PROCESSING CLASSES IMPLEMENTING ANNOTATED INTERFACES.

Fixes are available

8.0.0.4: WebSphere Application Server V8.0 Fix Pack 4
7.0.0.25: WebSphere Application Server V7.0 Fix Pack 25
8.5.0.1: WebSphere Application Server V8.5 Fix Pack 1
8.0.0.5: WebSphere Application Server V8.0 Fix Pack 5
7.0.0.27: WebSphere Application Server V7.0 Fix Pack 27
8.5.0.2: WebSphere Application Server V8.5 Fix Pack 2
8.0.0.6: WebSphere Application Server V8.0 Fix Pack 6
7.0.0.29: WebSphere Application Server V7.0 Fix Pack 29
8.0.0.7: WebSphere Application Server V8.0 Fix Pack 7
8.0.0.8: WebSphere Application Server V8.0 Fix Pack 8
7.0.0.31: WebSphere Application Server V7.0 Fix Pack 31
7.0.0.27: Java SDK 1.6 SR13 FP2 Cumulative Fix for WebSphere Application Server
7.0.0.33: WebSphere Application Server V7.0 Fix Pack 33
8.0.0.9: WebSphere Application Server V8.0 Fix Pack 9
7.0.0.35: WebSphere Application Server V7.0 Fix Pack 35
8.0.0.10: WebSphere Application Server V8.0 Fix Pack 10
7.0.0.37: WebSphere Application Server V7.0 Fix Pack 37
8.0.0.11: WebSphere Application Server V8.0 Fix Pack 11
7.0.0.39: WebSphere Application Server V7.0 Fix Pack 39
8.0.0.12: WebSphere Application Server V8.0 Fix Pack 12
7.0.0.41: WebSphere Application Server V7.0 Fix Pack 41
8.0.0.13: WebSphere Application Server V8.0 Fix Pack 13
7.0.0.43: WebSphere Application Server V7.0 Fix Pack 43
8.0.0.14: WebSphere Application Server V8.0 Fix Pack 14
7.0.0.45: WebSphere Application Server V7.0 Fix Pack 45
8.0.0.15: WebSphere Application Server V8.0 Fix Pack 15
7.0.0.25: Java SDK 1.6 SR11 Cumulative Fix for WebSphere Application Server
7.0.0.27: Java SDK 1.6 SR12 Cumulative Fix for WebSphere Application Server
7.0.0.29: Java SDK 1.6 SR13 FP2 Cumulative Fix for WebSphere Application Server
7.0.0.45: Java SDK 1.6 SR16 FP60 Cumulative Fix for WebSphere Application Server
7.0.0.31: Java SDK 1.6 SR15 Cumulative Fix for WebSphere Application Server
7.0.0.35: Java SDK 1.6 SR16 FP1 Cumulative Fix for WebSphere Application Server
7.0.0.37: Java SDK 1.6 SR16 FP3 Cumulative Fix for WebSphere Application Server
7.0.0.39: Java SDK 1.6 SR16 FP7 Cumulative Fix for WebSphere Application Server
7.0.0.41: Java SDK 1.6 SR16 FP20 Cumulative Fix for WebSphere Application Server
7.0.0.43: Java SDK 1.6 SR16 FP41 Cumulative Fix for WebSphere Application Server

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You can track all active APARs for this component.

APAR status

  • Closed as program error.

Error description

  • The processing of an annotated class which implements an
    interface defined in a separate jar file can cause a
    ConcurrentModificationException.
    
    During annotations processing, the steps of determining which
    annotated classes are to be processed examines the interfaces of
    the candidate target classes.  That step of examining
    interfaces is causing a late load of an interface which
    contains annotations. The late load updates the annotation
    targets collections, which leads to the
    ConcurrentModificationException.
    
    Eg:
    -------------------------------
    0000001d annotations   E   Merge Processing Failure
    
    java.util.ConcurrentModificationException
     at
    java.util.HashMap$AbstractMapIterator.checkConcurrentMod(HashMap
    .java:122)
     at
    java.util.HashMap$AbstractMapIterator.makeNext(HashMap.java:127)
     at java.util.HashMap$ValueIterator.next(HashMap.java:212)
     at
    com.ibm.ws.amm.scan.AnnotationScannerImpl.getClassAnnotationTarg
    ets(AnnotationScannerImpl.java:303)
     at
    com.ibm.wsspi.amm.merge.AbstractMergeAction.mergeClassTargets(Ab
    stractMergeAction.java:320)
     at
    com.ibm.wsspi.amm.merge.AbstractMergeAction.merge(AbstractMergeA
    ction.java:123)
     at
    com.ibm.ws.amm.AnnotativeMetadataManagerImpl.performMergeOperati
    ons(AnnotativeMetadataManagerImpl.java:504)
     at
    com.ibm.ws.amm.AnnotativeMetadataManagerImpl.merge(AnnotativeMet
    adataManagerImpl.java:269)
    ----------------------------------
    

Local fix

  • n/a
    

Problem summary

  • ****************************************************************
    * USERS AFFECTED:  All users of IBM WebSphere Application      *
    *                  Server deploying applications which use     *
    *                  annotations.                                *
    ****************************************************************
    * PROBLEM DESCRIPTION: A ConcurrentModificationException is    *
    *                      logged from annotations processing      *
    *                      while deploying an application.         *
    ****************************************************************
    * RECOMMENDATION:                                              *
    ****************************************************************
    The processing of an annotated class which implements an
    interface defined in a separate jar file, where the interface
    is also annotated, causes a ConcurrentModificationException to
    be written to server log files.
    For example:
    0000001d annotations   E   Merge Processing Failure
    java.util.ConcurrentModificationException
    at
    java.util.HashMap$AbstractMapIterator.checkConcurrentMod(HashMap
    .java:122)
    at
    java.util.HashMap$AbstractMapIterator.makeNext(HashMap.java:127)
    at java.util.HashMap$ValueIterator.next(HashMap.java:212)
    at
    com.ibm.ws.amm.scan.AnnotationScannerImpl.getClassAnnotationTarg
    ets(AnnotationScannerImpl.java:303)
    at
    com.ibm.wsspi.amm.merge.AbstractMergeAction.mergeClassTargets(Ab
    stractMergeAction.java:320)
    at
    com.ibm.wsspi.amm.merge.AbstractMergeAction.merge(AbstractMergeA
    ction.java:123)
    at
    com.ibm.ws.amm.AnnotativeMetadataManagerImpl.performMergeOperati
    ons(AnnotativeMetadataManagerImpl.java:504)
    at
    com.ibm.ws.amm.AnnotativeMetadataManagerImpl.merge(AnnotativeMet
    adataManagerImpl.java:269)
    The exception does not cause the deployment to fail, but is
    written to server logs.  The exception does mean that steps
    of processing the application metadata may be incomplete.
    The features of an application which encounter the problem
    are:
    *) A module of the application is enabled for Java
    Enterprise Edition 5 or higher, and is enabled for annotations
    processing (is not metadata-complete).
    *) The module contains an annotated class which implements an
    interface which is defined outside of the module.  For
    example, the class might have an EJB annotation and might
    implement an interface defined in an application library jar
    file.
    *) The interface has an annotation.
    

Problem conclusion

  • A code update was made to prevent the concurrent modification
    exception.
    
    The fix for this APAR is currently targeted for inclusion in
    fix packs 7.0.0.25, 8.0.0.4, and 8.5.0.1.  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

    PM62582

  • Reported component name

    WEBS APP SERV N

  • Reported component ID

    5724H8800

  • Reported release

    800

  • Status

    CLOSED PER

  • PE

    NoPE

  • HIPER

    NoHIPER

  • Special Attention

    NoSpecatt

  • Submitted date

    2012-04-17

  • Closed date

    2012-05-07

  • Last modified date

    2012-05-07

  • 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

  • R700 PSY

       UP

  • R800 PSY

       UP

  • R850 PSY

       UP



Document information

More support for: WebSphere Application Server
General

Software version: 8.0

Reference #: PM62582

Modified date: 07 May 2012