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IC90624: CONCURRENTMODIFICATOINEXCEPTION SEEN WHEN TRYING TO ACCESS A HASHMAP

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You can track all active APARs for this component.

 

APAR status

  • Closed as program error.

Error description

  • A java.util.ConcurrentModificationException may be seen in the
    resulting FFDC when a mediation flow tries to access the node
    properties for the flow.
    

Local fix

  • n/a
    

Problem summary

  • ****************************************************************
    USERS AFFECTED:
    Users of WebSphere Enterprise Service Bus, WebSphere Process
    Server or Business Process Manager who see a
    FlowBuildException from a flow or a subflow with a resulting
    FFDC showing a ConcurrentModificationException.
    
    ****************************************************************
    PROBLEM SUMMARY:
    The node properties from a flow or subflow were previously
    stored in a Hash Map. Under certain conditions accessing this
    Hash Map could result in a ConcurrentModificationException and
    the resulting FlowBuildException which prevents the flow being
    used. This would be an intermittent problem not effecting
    every message into the flow.
    The Hash Map was replaced with a ConcurrentHashMap to avoid this
    issue
    

Problem conclusion

  • The code was altered to use a ConcurrentHashMap to avoid the
    issue.
    
    This code fix was targeted to be included in the following fix
    packs:
    6.2.0 Fix Pack 4 (v6.2.0.4)
    7.0.0 Fix Pack 6 (v7.0.0.6)
    7.5.1 Fix Pack 2 (v7.5.1.2)
    

Temporary fix

Comments

APAR Information

  • APAR number

    IC90624

  • Reported component name

    WEB ESB FOR WIN

  • Reported component ID

    5724I8200

  • Reported release

    620

  • Status

    CLOSED PER

  • PE

    NoPE

  • HIPER

    NoHIPER

  • Special Attention

    NoSpecatt

  • Submitted date

    2013-03-05

  • Closed date

    2013-05-28

  • Last modified date

    2013-05-28

  • 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

    WEB ESB FOR WIN

  • Fixed component ID

    5724I8200

Applicable component levels

  • R620 PSY

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Document Information

Modified date:
30 March 2023