IBM Support

IZ97009: Native memory leak due to Deflaters in GZIPOutputStream

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APAR status

  • Closed as program error.

Error description

  • Error Message: java.lang.OutOfMemoryError
    .
    Stack Trace: exception is java.lang.OutOfMemoryError
    
            at java.util.zip.Deflater.init(Native Method)
    
            at java.util.zip.Deflater.<init>(Deflater.java:135)
    
            at
    java.util.zip.GZIPOutputStream.<init>(GZIPOutputStream.java:
    58)
    
            at
    java.util.zip.GZIPOutputStream.<init>(GZIPOutputStream.java:
    70)
    
            at com.ibm.ws.hamanager.coordinator.vsmessages.bboard.
    
    SubscriberUpdateMs
    
    g.writeObject(SubscriberUpdateMsg.java:217)
    .
    

Local fix

  • User should call GZIPOutputStream.close() to clear memory
    allocated by deflators
    

Problem summary

  • Problem was caused a GZIPOutputStream.finish() method
    did not clean underlying deflators.
    

Problem conclusion

  • This defect will be fixed in:
    6.0.0 SR9 FP2
    .
    Problem is resolved by cleaning underlying deflators in
    GZIPOutputStream.finish()
    .
    To obtain the fix:
    Install build 20110408 or later
    

Temporary fix

Comments

APAR Information

  • APAR number

    IZ97009

  • Reported component name

    JAVA CLASS LIBS

  • Reported component ID

    620700130

  • Reported release

    600

  • Status

    CLOSED PER

  • PE

    NoPE

  • HIPER

    NoHIPER

  • Special Attention

    NoSpecatt

  • Submitted date

    2011-03-24

  • Closed date

    2011-04-29

  • Last modified date

    2011-07-09

  • 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

    JAVA CLASS LIBS

  • Fixed component ID

    620700130

Applicable component levels

  • R600 PSN

       UP

[{"Business Unit":{"code":"BU048","label":"IBM Software"},"Product":{"code":"SSCVQ3Y","label":"Java Class Libraries"},"Component":"","ARM Category":[],"Platform":[{"code":"PF025","label":"Platform Independent"}],"Version":"6.0","Edition":"","Line of Business":{"code":"","label":""}}]

Document Information

Modified date:
09 July 2011