IV00425: NATIVE MEMORY LEAK WHEN A LARGE NUMBER OF DISCRETE THREADS CAUSEGCS IN THE PRESENCE OF CLASS UNLOADING OR USE OF JVMTI

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You can track all active APARs for this component.

APAR status

  • Closed as program error.

Error description

  • Error Message: When creating and destroying a large number of
    threads which cause garbage collections that cause class
    unloading, or garbage collections when running with a JVMTI
    agent that has the "can_tag_objects" capability enabled
    
    .
    Stack Trace: N/A
    .
    customer reported 300,000+ threads being created and destroyed
    during their testing
    
    CMVC: sov,180492
    

Local fix

Problem summary

  • The problem is caused when an excessive number of threads are
    
    created and destroyed which invoke the Segment Interator and/or
    Object Iterator
    

Problem conclusion

  • This defect will be fixed in:
    6.0.0 SR9  FP2
    5.0.0 SR12 FP5
    .
    The JVM has been updated to prevent the memory leak
    

Temporary fix

  • n/a
    

Comments

APAR Information

  • APAR number

    IV00425

  • Reported component name

    JAVA 5 J9 COMMO

  • Reported component ID

    620500127

  • Reported release

    500

  • Status

    CLOSED PER

  • PE

    NoPE

  • HIPER

    NoHIPER

  • Special Attention

    NoSpecatt

  • Submitted date

    2011-05-20

  • Closed date

    2011-07-22

  • Last modified date

    2011-07-22

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

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

    IV00482

Fix information

  • Fixed component name

    JAVA 5 J9 COMMO

  • Fixed component ID

    620500127

Applicable component levels

  • R500 PSY

       UP



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Document information


More support for:

Runtimes for Java Technology
Virtual Machine

Software version:

5.0

Reference #:

IV00425

Modified date:

2011-07-22

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