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IV30415: WHEN USING JVMTI HEAP ITERATION METHODS, OBJECTS THAT COULD CRAS H THE JVM MAY BE RETURNED

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You can track all active APARs for this component.

APAR status

  • Closed as program error.

Error description

  • Error Message: A GPF is received when calling JVMTI functions on
    an uninitialized instance of java.lang.Class?returned from
    iterateOverHeap() or iterateThroughHeap()
    .
    Stack Trace: N/A
    .
    Issue occurs when the system is performing class loading when
    low on native memory.
    

Local fix

  • Disable JVMTI agent
    

Problem summary

  • The problem is caused when an uninitialized instance of
    java.lang.Class is returned from the JVMTI
    iterateThroughHeap()/iterateOverHeap()
    

Problem conclusion

  • This defect will be fixed in:
    6.0.0 SR13
    7.0.0 SR4
    6.0.1 SR5
    .
    The JVM has been updated to not return uninitialized instances
    of java.lang.Class from iterateThroughHeap()/iteratorOverHeap().
    

Temporary fix

Comments

APAR Information

  • APAR number

    IV30415

  • Reported component name

    J9 COMMON CODE

  • Reported component ID

    620700127

  • Reported release

    600

  • Status

    CLOSED PER

  • PE

    NoPE

  • HIPER

    NoHIPER

  • Special Attention

    NoSpecatt

  • Submitted date

    2012-10-16

  • Closed date

    2012-10-16

  • Last modified date

    2012-10-23

  • 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

    J9 COMMON CODE

  • Fixed component ID

    620700127

Applicable component levels

  • R600 PSY

       UP

  • R260 PSY

       UP



Document information

More support for: Runtimes for Java Technology
Virtual Machine

Software version: 6.0

Reference #: IV30415

Modified date: 23 October 2012