IZ99249: USE OF THREAD.STOP() MAY CAUSE OBJECTS TO REMAIN LOCKED.

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APAR status

  • Closed as program error.

Error description

  • Error Message: An object may become locked by a thread that no
    longer exists causing other threads to hang by waiting for the
    object to become unlocked.
    .
    Stack Trace: N/A
    .
    This issue is only present if the deprecated method
    Thread.stop() is used.
    

Local fix

  • -Xjit:disableRedundantAsyncCheckRemoval
    

Problem summary

  • In JIT compiled code, there are certain code regions that were
    not capable of unlocking objects held by the thread destroyed by
    the Thread.stop() method.
    

Problem conclusion

  • This defect will be fixed in:
    5.0.0 SR12FP5
    .
    The JIT compiler was changed such that any area where a thread
    death exception resulting from a Thread.stop() call could be
    thrown would be able to unlock any objects held by the thread
    being terminated.
    .
    To obtain the fix:
    Install build 20110502 or later
    

Temporary fix

Comments

APAR Information

  • APAR number

    IZ99249

  • Reported component name

    JAVA 5 JIT

  • Reported component ID

    620500124

  • Reported release

    500

  • Status

    CLOSED PER

  • PE

    NoPE

  • HIPER

    NoHIPER

  • Special Attention

    NoSpecatt

  • Submitted date

    2011-04-26

  • Closed date

    2011-05-12

  • Last modified date

    2011-05-12

  • 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 5 JIT

  • Fixed component ID

    620500124

Applicable component levels

  • R500 PSY

       UP



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Document information


More support for:

Runtimes for Java Technology
Just In Time (JIT) Compiler

Software version:

5.0

Reference #:

IZ99249

Modified date:

2011-05-12

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