IZ35344: CRASH IN JIT COMPILED METHOD WITH MORE THAN 16 PARAMETERS

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You can track all active APARs for this component.

APAR status

  • Closed as program error.

Error description

  • Error Message: N/A
    .
    Stack Trace: N/A
    .
    

Local fix

  • This problem can be worked around by excluding affected methods
    from JIT compilation; however, the methods to be excluded depend
    on the specific application / situation and require deep
    technical expertise for identification.  Please contact IBM for
    assistance with a work-around.
    

Problem summary

  • During a transition from executing JIT'ed java code to executing
    interpreted java code, when more than 16 parameters have been
    passed and some of the parameters above the 16th are floats and
    / or doubles, a hashing algorithm fails to distinguish between
    two called methods and re-uses a data structure that is not
    compatible between the two methods.
    

Problem conclusion

  • This defect will be fixed in:
    6.0.0 SR4
    5.0.0 SR12
    .
    The hashing algorithm has been improved such that it correctly
    distinguishes between the two called methods.
    .
    To obtain the fix:
    Install build 20081117 or later
    

Temporary fix

Comments

APAR Information

  • APAR number

    IZ35344

  • 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

    2008-10-22

  • Closed date

    2008-12-16

  • Last modified date

    2010-07-22

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

    IZ35337

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

Fix information

  • Fixed component name

    JAVA 5 J9 COMMO

  • Fixed component ID

    620500127

Applicable component levels

  • R500 PSN

       UP



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Document information


More support for:

Runtimes for Java Technology
Virtual Machine

Software version:

5.0

Reference #:

IZ35344

Modified date:

2010-07-22

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