IBM Support

IV31201: UNEXPECTED NULLPOINTEREXCEPTION IN A JAVA METHOD CONTAINING LOOP S

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APAR status

  • Closed as program error.

Error description

  • Error Message: An unexpected NullPointerException is thrown
    in a Java method containing loops.
    .
    Stack Trace:
    .
    

Local fix

  • Running with the JVM option -Xjit:disableLoopVersioner will
    work around the problem.
    

Problem summary

  • A JIT optimization has failed to insert a necessary check before
    a specialized version of a loop in certain cases.
    

Problem conclusion

  • This defect will be fixed in:
    6.0.1 SR5
    7.0.0 SR4
    6.0.0 SR15 FP1
    .
    The JIT compiler has been updated to prevent the unexpected
    exception.
    

Temporary fix

Comments

APAR Information

  • APAR number

    IV31201

  • Reported component name

    JIT

  • Reported component ID

    620700124

  • Reported release

    260

  • Status

    CLOSED PER

  • PE

    NoPE

  • HIPER

    NoHIPER

  • Special Attention

    NoSpecatt

  • Submitted date

    2012-10-30

  • Closed date

    2013-02-19

  • Last modified date

    2013-10-18

  • 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

    JIT

  • Fixed component ID

    620700124

Applicable component levels

  • R260 PSY

       UP

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Document Information

Modified date:
18 October 2013