IV00030: CRASH WHEN ATTEMPTING TO LOAD A CORRUPTED CLASS

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You can track all active APARs for this component.

APAR status

  • Closed as program error.

Error description

  • Error Message: When attempting to load a corrupted class the JVM
    will either crash (stacktrace below) or generate an Out Of
    Memory Error
    .
    Stack Trace: memcpy ()
    readAttributes ()
    readMethods ()
    j9bcutil_readClassFileBytes ()
    j9bcutil_createRomClassEndian ()
    j9bcutil_createRomClass ()
    callDynamicLoader ()
    internalLoadROMClass ()
    
    createROMClassFromClassFile ()
    internalDefineClass ()
    defineClassCommon ()
    .
    

Local fix

  • Ensure class is not corrupted
    

Problem summary

  • The problem is caused by a corrupted class file.
    

Problem conclusion

  • This defect will be fixed in:
    6.0.0 SR10
    5.0.0 SR12 FP3
    .
    The JVM has been updated to be more vigilant when attempting to
    load class files
    .
    To obtain the fix:
    Install build 20110212 or later
    

Temporary fix

Comments

APAR Information

  • APAR number

    IV00030

  • 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

    2011-05-09

  • Closed date

    2011-05-09

  • Last modified date

    2011-07-14

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

    IV00020

  • 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 PSY

       UP



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Document information


More support for:

Runtimes for Java Technology
Virtual Machine

Software version:

5.0

Reference #:

IV00030

Modified date:

2011-07-14

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