IZ94325: JIT COMPILER PRODUCES UNEXPECTED VALUE IN BYTE TO INTEGER CONVER SION

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You can track all active APARs for this component.

APAR status

  • Closed as program error.

Error description

  • Error Message: ArrayIndexOutOfBound exception was thrown.
    .
    Stack Trace: java.lang.ArrayIndexOutOfBoundsException
    
     at com.ibm.xml.xci.serializer.XOutputWriter8Bit.write(Unknown
    Source)
     at
    com.ibm.xml.xci.xlxp.cdata.XMLStringCData.write(XMLStringCData.j
    ava:1055)
    
     at com.ibm.xml.xci.serializer.XSerializer.addText(Unknown
    Source)
     at
    com.ibm.xml.xci.serializer.fixer.FixerNamespaces.addText(Unknown
    Source)
    
     at
    com.ibm.xml.xci.serializer.fixer.FixerRequiredPrefixes.addText(U
    nknown Source)
    
     at
    com.ibm.xml.xci.dp.base.AbstractDelegatingCursor.addText(Unknown
    Source)
    
     at com.ibm.xml.xci.dp.util.copy.Copier.copyNode(Unknown Source)
    
     at
    com.ibm.xml.xci.dp.util.copy.Copier.copySequence2Content(Unknown
    Source)
    
     at com.ibm.xml.xci.dp.util.copy.Copier.copyContents(Unknown
    Source)
     at
    com.ibm.xml.xci.dp.util.copy.Copier.copySequence2Content(Unknown
    Source)
    
     at com.ibm.xml.xci.dp.util.copy.Copier.copyContents(Unknown
    Source)
     at
    com.ibm.xml.xci.dp.util.copy.Copier.copySequence2Content(Unknown
    Source)
    
     at com.ibm.xml.xci.dp.util.copy.Copier.copyContents(Unknown
    Source)
     at
    com.ibm.xml.xci.dp.util.copy.Copier.copySequence2Content(Unknown
    Source)
    
     at com.ibm.xml.xci.dp.util.copy.Copier.copy(Unknown Source)
    
     at com.ibm.xml.xci.dp.util.copy.Copier.copy(Unknown Source)
    
     at com.ibm.xml.xci.dp.util.copy.Copier.copy(Unknown Source)
    .
    

Local fix

  • The workaround for this issue is to exclude the method from
    which the incorrect value/exception is being generated from.
    -Xjit:exclude={<method signature>}
    

Problem summary

  • The JIT compiler performed an incorrect optimization on a byte
    to integer conversion operation.
    

Problem conclusion

  • This defect will be fixed in:
    6.0.0 SR10
    5.0.0 SR12FP5
    .
    The JIT compiler was fixed to correct the behavior that led to
    the incorrect conversion.
    .
    To obtain the fix:
    Install build 20101217 or later
    

Temporary fix

Comments

APAR Information

  • APAR number

    IZ94325

  • 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

    2011-02-04

  • Closed date

    2011-02-28

  • Last modified date

    2011-02-28

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

    IZ94324

  • 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 PSN

       UP



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Document information


More support for:

Runtimes for Java Technology
Just In Time (JIT) Compiler

Software version:

5.0

Reference #:

IZ94325

Modified date:

2011-02-28

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