PM30754: INCORRECT ARRAYINDEXOUTOFBOUNDSEXCEPTION FROM COMPILED CODE.

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You can track all active APARs for this component.

APAR status

  • Closed as program error.

Error description

  • Error Message: When used the DB2 JDBC driver version 3.61,
    ArrayIndexOutOfBoundsException was seen to be thrown from the
    compiled code.
    .
    Stack Trace: java.lang.ArrayIndexOutOfBoundsException
    
    at com.ibm.db2.jcc.t4.cb.a(cb.java(Compiled Code))
    
    at com.ibm.db2.jcc.t4.cb.a(cb.java:1886)
    
    at com.ibm.db2.jcc.t4.cb.m(cb.java:726)
    
    at com.ibm.db2.jcc.t4.cb.i(cb.java:246)
    
    at com.ibm.db2.jcc.t4.cb.c(cb.java:54)
    
    at com.ibm.db2.jcc.t4.q.c(q.java:44)
    
    at com.ibm.db2.jcc.t4.rb.j(rb.java:147)
    
    at com.ibm.db2.jcc.am.bn.ib(bn.java:2048)
    
    at com.ibm.db2.jcc.am.cn.b(cn.java:3855)
    
    at com.ibm.db2.jcc.am.cn.cc(cn.java:678)
    
    at com.ibm.db2.jcc.t4.l.cc(l.java:115)
    
    at com.ibm.db2.jcc.am.cn.executeQuery(cn.java:652)
    ...
    .
    None.
    

Local fix

  • JITC_COMPILEOPT="COMPILING(SIGNATURE):SKIP{com/ibm/db2/jcc/t4/cb
    }{a(Lcom/ibm/db2/jcc/t4/d;ZZ)V}"
    

Problem summary

  • The problem was due to a bad array bounds related optimization
    in the JIT compiler which incorrectly checks the arraylength
    againsst itself, and throws the bounds exception in case found
    to be equal or more.
    

Problem conclusion

  • This defect will be fixed in:
    1.4.2 SR13 FP9
    .
    The incorrect behavior of array bounds check optimization
    is fixed and the array bounds are now correctly checked.
    .
    To obtain the fix:
    Install build 20110202 or later
    

Temporary fix

  • Use the following JIT compiler option:
    
    JITC_COMPILEOPT="SKIP{com/ibm/db2/jcc/t4/cb}{a(Lcom/ibm/db2/jcc/
    t4/d;ZZ)V}
    

Comments

APAR Information

  • APAR number

    PM30754

  • Reported component name

    JAVA(1.3/1.4 CO

  • Reported component ID

    5648C9800

  • Reported release

    42A

  • Status

    CLOSED PER

  • PE

    NoPE

  • HIPER

    NoHIPER

  • Special Attention

    NoSpecatt

  • Submitted date

    2011-01-19

  • Closed date

    2011-05-17

  • Last modified date

    2011-05-17

  • 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(1.3/1.4 CO

  • Fixed component ID

    5648C9800

Applicable component levels

  • R14A PSY

       UP



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Document information


More support for:

z/OS family

Software version:

1.4.2

Reference #:

PM30754

Modified date:

2011-05-17

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