IBM Support

IV26968: CRASH OR INCORRECT FINALIZATION WHEN CONSTRUCTORS STORE INTO AUT O SLOT 0

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APAR status

  • Closed as program error.

Error description

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

Local fix

Problem summary

  • If the constructor for a finalizable object stores into local
    variable zero (where a reference to the receiver object is
    stored), the wrong object may be registered for finalization.
    

Problem conclusion

  • This defect will be fixed in:
    7.0.0 SR1
    6.0.1 SR1
    6.0.0 SR11
    .
    The JIT and VM were fixed to use the same technique used to
    ensure that synchronized methods unlock the correct monitor even
    when the receiver reference is destroyed by a store to local
    variable zero.
    

Temporary fix

Comments

APAR Information

  • APAR number

    IV26968

  • Reported component name

    JIT

  • Reported component ID

    620700124

  • Reported release

    260

  • Status

    CLOSED PER

  • PE

    NoPE

  • HIPER

    NoHIPER

  • Special Attention

    NoSpecatt

  • Submitted date

    2012-08-24

  • Closed date

    2012-08-24

  • Last modified date

    2012-08-29

  • 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

  • R600 PSY

       UP

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Document Information

Modified date:
29 August 2012