IBM Support

IV62883: JDMPVIEW HEAPDUMP COMMAND REPORTS ERRORS

Subscribe to this APAR

By subscribing, you receive periodic emails alerting you to the status of the APAR, along with a link to the fix after it becomes available. You can track this item individually or track all items by product.

Notify me when this APAR changes.

Notify me when an APAR for this component changes.

APAR status

  • Closed as program error.

Error description

  • Error Message: When producing a PHD heapdump file from a system
    dump, the jdmpview heapdump command reports a large number of
    errors, for example:Writing PHD format heapdump into
    DUMP.JVM.D140513.T133549.X001.phdWrote 23016240 objects and
    55095 classes and encountered 23071336 errors
    .
    Stack Trace: N/A
    .
    The PHD heapdump file produced is very small, and contains only
    a header with JVM version string.
    

Local fix

  • Produce a heapdump direct from the JVM, using the -Xdump:heap
    option.
    

Problem summary

  • The problem is caused when reading Java object data from a
    system dump
    

Problem conclusion

  • The jdmpview command and the DTFJ API have been updated to
    correctly read the object data
    .
    This APAR will be fixed in the following Java Releases:
       6 R1 SR8 FP2   (6.1.8.2)
       7 R1 SR2       (7.1.2.0)
       7    SR8       (7.0.8.0)
    .
    Contact your IBM Product's Service Team for these Service
    Refreshes and Fix Packs.
    For those running stand-alone, Java maintenance is available
    from:
               https://www.ibm.com/developerworks/java/jdk/
    

Temporary fix

Comments

APAR Information

  • APAR number

    IV62883

  • Reported component name

    J9 COMMON CODE

  • Reported component ID

    620700127

  • Reported release

    260

  • Status

    CLOSED PER

  • PE

    NoPE

  • HIPER

    NoHIPER

  • Special Attention

    NoSpecatt

  • Submitted date

    2014-07-23

  • Closed date

    2014-07-23

  • Last modified date

    2015-07-10

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

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

    PI23070 PI38457 PI39491 PI44540

Fix information

  • Fixed component name

    J9 COMMON CODE

  • Fixed component ID

    620700127

Applicable component levels

  • R260 PSY

       UP

  • R270 PSY

       UP



Document information

More support for: Runtimes for Java Technology
Virtual Machine

Software version: 260

Reference #: IV62883

Modified date: 10 July 2015