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PK79218: EGL Fixed record field saved in HTTP session contains back refer ences to container and program

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You can track all active APARs for this component.

 

APAR status

  • Closed as program error.

Error description

  • Environment:
    - Operating System: Microsoft Windows XP
      - Product name: Rational Business Developer 7.1.0.2
    
    Description of problem:
    EGL Fixed record field saved in HTTP session contains back refer
    ences to container and program
    
    Step to reproduce:
    Put an attribute of an EGL record into HTTP session using J2eeli
    b.
    
    In below sample, session will have a Java Integer object with ke
    y 'overlayRecord.age'. And another EGL object representing the e
    ntire record(and referencing Program) in session with a secrete
    key.
    
    --------Sample Code-----------
    dataItem AGE int end
    record OverLayRecord type BasicRecord
     10 age AGE;
    end
    
    J2EELib.setSessionAttr('overlayRecord.age', overlayRecord.age);
    
    In an heapdump com/ibm/javart/OverlayItem holds on to an EGL rec
    ord which holds on to EGL pagehandler. This pagehandler can cont
    ain references to more data.
    
    Workaround:
    None
    

Local fix

Problem summary

  • When storing EGL data in a J2EE session, references to other
    portions of the Java runtime were preventing garbage
    collection of those objects. This could potentially cause an
    OutOfMemoryError.
    

Problem conclusion

  • The implementation has been changed to no longer store these
    references in the session map, greatly reducing the memory
    usage.
    

Temporary fix

Comments

APAR Information

  • APAR number

    PK79218

  • Reported component name

    RATL BUS DEV

  • Reported component ID

    5724S5000

  • Reported release

    710

  • Status

    CLOSED PER

  • PE

    NoPE

  • HIPER

    NoHIPER

  • Special Attention

    NoSpecatt

  • Submitted date

    2009-01-22

  • Closed date

    2009-03-20

  • Last modified date

    2009-03-20

  • 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

    RATL BUS DEV

  • Fixed component ID

    5724S5000

Applicable component levels

  • R710 PSN

       UP

[{"Business Unit":{"code":"BU058","label":"IBM Infrastructure w\/TPS"},"Product":{"code":"SSMQ79","label":"Rational Business Developer"},"Component":"","ARM Category":[],"Platform":[{"code":"PF025","label":"Platform Independent"}],"Version":"7.1","Edition":"","Line of Business":{"code":"LOB35","label":"Mainframe SW"}}]

Document Information

Modified date:
20 March 2009