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IV62236: NATIVE MEMORY LEAK WITH RUNTIME.EXEC AFTER APPLYING APAR IV65817

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You can track all active APARs for this component.

 

APAR status

  • Closed as program error.

Error description

  • Error Message: While running a java process that periodically
    runs non-java processes a memory leak is observed. Running with
    -Xcheck:jni shows:JVMJNCK071W JNI warning: Memory at 0xE3972370
    acquired by GetByteArrayElements was not released before
    returning from native. This is probably a memory
    leak.JVMJNCK078W Warning detected in
    java/lang/UNIXProcess.forkAndExec
    .
    Stack Trace: N/A
    .
    

Local fix

Problem summary

  • This leakage was introduced by the Oracle bug 5049299 as it
    allocate a new memory  using GetByteArrayElements but not
    releasing it using ReleaseByteArrayElements.
    

Problem conclusion

  • The JDK has been updated to include the release of the memory
    using ReleaseByteArrayElements.
    .
    This APAR will be fixed in the following Java Releases:
       7    SR8       (7.0.8.0)
       7 R1 SR2       (7.1.2.0)
    .
    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

    IV62236

  • Reported component name

    JAVA CLASS LIBS

  • Reported component ID

    620700130

  • Reported release

    700

  • Status

    CLOSED PER

  • PE

    NoPE

  • HIPER

    NoHIPER

  • Special Attention

    NoSpecatt

  • Submitted date

    2014-07-03

  • Closed date

    2014-10-07

  • Last modified date

    2014-10-15

  • 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 CLASS LIBS

  • Fixed component ID

    620700130

Applicable component levels

  • R700 PSY

       UP

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Document Information

Modified date:
21 February 2022