IBM Support

PM86697: FOLLOWUP TO PM73096. HANDLE ADDITIONAL CASES OF ARCHIVE MEMORY LEAKS.

Fixes are available

8.0.0.10: WebSphere Application Server V8.0 Fix Pack 10
7.0.0.37: WebSphere Application Server V7.0 Fix Pack 37
8.5.5.5: WebSphere Application Server V8.5.5 Fix Pack 5
8.5.5.6: WebSphere Application Server V8.5.5 Fix Pack 6
8.0.0.11: WebSphere Application Server V8.0 Fix Pack 11
8.5.5.7: WebSphere Application Server V8.5.5 Fix Pack 7
7.0.0.39: WebSphere Application Server V7.0 Fix Pack 39
8.5.5.8: WebSphere Application Server V8.5.5 Fix Pack 8
8.0.0.12: WebSphere Application Server V8.0 Fix Pack 12
8.5.5.9: WebSphere Application Server V8.5.5 Fix Pack 9
7.0.0.41: WebSphere Application Server V7.0 Fix Pack 41
8.5.5.10: WebSphere Application Server V8.5.5 Fix Pack 10
8.5.5.11: WebSphere Application Server V8.5.5 Fix Pack 11
8.0.0.13: WebSphere Application Server V8.0 Fix Pack 13
7.0.0.43: WebSphere Application Server V7.0 Fix Pack 43
8.5.5.12: WebSphere Application Server V8.5.5 Fix Pack 12
8.0.0.14: WebSphere Application Server V8.0 Fix Pack 14
8.5.5.13: WebSphere Application Server V8.5.5 Fix Pack 13
7.0.0.45: WebSphere Application Server V7.0 Fix Pack 45
8.0.0.15: WebSphere Application Server V8.0 Fix Pack 15
7.0.0.45: Java SDK 1.6 SR16 FP60 Cumulative Fix for WebSphere Application Server
7.0.0.37: Java SDK 1.6 SR16 FP3 Cumulative Fix for WebSphere Application Server
7.0.0.39: Java SDK 1.6 SR16 FP7 Cumulative Fix for WebSphere Application Server
7.0.0.41: Java SDK 1.6 SR16 FP20 Cumulative Fix for WebSphere Application Server
7.0.0.43: Java SDK 1.6 SR16 FP41 Cumulative Fix for WebSphere Application Server
8.5.5.14: WebSphere Application Server V8.5.5 Fix Pack 14

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APAR status

  • Closed as program error.

Error description

  • Followup to PM73096 to handle additional cases of memory
    leaks relating to the archive file dynamic class loader.
    

Local fix

  • N/A - PM73096 was a valid APAR, but incomplete.
    

Problem summary

  • ****************************************************************
    * USERS AFFECTED:  All users of IBM WebSphere Application      *
    *                  Server using the java beans introspector    *
    ****************************************************************
    * PROBLEM DESCRIPTION: Use of the java beans introspector      *
    *                      (class java.beans.Introspector) can     *
    *                      cause an OutOfMemory error.             *
    ****************************************************************
    * RECOMMENDATION:                                              *
    ****************************************************************
    Use of the java beans introspector (class
    java.beans.Introspector) on classes loaded by archive file
    dynamic class loaders (for example, WarFileDynamicClassLoader
    and RarFileDynamicClassLoader, both subclasses of
    ArchiveFileDynamicClassLoader) can cause an OutOfMemory error.
    The memory leak occurs because of a static cache of
    introspected classes which is held by the java beans
    introspector.  Because of the use of a static cache, explicit
    calls to a release API of the introspector must be made to
    avoid memory leaks.
    A particular usage of the introspector occurs from code for
    installing Connector modules. For example:
    at org/eclipse/jst/j2ee/commonarchivecore/internal/util/
    ArchiveFileDynamicClassLoader.loadClass
    (ArchiveFileDynamicClassLoader.java:400)
    at java/lang/ClassLoader.loadClass(ClassLoader.java:626)
    at java/lang/Class.forNameImpl(Native Method)
    at java/lang/Class.forName(Class.java:172)
    at java/beans/Introspector.loadBeanInfo
    (Introspector.java:371)
    at java/beans/Introspector.getExplicitBeanInfo
    (Introspector.java:305)
    at java/beans/Introspector.getBeanInfoImpl
    (Introspector.java:270)
    at java/beans/Introspector.getBeanInfoImplAndInit
    (Introspector.java:389)
    at java/beans/Introspector.getBeanInfo(Introspector.java:171)
    at com/ibm/ws/management/application/J2CAppUtils
    .getDefinedProperties(J2CAppUtils.java:397)
    at com/ibm/ws/management/component/InstallRAHelper
    .loadBeanPropertyWithType(InstallRAHelper.java:250)
    at com/ibm/ws/management/component/InstallRAHelper
    .loadBeanProperty(InstallRAHelper.java:239)
    

Problem conclusion

Temporary fix

Comments

APAR Information

  • APAR number

    PM86697

  • Reported component name

    WEBS APP SERV N

  • Reported component ID

    5724H8800

  • Reported release

    700

  • Status

    CLOSED PER

  • PE

    NoPE

  • HIPER

    NoHIPER

  • Special Attention

    NoSpecatt

  • Submitted date

    2013-04-09

  • Closed date

    2013-08-09

  • 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

    WEBS APP SERV N

  • Fixed component ID

    5724H8800

Applicable component levels

  • R700 PSY

       UP

  • R800 PSY

       UP

  • R850 PSY

       UP



Document information

More support for: WebSphere Application Server
General

Software version: 7.0

Reference #: PM86697

Modified date: 15 October 2014