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

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
8.5.5.15: WebSphere Application Server V8.5.5 Fix Pack 15
8.5.5.14: WebSphere Application Server V8.5.5 Fix Pack 14
8.5.5.17: WebSphere Application Server V8.5.5 Fix Pack 17
8.5.5.20: WebSphere Application Server V8.5.5.20
8.5.5.18: WebSphere Application Server V8.5.5 Fix Pack 18
8.5.5.19: WebSphere Application Server V8.5.5 Fix Pack 19
8.5.5.16: WebSphere Application Server V8.5.5 Fix Pack 16
8.5.5.21: WebSphere Application Server V8.5.5.21

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

• A code update was made to release classes loaded by the
  archive class loader from the java beans introspector cache.
  
  This problem is a continuation of the APAR PM73096 (see
  http://www-01.ibm.com/support/docview.wss?uid=swg1PM73096).
  This updates covers additional cases not covered by the
  initial PM73096 update.  The PM73096 update is correct, but
  additional scenarios are fixed by this APAR.
  
  The fix for this APAR is targeted for inclusion in fix packs
  7.0.0.37, 8.0.0.10, and 8.5.5.5.  Please refer to the
  
  Recommended Updates page for delivery information:
  http://www.ibm.com/support/docview.wss?rs=180&uid=swg27004980
  

Temporary fix

Comments

APAR Information

• 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