PI52661: STOPPING AN APPLICATION WHILE USING A SINGLE SHARED CLASS LOADER CAUSES AN ARRAYINDEXOUTOFBOUNDSEXCEPTION

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
7.0.0.43: 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
8.5.5.17: 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

• When the application class loader policy is set to Single, if
  one of the applications is stopped while the other applications
  are running, the following exception is generated:
  
  java.lang.ArrayIndexOutOfBoundsException
  at com.ibm.ws.classloader.CompoundClassLoader
  .findResource(Compou nd ClassLoader.java:1019)
  at com.ibm.ws.classloader.CompoundClassLoader
  .getResource(CompoundClassLoader.java:979)
  at com.ibm.ws.classloader.CompoundClassLoader
  .getResourceAsStream(C ompoundClassLoader.java:1156)
  

Local fix

• Using a separate class loader for each application avoids the
  issue or do not stop the application while other applications
  are still running when using single class loader policy.
  

Problem summary

• ****************************************************************
  * USERS AFFECTED:  All users of IBM WebSphere Application      *
  *                  Server                                      *
  ****************************************************************
  * PROBLEM DESCRIPTION: Stopping an application while using a   *
  *                      single shared class loader causes an    *
  *                      ArrayIndexOutOfBoundsException          *
  ****************************************************************
  * RECOMMENDATION:                                              *
  ****************************************************************
  WebSphere Application Server allows users to configure their
  server to use a single shared class loader for all
  applications, rather than a separate class loader for each
  application.  If an application is stopped while other
  applications are using the loader, this can cause an exception
  when the operations attempt to traverse classpath entries as
  they're being removed.
  

Problem conclusion

• The shared class loader no longer removes classpath entries
  upon application stop.
  
  The fix for this APAR is currently targeted for inclusion in
  fix packs 7.0.0.43, 8.0.0.13, and 8.5.5.10.  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