PM85353: ADMINISTRATIVE PROGRAMS FAIL TO LAUNCH DUE TO A CLASS LOADING ER ROR

8.0.0.7: WebSphere Application Server V8.0 Fix Pack 7
8.0.0.8: WebSphere Application Server V8.0 Fix Pack 8
8.0.0.9: WebSphere Application Server V8.0 Fix Pack 9
8.0.0.10: WebSphere Application Server V8.0 Fix Pack 10
8.0.0.11: WebSphere Application Server V8.0 Fix Pack 11
8.0.0.12: WebSphere Application Server V8.0 Fix Pack 12
8.0.0.13: WebSphere Application Server V8.0 Fix Pack 13
8.0.0.14: WebSphere Application Server V8.0 Fix Pack 14
8.0.0.15: WebSphere Application Server V8.0 Fix Pack 15

APAR status

• Closed as program error.

Error description

• A java.lang.NoClassDefFoundError occurs indicating
  class
  org.eclipse.emf.ecore.util.EcoreValidator$EGenericTypeBuilder
  while creating a server instance in the configuration
  respository
  

Local fix

Problem summary

• ****************************************************************
  * USERS AFFECTED:  All users of IBM WebSphere Application      *
  *                  Server                                      *
  ****************************************************************
  * PROBLEM DESCRIPTION: Commands developed over the             *
  *                      Administrative Command Framework may    *
  *                      encounter class loading errors when     *
  *                      running.                                *
  ****************************************************************
  * RECOMMENDATION:                                              *
  ****************************************************************
  Commands developed over the Administrative Command Framework
  may encounter class loading errors while running due to the
  precedence of the classes on the class path of the
  underlying context class loader.  Here is an example of an
  Administrative Command implementation that fails with a
  NoClassDefFoundError.
  Create LDAP repository - result:
  [java.lang.NoClassDefFoundError:
  org.eclipse.emf.ecore.util.EcoreValidator$EGenericTypeBuilder]
  java.lang.NoClassDefFoundError:
  org.eclipse.emf.ecore.util.EcoreValidator$EGenericTypeBuilder
  at java.lang.J9VMInternals.verifyImpl(Native Method)
  at java.lang.J9VMInternals.verify(J9VMInternals.java:93)
  at java.lang.J9VMInternals.initialize(J9VMInternals.java:170)
  at
  com.ibm.ws.wim.SchemaManager.loadModelFromXSD(SchemaManager.java
  :622)
  at
  com.ibm.ws.wim.SchemaManager.initialize(SchemaManager.java:335)
  at com.ibm.ws.wim.SchemaManager.<init>(SchemaManager.java:250)
  at
  com.ibm.ws.wim.SchemaManager.singleton(SchemaManager.java:258)
  This error can occur whenever the Command implementation
  classes depend on a package visible on the underlying context
  class loader, and the package occurs twice in the class path
  of the loader.  This can cause the implementation classes to
  link to an unexpected version of the package.
  To resolve this problem, you may now specify the following
  system property to the Java process that hosts the failing
  command:
  -Dws.ext.search.plugins.reverse=true
  The system property will reverse the order of the class path
  of the underlying context classloader and cause the expected
  versions of the classes to link with Administrative Command
  implementation classes.
  

Problem conclusion

• To reverse the order of classes on the class loader underlying
  AdminCommand class loading failures, apply APAR PM85353 and
  specify system property -Dws.ext.search.plugins.reverse=true
  to the Java process that hosts the command.
  
  The fix for this APAR is currently targeted for inclusion in
  fix pack 8.0.0.7 and the fix pack following 8.5.0.2.  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

• R800 PSY

     UP

• R850 PSY

     UP