PM81026: The ClassNotFoundException exception hides the original exception when you use the XIO transport.

APAR status

• Closed as program error.

Error description

• When you use the XIO transport, sometimes exceptions occur on
  the WebSphere eXtreme Scale container server that are not
  signaled correctly to clients. If exceptions are generated on
  the container server that represents classes not present in
  the eXtreme Scale client, then the client gets a
  ClassNotFoundException exception during its attempt to signal
  the original exception to the API caller, which obfuscates the
  cause of the original exception.
  
  This APAR ensures that the ClassNotFoundException does not
  obfuscate the original exception and the client receives
  correct exception information in the form of an
  UnkownException with the correct message text.
  

Local fix

Problem summary

• ****************************************************************
  * USERS AFFECTED:  WebSphere eXtreme Scale customers who run   *
  *                  applications whose server-side application  *
  *                  code takes unhandled exceptions.            *
  ****************************************************************
  * PROBLEM DESCRIPTION: Unhandled server exceptions that are    *
  *                      not found in the client class path      *
  *                      cause the original exception to be      *
  *                      hidden.                                 *
  ****************************************************************
  * RECOMMENDATION:                                              *
  ****************************************************************
  Unhandled exceptions on the server that are not found in the
  client class path cause the original exception to be hidden.
  

Problem conclusion

• The exception information is retained when throwing the
  original unhandled exception.
  

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

  WS EXTREME SCAL

• Fixed component ID

  5724X6702

Applicable component levels

• R860 PSY

     UP