PQ86588: java.lang.ClassCastException after reinstalling an application
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Abstract
When an application is stopped and re-started, the ORB creates a new ClientDelegate object, while some existing objects still have references to the old ClientDelegate object.
 
Download Description
ERROR DESCRIPTION:
When an application is stopped and re-started, the ORB creates a new ClientDelegate object, while some existing objects still have references to the old ClientDelegate object. The two objects conflict, allowing calls to go to the wrong underlying servant object resulting in ClassCastExceptions or
"Delegate not set" messages followed by further application failures.

Sample test case:

  • App1: Has one Stateless EJB and One Servlet
  • App2: Has One EJB Servlet App1 invokes the EJB in App1 this EJB in turn invokes EJB in App2.


If you try to stop and start the App2, you get a ClassCastException.


USERS AFFECTED: All users of IBM Java™ SDK packaged with WebSphere Application Server V5.0.2.

PROBLEM CONCLUSION:
This has been fixed in Java SDK defect sov 68352 and sov 70899. The fix will be included in Java SDK 1.3.1 SR7.

SUPERSEDES: PQ85782
 
Prerequisites
Please review the readme.txt
 
URL LANGUAGE SIZE(Bytes)
1.3.1 SR6 SDK Java™ Tech Edition for WebSphere® US English 25000000
 
 
Installation instructions
Please review the readme.txt for detailed installation instructions.
 
URL LANGUAGE SIZE(Bytes)
README US English 3134
 
Download package
What is DD?
DOWNLOAD RELEASE DATE LANGUAGE SIZE(Bytes) Download Options
PQ86588 3/24/2004 US English 632126 FTP DD
 
Technical support
Contact 1-800-IBM-SERV or visit WebSphere Application Server Support site on the web at:
http://www.ibm.com/software/webservers/appserv/was/support/
 
Cross Reference information
Segment Product Component Platform Version Edition
Application Servers Runtimes for Java Technology Java SDK
Problems (APARs) fixed
PQ85782, PQ86588, PQ85578
 
 


Document Information


Product categories: Software > Application Servers > Distributed Application & Web Servers > WebSphere Application Server > Object Request Broker (ORB)
Operating system(s): Windows
Software version: 5.0.2.4
Software edition:
Reference #: 4006587
IBM Group: Software Group
Modified date: Apr 28, 2004