Weblogic with Hibernate gives error of named queries ? urgent

Question

I have deployed my application on Weblogic 11g, it gives Hibernate Names query exception.
My Application uses Hibernate 3.0 and it works successfully on
Tomcat
JBOSS
Glassfish
But , on weblogic it gives Named query exception .Please any once can help.
I have put antlr-3.0 jar file in lib folder of Weblogic domain folder , and have added path of it in setDomainEnv.cmd file but still Hibernate gives error of named query.

Answer 1

You can follow the steps presented here: http://middlewaremagic.com/weblogic/?p=5861
The reason for the failure is the antlr library, which is already loaded through the system classpath, so you
need to tell WebLogic which version is should load as Hibernate uses its own implementation of the antlr library.
Adding it to the domain/lib directory does not help as jar files placed in this directory are added at the end of the system classpath at the end.
Note that it is not good practice to place jar files in the domain/lib directory.