[jboss-user] [Installation, Configuration & DEPLOYMENT] - Re: LinkageError... and yet everything seems fine

[jaikiran]

Well, that's the reason!

Looks like some of the classes are being loaded from JBoss's jar (the one from server/default/lib) and some from your application's package.

I would suggest, enabling classloader scoping for your EAR, which should solve this problem. Just add a jboss-app.xml file in the META-INF folder of the EAR with something like this:

  | <jboss-app>
  | 
  | 	 <loader-repository>
  | 		org.myapp:loader=MyAppClassLoader
  | 		<loader-repository-config>java2ParentDelegation=false</loader-repository-config>
  | 	 </loader-repository>
  | 
  |   
  | </jboss-app>

More details can be found at http://wiki.jboss.org/wiki/Wiki.jsp?page=ClassLoadingConfiguration


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