Not quite helpful info. But I got a similar error sometime back. I re arranged the jar files here and there and it got resolved magically. Just to make you feel better - you are not alone in this whole jar conflicts thing. I can vividly recall the countless nights resolving the correct jar files, just because some other version of the jar is lying somewhere. View the original post : http://www.jboss.org/index.html?module=bb&op=viewtopic&p=4232290#... Reply to the post : http://www.jboss.org/index.html?module=bb&op=posting&mode=reply&a...