Sorry for the late response. I am living in the NW and haven't had power since Thursday. Currently, I don't include the thirdparty-all.jar because it is not needed to compile/test against seam. I actually haven't create a package yet to build seam using maven (which would probably be the best approach to making sure all the dependencies are correct). View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=3994808#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...