Thanks for your reply karypid. I've managed to finally build a succesfull web service. Two important things: - changed several JBoss libs from place - Found two really useful web pages: - http://www.theregister.co.uk/2007/01/23/ejb_web_services/ - http://thesmallpotato.blogspot.com/2007/06/jdk-16-jboss-420-ejb3-web-serv... Simple things that Red Hat JBoss developers usually don't do: simple things that work. Starter developers don't want complex things. They(we) want to start by simple things and then start evolving. JBoss docs never do this. Sergio View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4167980#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...