AFAIK this is feature. You should receive the same string on client side when you send XML fragment as string from server. Similarly you should receive the same XML fragment string on server side when it was sent from client. IOW serialization shouldn't affect you at all when you use just JAXWS API. View the original post : http://www.jboss.org/index.html?module=bb&op=viewtopic&p=4247144#... Reply to the post : http://www.jboss.org/index.html?module=bb&op=posting&mode=reply&a...