I'm also having the same simple type restriction problem on jboss-4.0.5.GA with code generated by wstools on a doc/literal wsdl. I found an article on the wiki on annotations. http://wiki.jboss.org/wiki/Wiki.jsp?page=JBossXB_JBXBAnnotations The "jbxb:value" section shows how to specify you own marshalling and unmarshalling code. But I'm not sure if this is implemented yet. It didn't work for me. View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=3985281#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...