It looks like the problem I had was related to not using my package name in the wstools-config.xml file. The "type-namespace" attribute didn't match the package name of my data objects. It looks like it needs to be the form type-namespace="http://<package name in reverse order>/jaws". Otherwise, wstools will create this namespace which will contain duplicate complextypes in the WSDL. View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4025979#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...