Hi Kalvin, I'm not sure about the jbossws stack and the associated wstools (which are used by the eclipse plugin), but the underlying webservice logic in the plugin *should* support polymorphism as you describe.. ie you should be able to import a WSDL containing a portType with the same operation name taking different arguments, I'm unsure about return-type polymorphism only though.. if you can mail me your WSDL I can validate this for you.. (ole(a)eviware.com) kind regards! /Ole eviware.com View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=3981407#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...