I have an API that accepts an interface as a parameter. I would like to preserve this from a WSDL perspective because it reduces the number of fields from the concrete class by an order of 10. Now, obviously, by default I get a serialization error from JBossWS when it tries to instantiate this interface. However, if JBossWS could know to just instantiate the concrete class instead, it should work great. I have edited the jaxrpc-mapping.xml file, but that has no effect. Is there a way to do this? Nate View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4026049#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...