Generally speaking I would see a common api living in jbossws-common. Then we should think about bridging from it to the underlaying stack implementation. Perhaps we could provide handlers doing the required conversions (to read/write the right objects in the MessageContext) and ask users to install them if they want to use the common api? View the original post : http://www.jboss.org/index.html?module=bb&op=viewtopic&p=4208709#... Reply to the post : http://www.jboss.org/index.html?module=bb&op=posting&mode=reply&a...