JAX-WS supports mapping of INOUT and OUT and header parameters for document/literal wrapped that can occur in any order. In order to support this ParameterMetaData, and its wrapped children need to store a parameter index, and the endpoint invocation code needs to be modified use this. The reason I am mentioning this is that these changes are numerous and I want to avoid conflicts, so please ignore this particular spec conformance problem, I will handle it. Also if anyone needs to do any heavy modifications of the UnifiedMetaDataModel, please let me know so we can synchronize our work. I expect to have these changes committed next week. Thanks, -Jason View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=3964511#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...