Regarding the @RespectBinding/RespectBindingFeature, the JAXWS 2.1 spec says that all required wsdl:extensions MUST be supported and honored by the implementation unless a specific wsdl:extension has been explicitely disabled via a WebServiceFeature. This is currently not supported as there's no webservice feature implemented having a corresponding wsdl extension. Perhaps ws-addressing could be an example with UsingAddressing. We should nevertheless implement this mechanism.