throw new NullPointerException(_MESSAGES.get("NullDocument"));
Element root = XmlUtils.createElement(factory, WssgConstants.ADD_QNAME);
EndpointReference epr = getMemberEPR();
XmlUtils.setElement(root, WssgConstants.MEMBER_EPR_QNAME, epr.toXML());
WsResourceClient member = new WsResourceClient(epr);
Element content = getContent();
//