W3CDOMStreamWriter writer = new W3CDOMStreamWriter();
writer.writeStartElement("wst", "RequestSecurityToken", namespace);
writer.writeNamespace("wst", namespace);
writer.writeStartElement("wst", "RequestType", namespace);
writer.writeCharacters(namespace + "/Cancel");
writer.writeEndElement();
writer.writeStartElement("wst", "CancelTarget", namespace);
Element el = null;
if (attachTokenDirectly) {
el = token.getToken();