protected SOAPFault getSOAPFault(String content) {
   try {
     Document doc = XmlUtils.parseXml(content);
     SOAPEnvelope e =
         (SOAPEnvelope) SOAPFactory.newInstance().createElement(doc.getDocumentElement());
     SOAPFault fault = e.getBody().getFault();
     return fault;
   } catch (Exception e) {
     return null;
   }
 }