MuleClient client = new MuleClient();
DocumentBuilderFactory dbf = DocumentBuilderFactory.newInstance();
dbf.setNamespaceAware(true);
Document soap = dbf.newDocumentBuilder().parse(ClassUtils.getResourceAsStream("helloRequest.soap", getClass()));
Map props = new HashMap();
UMOMessage result = client.send("vm://pxe.in", new DOMSource(soap.getDocumentElement()), props);
assertNotNull(result);
StringWriter w = new StringWriter();
XMLWriter writer = new XMLWriter(w);
writer.write(result.getPayload());
String xml = w.toString();