UserChangePasswordResource resource = new UserChangePasswordResource();
resource.setUserId(username);
resource.setOldPassword(oldPassword);
resource.setNewPassword(newPassword);
UserChangePasswordRequest request = new UserChangePasswordRequest();
request.setData(resource);
XStreamRepresentation representation = new XStreamRepresentation(xstream, "", MediaType.APPLICATION_XML);
representation.setPayload(request);
return RequestFacade.doPostForStatus(serviceURI, representation);