xpath.setNamespaceURIs(MessageConstants._nsMap);
List allTaskInputElements = xpath.selectNodes(request);
xpath = DocumentHelper.createXPath("//*");
List allBody = xpath.selectNodes(request);
int size = allBody.size();
LOG.debug(allTaskInputElements.size()+":"+size);
for (int i = 0; i < size; ++i) {
Node node = (Node)allBody.get(i);
if (! allTaskInputElements.contains(node)) {