* <p>The default behavior simply returns an empty body.</p>
*/
protected String generateRequestBody() {
if (target != null) {
XMLPrinter printer = new XMLPrinter();
printer.writeXMLHeader();
printer.writeElement("D", "DAV:", "update", XMLPrinter.OPENING);
printer.writeElement("D", "version", XMLPrinter.OPENING);
printer.writeElement("D", "href", XMLPrinter.OPENING);
printer.writeText(target);
printer.writeElement("D", "href", XMLPrinter.CLOSING);