XML

try {
     final XMLOutputter serializer = new XMLOutputter();
     serializer.setFormat(Format.getPrettyFormat());
     serializer.output(xmlDep, new FileOutputStream(fileName));
} catch (IOException e) {
     System.err.println(e);
}

try {
  final SAXBuilder parser = new SAXBuilder(false);
  final Document doc = parser.build(filename);
  return doc.getRootElement();
} catch (JDOMException e) {
  e.printStackTrace();
} catch (IOException e) {
  e.printStackTrace();
}