public static Element getDom(InputStream is) 
{
                           
    Element element = null;
    DOMParser parser = new DOMParser();
    InputSource input;
    try {
      input = new InputSource(is);
      input.setEncoding("UTF-8");
      parser.parse(input);
      int i = 0;
      while (! (parser.getDocument().getChildNodes().item(i) instanceof Element)) {
       i++;
      } 
      element = (Element)parser.getDocument().getChildNodes().item(i);
    } catch (FileNotFoundException e) {
      e.printStackTrace(LogUtil.getWarnStream(LOG));
    } catch (SAXException e) {
      e.printStackTrace(LogUtil.getWarnStream(LOG));
    } catch (IOException e) {
      e.printStackTrace(LogUtil.getWarnStream(LOG));
    }
    return element;
}

Returns parsed dom tree or null if any error

 public static  void saveDom(OutputStream os,
    Element e) 
{
    DOMSource source = new DOMSource(e);
    TransformerFactory transFactory = TransformerFactory.newInstance();
    Transformer transformer;
    try {
      transformer = transFactory.newTransformer();
      transformer.setOutputProperty("indent", "yes");
      StreamResult result = new StreamResult(os);
      transformer.transform(source, result);
      os.flush();
    } catch (UnsupportedEncodingException e1) {
      e1.printStackTrace(LogUtil.getWarnStream(LOG));
    } catch (IOException e1) {
      e1.printStackTrace(LogUtil.getWarnStream(LOG));
    } catch (TransformerConfigurationException e2) {
      e2.printStackTrace(LogUtil.getWarnStream(LOG));
    } catch (TransformerException ex) {
      ex.printStackTrace(LogUtil.getWarnStream(LOG));
    }
}

save dom into ouputstream