docs: private Document loadNonValidating(InputStream is) {
      Document document;
      StringBuffer sb = new StringBuffer();
      BufferedReader in = null;
      try {
        in = new BufferedReader(new InputStreamReader(is, "UTF8"));
        String line = null;
        while ((line = in.readLine()) != null) {
          sb.append(line + "\n");
        }
        String xmlData = sb.toString();
        xmlData = xmlData.replace("<!DOCTYPE nitf " + "SYSTEM \"http://www.nitf.org/" + "IPTC/NITF/3.3/specification/dtd/nitf-3-3.dtd\">", "");
        document = parseStringToDOM(xmlData, "UTF-8");
        return document;
      } catch (UnsupportedEncodingException e) {
        e.printStackTrace();
        System.out.println("Error loading inputstream.");
      } catch (FileNotFoundException e) {
        e.printStackTrace();
        System.out.println("Error loading file inputstream.");
      } catch (IOException e) {
        e.printStackTrace();
        System.out.println("Error loading file inputstream.");
      } finally {
        if (in != null)
          try {
            in.close();
          } catch (IOException e) {
            e.printStackTrace();
          }
      }
      return null;
    }