docs: public Node loadContent(final Session session, final URL contentDef) {
  
          final SAXParserFactory factory = this.getSAXParserFactory();
          try {
              factory.setFeature("http://apache.org/xml/features/disallow-doctype-decl", true);
              final SAXParser parser = factory.newSAXParser();
              final InputSource source = new InputSource(contentDef.openStream());
              final XMLContentHandler handler = new XMLContentHandler(session);
              parser.parse(source, handler);
              return handler.getRootNode();
          } catch (ParserConfigurationException | SAXException | IOException e) {
              throw new AssertionError("Loading Content to JCR Repository failed", e);
          }
      }