docs: public static Document parse(Reader reader, boolean validating, boolean namespaceAware, boolean allowDocTypeDeclaration)
              throws SAXException, IOException, ParserConfigurationException {
          DocumentBuilderFactory factory = FactorySupport.createDocumentBuilderFactory();
          factory.setNamespaceAware(namespaceAware);
          factory.setValidating(validating);
          setQuietly(factory, XMLConstants.FEATURE_SECURE_PROCESSING, true);
          setQuietly(factory, "http://apache.org/xml/features/disallow-doctype-decl", !allowDocTypeDeclaration);
          DocumentBuilder documentBuilder = factory.newDocumentBuilder();
          return documentBuilder.parse(new InputSource(reader));
      }