code: @NotNull
      public static DocumentBuilder createDocumentBuilder() {
          try {
              final DocumentBuilderFactory factory = DocumentBuilderFactory.newInstance();
              factory.setNamespaceAware(true);
              return factory.newDocumentBuilder();
          } catch (final ParserConfigurationException ex) {
              throw new RuntimeException("Couldn't create document builder", ex);
          }
      }
docs: Creates a namespace aware document builder.
  
  @return New instance.