code:     protected void _initFactories(XMLInputFactory xmlIn, XMLOutputFactory xmlOut)
      {
          // Better ensure namespaces get built properly, so:
          xmlOut.setProperty(XMLOutputFactory.IS_REPAIRING_NAMESPACES, Boolean.TRUE);
          // and for parser, force coalescing as well (much simpler to use)
          xmlIn.setProperty(XMLInputFactory.IS_COALESCING, Boolean.TRUE);
      }
  
      /**
       * Note: compared to base implementation by {@link JsonFactory},
       * here the copy will actually share underlying XML input and
       * output factories, as there is no way to make copies of those.
       * 
       * @since 2.1
       */
      @Override
  