code: public <T> XBAutoMap<T> autoMapEmptyDocument(final Class<T> valueType) {
          Document document = xMLFactoriesConfig.createDocumentBuilder().newDocument();
          return createAutoMapForDocument(valueType, document);
      }
docs: Create an empty document and bind an XBAutoMap to it.
  
  @param valueType
  component type of map
  @return an empty Map view to the document