code: public static DispatchRule newInstance(String name, String dispatcher, String contentType, String encoding) {
          return newInstance(name, dispatcher, contentType, encoding, null);
      }
docs: Returns a new instance of DispatchRule.
  
  @param name the dispatch name
  @param dispatcher the id or class name of the view dispatcher bean
  @param contentType the content type
  @param encoding the character encoding
  @return the dispatch rule