code: public static Reader reader(Format type, InputStream in, DefaultReadHandler<?> customDefaultHandler) {
          return reader(type, in, null, customDefaultHandler);
      }
docs: Creates a reader instance.
  @param type the format to read in
  @param in the input stream to read from
  @param customDefaultHandler a DefaultReadHandler to use for processing
  encoded values for which there is no read handler
  @return a reader