code: protected String formatOutputMessageInternal(final String message) {
          try {
              return EncodingUtils.urlEncode(message);
          } catch (final Exception e) {
              LOGGER.warn("Unable to encode URL " + message, e);
          }
          return message;
      }
docs: Encodes the message in UTF-8 format in preparation to send.
  
  @param message Message to format and encode
  @return The encoded message.