code: public void sendReply(final HttpResponseStatus status,
                          final StringBuilder buf) {
      sendBuffer(status, ChannelBuffers.copiedBuffer(buf.toString(),
                                                     CharsetUtil.UTF_8));
    }
docs: Sends an HTTP reply to the client.
  @param status The status of the request (e.g. 200 OK or 404 Not Found).
  @param buf The content of the reply to send.