code: public void sendReply(final String buf) {
      sendBuffer(HttpResponseStatus.OK,
                 ChannelBuffers.copiedBuffer(buf, CharsetUtil.UTF_8));
    }
docs: Sends an HTTP reply to the client.
  <p>
  This is equivalent of
  <code>{@link #sendReply(HttpResponseStatus, StringBuilder)
  sendReply}({@link HttpResponseStatus#OK
  HttpResponseStatus.OK}, buf)</code>
  @param buf The content of the reply to send.