code: protected void writeText(IoSession session, String text, ProtocolDecoderOutput out) {
          out.write(text);
      }
docs: By default, this method propagates the decoded line of text to
  {@code ProtocolDecoderOutput#write(Object)}.  You may override this method to modify
  the default behavior.
  
  @param session  the {@code IoSession} the received data.
  @param text  the decoded text
  @param out  the upstream {@code ProtocolDecoderOutput}.