docs: void setChannel(Channel channel) throws InvalidArgumentException {
  
          if (null != this.channel) {
              throw new InvalidArgumentException(format("Can not add peer %s to channel %s because it already belongs to channel %s.",
                      name, channel.getName(), this.channel.getName()));
          }
          logger.debug(format("%s setting channel to %s, from %s", toString(), "" + channel, "" + this.channel));
  
          this.channel = channel;
          this.channelName = channel.getName();
  
      }