@Override
    public void channelInactive(ChannelHandlerContext context) throws Exception {
      try {
        final Channel channel = context.channel();
        final UUID processId = channel.attr(PROCESS_ID_KEY).get();
        if (processId != null) {
          cleanSessions(processId);
          myConnections.remove(processId);
        }
      }
      finally {
        super.channelInactive(context);
      }
    }
@Override
    public void channelInactive(ChannelHandlerContext context)