code: public KQueueDatagramChannelConfig setReusePort(boolean reusePort) {
          try {
              ((KQueueDatagramChannel) channel).socket.setReusePort(reusePort);
              return this;
          } catch (IOException e) {
              throw new ChannelException(e);
          }
      }
docs: Set the SO_REUSEPORT option on the underlying Channel. This will allow to bind multiple
  {@link KQueueSocketChannel}s to the same port and so accept connections with multiple threads.
  
  Be aware this method needs be called before {@link KQueueDatagramChannel#bind(java.net.SocketAddress)} to have
  any affect.