docs: private void bind(Bootstrap bootstrap, Iterator<String> ifaces, int port, CompletableFuture<Void> future) {
      if (ifaces.hasNext()) {
        String iface = ifaces.next();
        bootstrap.bind(iface, port).addListener((ChannelFutureListener) f -> {
          if (f.isSuccess()) {
            log.info("UDP server listening for connections on {}:{}", iface, port);
            channel = (DatagramChannel) f.channel();
            bind(bootstrap, ifaces, port, future);
          } else {
            log.warn("Failed to bind TCP server to port {}:{} due to {}", iface, port, f.cause());
            future.completeExceptionally(f.cause());
          }
        });
      } else {
        future.complete(null);
      }
    }