docs: private static Class<? extends ServerChannel> epollServerChannelType() {
      try {
        Class<? extends ServerChannel> serverSocketChannel =
            Class
                .forName("io.netty.channel.epoll.EpollServerSocketChannel")
                .asSubclass(ServerChannel.class);
        return serverSocketChannel;
      } catch (ClassNotFoundException e) {
        throw new RuntimeException("Cannot load EpollServerSocketChannel", e);
      }
    }