public class Connector {
    private Plugin instance;
    public Connector(Plugin instance) {
        this.instance = instance;
        instance.getServer().getMessenger().registerOutgoingPluginChannel(instance, "BungeeCord");
    }

    public void connect(Player player, String name) {
        ByteArrayDataOutput out = ByteStreams.newDataOutput();
        out.writeUTF("Connect");
        out.writeUTF(name);
        player.sendPluginMessage(instance, "BungeeCord", out.toByteArray());
    }
}