WAit

public abstract class Wait<T> extends BukkitRunnable {

    T remain;
    JavaPlugin main;

    public Wait(JavaPlugin main, long ticks, long re, T t){
        this.main = main;
        this.remain = t;
        runTaskTimer(main, ticks, re);

    }

    @Override
    public void run() {
        ondone();
        cancel();
    }

    public abstract void ondone();
}