*Quickminer.java*

package Miner;

import Miner.task.Mine;
import org.powerbot.script.PollingScript;
import org.powerbot.script.Script;
import org.powerbot.script.rt4.ClientContext;

import java.util.ArrayList;
import java.util.List;

@Script.Manifest(name = "QuickMiner", description="tut", properties ="Client-4; author:GodOrDevil topic=999;")



public class QuickMiner extends PollingScript<ClientContext> {

    List<Task> taskList = new ArrayList<Task>();


    @Override
    public void start(){
        taskList.add(new Mine(ctx));

    }

    @Override
    public void poll() {
        System.out.println("test1");

        for (Task task : taskList) {
            if (task.activate()) {
                task.execute();
                break;
            }

        }
    }
}

*Task.java*
package Miner;

import org.powerbot.script.rt4.ClientAccessor;
import org.powerbot.script.rt4.ClientContext;

public abstract class Task extends ClientAccessor {

    public Task(ClientContext ctx) {
        super(ctx);
    }
    public abstract boolean activate();

    public abstract void execute();
}

*Mine.java*
package Miner.task;


import Miner.Task;
import org.powerbot.script.Condition;
import org.powerbot.script.rt4.ClientContext;
import org.powerbot.script.rt4.GameObject;
import java.util.concurrent.Callable;

public class Mine extends Task {

    final static int ROCK_IDS[] = { 1390 , 1391 };

    public Mine(ClientContext ctx) {
        super(ctx);
    }

    @Override
    public boolean activate() {
        System.out.println("debug2");
        return ctx.players.local().animation()==-1 && ctx.inventory.select().count()<28;
    }

    @Override
    public void execute() {
        System.out.println("debug3");
        GameObject rockToMine = ctx.objects.select().id(ROCK_IDS).nearest().poll();
        rockToMine.interact("Mine");
        System.out.println("debug4");

        Condition.wait(new Callable<Boolean>(){

            @Override
            public Boolean call() throws Exception {
                System.out.println("debug5");
                return ctx.players.local().animation()!=-1;
            }
        }, 200, 10);
    }
}