MulticolorWorld

import javafx.animation.KeyFrame;
import javafx.animation.Timeline;
import javafx.event.ActionEvent;
import javafx.event.EventHandler;
import javafx.geometry.Rectangle2D;
import javafx.stage.Screen;
import javafx.stage.Stage;
import javafx.util.Duration;

public class NotificationWindow {

MulticolorWorld

public void testMethod(){
	Task<Object> task = new Task<Object>(){
		@Override
		protected Object call() throws Exception {
		Object object = //ここの取得に時間がかかります
		return object;
		}
		@Override
		protected void succeeded(){
			//getValue()使っていろいろ

MulticolorWorld

public class HogeController{
    static ListView<Label> listview1;
    static ListView<Label> listview2;
    
    static void setlistview1(String string){
        Label label = new Label(string);
        listview1.getItems().add(label);
    }
    
    static void setlistview2(String string){