Всплывающие сообщения из трея ( Java )

import java.awt.*;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;

/**
 * Created by root on 23.05.2016.
 */
public class Main {
    public static void main(String[] args) throws AWTException {
        PopupMenu popup = new PopupMenu();
        MenuItem exitItem = new MenuItem("Выход");
        exitItem.addActionListener(new ActionListener() {
            @Override
            public void actionPerformed(ActionEvent e) {
                System.exit(0);
            }
        });

        popup.add(exitItem);
        SystemTray systemTray = SystemTray.getSystemTray();
        Image image  = Toolkit.getDefaultToolkit().getImage("https://hysterical.ru/wp-content/uploads/2016/05/vk_icon.png");
        TrayIcon trayIcon = new TrayIcon(image, "VKApi", popup);
        trayIcon.setImageAutoSize(true);
        systemTray.add(trayIcon);
        trayIcon.displayMessage("VKApi", "text", TrayIcon.MessageType.INFO);
//        System.exit(0);
    }
}

import java.awt.*;

import java.awt.event.ActionEvent;

import java.awt.event.ActionListener;

/**

* Created by root on 23.05.2016.

public class Main {

public static void main(String[] args) throws AWTException {

PopupMenu popup = new PopupMenu();

MenuItem exitItem = new MenuItem("Выход");

exitItem.addActionListener(new ActionListener() {

@Override

public void actionPerformed(ActionEvent e) {

System.exit(0);

}

});

popup.add(exitItem);

SystemTray systemTray = SystemTray.getSystemTray();

Image image = Toolkit.getDefaultToolkit().getImage("https://hysterical.ru/wp-content/uploads/2016/05/vk_icon.png");

TrayIcon trayIcon = new TrayIcon(image, "VKApi", popup);

trayIcon.setImageAutoSize(true);

systemTray.add(trayIcon);

trayIcon.displayMessage("VKApi", "text", TrayIcon.MessageType.INFO);

// System.exit(0);

}