Zmiana obrazka po kliknięciu przycisku JButton

Witam,
mam problem z ustawienie zmiany obrazu dla przycisku, po kliknięciu innego przycisku. Jeśli klikam przycisk, obrazek się zmienia na obu przyciskach, z tą wada że na przycisku który chce zmienić, zmienia się dopiero po najechaniu na niego myszą.

package Game_1;

import java.awt.Dimension;
import java.awt.Graphics;
import java.awt.GridLayout;
import java.awt.Image;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.image.ImageObserver;

import javax.swing.ImageIcon;
import javax.swing.JButton;
import javax.swing.JPanel;

import DisplayWindow.MyFrame;

@SuppressWarnings("serial")
public class bottonPanel extends JPanel {
	
	public static final int HEIGHT = LeftPanel.HEIGHT / 4 - 10;
    public static final int WIDTH = LeftPanel.WIDTH - 10;
	public static boolean sound;
	
	public static String closeImageIcon = "res/game1/CloseButton.png";
    public static ImageIcon closeIcon;
	
    private JButton Close;
    private JButton Sound;
    
    public bottonPanel() {
    	Close = new closeButton();
    	Sound = new soundButton();
    	
    	setLayout(new GridLayout(1, 2));
        setPreferredSize(new Dimension(WIDTH, HEIGHT));
        setVisible(true);
    	
        add(Close);
        add(Sound);
    }
    
    static class closeButton extends JButton implements ActionListener{

    	static Image image;
        static ImageObserver imageObserver;
        
        closeButton() {
        	super();
        	closeIcon = new ImageIcon(closeImageIcon);
            image = closeIcon.getImage();
            imageObserver = closeIcon.getImageObserver();
            addActionListener(this);
        }
        public void paint( Graphics g ) {
            super.paint( g );
            g.drawImage(image,  0 , 0 , MyFrame.WIDTH / 4, MyFrame.HEIGHT / 4, imageObserver);
        }
        
        @Override
        public void actionPerformed(ActionEvent e) {
        	MyFrame.cardLayout.show(MyFrame.cardPanel, "0");
        }
    }
    
    public static class soundButton extends JButton implements ActionListener{

    	public boolean sound = true;
    	
    	Image image;
        ImageObserver imageObserver;
        
        public soundButton() {
        	super();
        	ImageIcon icon = new ImageIcon("res/game1/SoundOn.png");
    		image = icon.getImage();
            imageObserver = icon.getImageObserver();
            addActionListener(this);
        }
        public void paint( Graphics g ) {
            super.paint( g );
            g.drawImage(closeButton.image,  0 , 0 , MyFrame.WIDTH / 4, MyFrame.HEIGHT / 4, imageObserver);
        }
        
        @Override
        public void actionPerformed(ActionEvent e) {
        	if (sound == true)
        	{
        		sound = false;
        		//ImageIcon icon = new ImageIcon("res/game1/SoundOff.png");
        		closeImageIcon = "res/game1/SoundOff.png";
        		closeButton.image = closeIcon.getImage();
        		closeButton.imageObserver = closeIcon.getImageObserver();
        		new closeButton();
        		
        	} else {
        		sound = true;
        		//ImageIcon icon = new ImageIcon("res/game1/SoundOn.png");
        		closeImageIcon = "res/game1/SoundOn.png";
        		closeButton.image = closeIcon.getImage();
        		closeButton.imageObserver = closeIcon.getImageObserver();
        		new closeButton();
        	}
        }
    }

}
 

Przemilczę swoja opinię o powyższym kodzie.
Najprostszy sposób zmiany ikony na przycisku:

private JButton toChange = new JButton(new ImageIcon("Open.gif"));
...
changer = new JButton(...);
changer.addActionListener(...);
...
public void actionPerformed(ActionEvent ae)
{
    toChange.setIcon(new ImageIcon("Home.gif"));
}