Setting cursor after a dialog closes

[Manuel Godbert]

Hello,

I am experiencing problems trying to change the cursor.
My code first opens a JFrame, then a modal dialog is opened hiding a part of my JFrame and finally some long task is performed after the dialog closes.
I'd like to set a wait cursor on my JFrame before starting the long task but the modal dialog thing seems to stop it from working properly.
I know how I could process my long task in a separate thread or postpone my task in the Event Queue, but this heavy to code (my real long task can be interrupted many times by other dialog windows).

This is my test case:

import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
 
public class TestCursor extends JFrame {
public static void main(String[] args) {
new TestCursor();
}
public TestCursor() {
// GUI
JButton b = new JButton("Open dialog");
getContentPane().setLayout(new BorderLayout());
getContentPane().add(b,"South");
JTextArea p = new JTextArea();
getContentPane().add(p,"Center");

// Listeners
addWindowListener(new WindowAdapter() {
public void windowClosing(WindowEvent e) {
System.exit(0);
}
});
b.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
JOptionPane.showInputDialog("test");
paint(getGraphics());
setCursor(WAIT_CURSOR);

// My long task
long time = System.currentTimeMillis();
while(System.currentTimeMillis()-time<5000);

setCursor(DEFAULT_CURSOR);
}
});

// Show
setSize(500,500);
setLocation(new Point(500,200));
show();
}
}

Thanks to tell me if you know any workaround for my problem !

[Manuel Godbert]

Finally I found out the solution, setting the cursor on the glasspane of the frame instead of the frame itself.