Wait cursor shows up as a resize cursor in certain situations

Question

Strange behavior and my question are below in the comments. I intend to test this program on JRE 1.6 when I get a chance.
package project2;
import java.awt.Cursor;
import java.awt.Dimension;
import java.awt.Rectangle;
import java.awt.event.ActionEvent;
import javax.swing.AbstractAction;
import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JOptionPane;
// It looks like I found a bug in JRE 1.5
// The program below shows a main frame in the top left of the screen
// Press the Dialog button to bring up a dialog box.
// Upon closing the dialog box,
// the program will install a wait cursor on the main frame,
// wait 5 seconds, print some text to standard output,
// and finally restore the cursor.
// Run the program.  Call up the dialog box.
// Move the dialog box to outside the main frame --
// that is, no parts of the dialog box and main frame should overlap.
// Close the dialog box.  Right away move the cursor over the main frame.
// Notice that the cursor is not an hourglass,
// but rather a resize cursor.
// Now shutdown the program and run it again.  Call up the dialog box.
// Move the dialog box to inside the main frame.
// Upon pressing OK or Cancel, we do see the wait cursor for 5 seconds.
// If we call up the dialog box again and move outside the main frame,
// then upon closing the dialog box the hourglass appears.
// However, if we shutdown and restart then the resize cursor appears.
// Why do we only see the hourglass when the dialog box is
// inside the main frame?
public class MyFrameDisposeDialogFirst extends JFrame
   private JButton jButton1 = new JButton();
   public MyFrameDisposeDialogFirst()
      try
         jbInit();
      catch (Exception e)
         e.printStackTrace();
   private void jbInit() throws Exception
      this.getContentPane().setLayout(null);
      this.setSize(new Dimension(400, 300));
      jButton1.setBounds(new Rectangle(80, 60, 73, 22));
      this.getContentPane().add(jButton1, null);
      jButton1.setAction(new AbstractAction("Dialog") {
         public void actionPerformed(ActionEvent event)
            try
               String[] choices = new String[] { "One", "Two", "Three", "Four" };
               Object result = JOptionPane.showInputDialog(MyFrameDisposeDialogFirst.this, "Username", "Title", JOptionPane.QUESTION_MESSAGE, null, choices, choices[1]);
               MyFrameDisposeDialogFirst.this.setCursor(Cursor.getPredefinedCursor(Cursor.WAIT_CURSOR));
               try
                  Thread.sleep(5000);
               catch (InterruptedException e)
               System.out.println(result);
            finally
               MyFrameDisposeDialogFirst.this.setCursor(Cursor.getPredefinedCursor(Cursor.DEFAULT_CURSOR));
   public static void main(String[] args)
      JFrame frame = new MyFrameDisposeDialogFirst();
      frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
      frame.setVisible(true);
}

Answer 1

It's the old story of not respecting the EDT and [Concurrency in Swing|http://java.sun.com/docs/books/tutorial/uiswing/concurrency/index.html]. Try this (could be better but I tried to keep the changes to a minimum):import java.awt.Cursor;
import java.awt.Dimension;
import java.awt.Rectangle;
import java.awt.event.ActionEvent;
import javax.swing.AbstractAction;
import javax.swing.Action;
import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JOptionPane;
import javax.swing.SwingUtilities;
import javax.swing.Timer;
public class MyFrameDisposeDialogFirst extends JFrame
   private JButton jButton1 = new JButton();
   private Action action = new AbstractAction() {
      public void actionPerformed(ActionEvent e) {
         MyFrameDisposeDialogFirst.this.setCursor(Cursor.getPredefinedCursor(Cursor.DEFAULT_CURSOR));
   private Timer timer = new Timer(5000, action);
   public MyFrameDisposeDialogFirst()
      jbInit();
   private void jbInit()
      this.getContentPane().setLayout(null);
      this.setSize(new Dimension(400, 300));
      jButton1.setBounds(new Rectangle(80, 60, 73, 22));
      this.getContentPane().add(jButton1, null);
      timer.setRepeats(false);
      jButton1.setAction(new AbstractAction("Dialog") {
         public void actionPerformed(ActionEvent event)
            String[] choices = new String[] { "One", "Two", "Three", "Four" };
            Object result = JOptionPane.showInputDialog(MyFrameDisposeDialogFirst.this, "Username",
                  "Title",JOptionPane.QUESTION_MESSAGE, null, choices, choices[1]);
            SwingUtilities.invokeLater(new Runnable() {
               public void run() {
                  MyFrameDisposeDialogFirst.this.setCursor(Cursor.getPredefinedCursor(Cursor.WAIT_CURSOR));
                  timer.start();
            System.out.println(result);
   public static void main(String[] args)
      final JFrame frame = new MyFrameDisposeDialogFirst();
      frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
      SwingUtilities.invokeLater(new Runnable() {
         public void run() {
            frame.setVisible(true);
}db