How to open a modal dialog in Java?

Question

I'm trying to display a modal dialog in front of an Applet.

My current solution fetches the root frame like so:

Frame getMyParent() {
    Container parent = getParent();
    while (!(parent instanceof Frame)) {
        parent = ((Component)parent).getParent();
    }
    return (Frame)parent;
}

And creates the dialog as follows:

public OptionsDialog(MainApplet applet, boolean modal) {
    super(applet.getMyParent(), "options", modal);
    // ....

However often this shows the modal dialog below the frame, though the modal behaviour works correctly.

How can this be fixed?

EDIT: I should have clarified before, for Java versions 1.5 and above.

Answer 1

Use null insterad of applet.getMyParent()

Answer 2

JDialog dialog = new JDialog(SwingUtilities.windowForComponent(this));
dialog.setModal(true);
dialog.setSize(200, 200);
dialog.setVisible(true);