On JDK 1.3 under Solaris, a modal dialog does not change to non-modal when Dialog.setModal(false) is called. Instead it forever stays modal. Under win32 the Dialog successfully changes from modal to non-modal and back to modal repeatedly.

It would make sense to not be able to change the modality of a Dialog while it is visible. However when it is NOT visible, the modality should be modifiable via the Dialog.setModal(boolean) method.


//---------------------------ModalTest.java-----------------------------
// Run the test case, and a Frame comes up.
// (1) Click on the "test" button and a Dialog, initially non-modal, pops up.
// (2) Click on the Dialog's "OK" button and it goes away.
// (3) Click on the "test" button again, and the Dialog pops up as modal.
// (4) Click on the Dialog's "OK" button and it goes away.
// (5) Click on the "test" button again, and the Dialog pops up as
// modal - it should have been non-modal.
// (6) Every time the Dialog is shown, it is now modal even if
// setModal(false) has been called.

import java.awt.*;
import java.awt.event.*;

public class ModalTest extends Frame implements ActionListener
{
    boolean modal = false;
    TestDialog testDialog;

    public static void main(String argv[])
    {
        ModalTest Test = new ModalTest();
    }

    public ModalTest()
    {
        setSize (200,200);
        addWindowListener(new WindowAdapter() {
            public void windowClosing(WindowEvent evt) {
                System.exit(0);
            }
        });
        Button button = new Button("test");
        button.addActionListener(this);
        button.setSize(10,5);
        add(button);
        setVisible(true);
        testDialog = new TestDialog(this);
    }

    public void actionPerformed(ActionEvent e)
    {
        testDialog.setModal(modal);
        System.out.println("modal setting is now = " + modal);
        modal = !modal;
        testDialog.setVisible(true);
    }

    public class TestDialog extends Dialog implements ActionListener
    {
        protected Button okButton;

        public TestDialog(Frame parent)
        {
            super(parent);

            okButton = new Button("OK");
            okButton.addActionListener(this);
            add(okButton);

            setLocation(400,400);
            setSize(100,100);
        }

        public void actionPerformed(ActionEvent e)
        {
            setVisible(false);
        }
    }
}