Waiting a JInternalFrame to be closed before opening a new one

Question

Hello all
I would like to wait a JInternalFrame to be closed by the user before opening a new one.
Here is the sample code :
               openRemote.getWindow().show();
               Thread t = new Thread(new Runnable() {
                         public void run() {
                              try {
                                   synchronized(openRemote.getWindow()) {
                                        System.out.println("Wait");
                                        openRemote.getWindow().wait();
                                        System.out.println("Closed");
                                   System.out.println("1111");
                                   //ChoosePhantomAction cpa = new ChoosePhantomAction();
                                   //cpa.actionPerformed(null);
                                   String phant = (String)JOptionPane.showInternalInputDialog(iFrame,"Phantom's name:", "Phantom selection",JOptionPane.PLAIN_MESSAGE,null,null, null);
                                   System.out.println("2222");
                              } catch (java.lang.InterruptedException ie) {
                                   ie.printStackTrace();
                              } catch (Exception exp) {
                                   exp.printStackTrace();
               t.start();The first code line shows a JInternalFrame.
I can see the JOptionPane on screen when i close the first frame but the message "22222" is never displayed. And i really can't understand why. Can it be due to the thread that uses Swing objects or the event dispatcher ?
Thanks

Answer 1

There are 2 files.
The main one :
import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
import javax.swing.event.*;
public class SSCCE extends JPanel {
    static JFrame frame;
     private JDesktopPane desktop = new JDesktopPane();
     private JInternalFrame iFrame = new JInternalFrame();
     public SSCCE() {
          setLayout(new BorderLayout());
          add(desktop, BorderLayout.CENTER);
          setPreferredSize(new Dimension(800,600));
          iFrame.setPreferredSize(new Dimension(300,200));
          JPanel panelCentre = new JPanel();
          panelCentre.setLayout(new BorderLayout());
          panelCentre.add(getMenusBar(), BorderLayout.NORTH);
          iFrame.getContentPane().add(panelCentre, BorderLayout.CENTER);
          iFrame.pack();
          iFrame.setVisible(true);
          desktop.add(iFrame);
    public JMenuBar getMenusBar() {
          JMenuBar menuBar = new JMenuBar();
          JMenu clickMenu = (JMenu) menuBar.add(new JMenu("Click here..."));
          createMenuItem(clickMenu, "...and now here", "click", new ClickAction());
          return menuBar;
    public JMenuItem createMenuItem(JMenu menu, String label,
                                             String accessibleDescription, Action action) {
        JMenuItem mi = (JMenuItem) menu.add(new JMenuItem(label));
          mi.getAccessibleContext().setAccessibleDescription(accessibleDescription);
          mi.addActionListener(action);
          if(action == null) {
               mi.setEnabled(false);
          return mi;
    public static JFrame createFrame() {
          JFrame frame = new JFrame();
          WindowListener l = new WindowAdapter() {
                    public void windowClosing(WindowEvent e) {
                         System.exit(0);
          frame.addWindowListener(l);
          return frame;
    class ClickAction extends AbstractAction {
        public void actionPerformed(ActionEvent e) {
               final InternalPopUp ip1 = new InternalPopUp(desktop, "Please close to open 2nd window");
               ip1.show();
               Thread t = new Thread(new Runnable() {
                         public void run() {
                              try {
                                   synchronized(ip1) {
                                        System.out.println("Wait");
                                        ip1.wait();
                                        System.out.println("Closed");
                                   System.out.println("1111");
                                   String phant = (String)JOptionPane.showInternalInputDialog(iFrame,"Enter something", "Enter something and check if 2222 is displayed in the console",JOptionPane.PLAIN_MESSAGE,null,null, null);
                                   System.out.println("2222");
                              } catch (java.lang.InterruptedException ie) {
                                   ie.printStackTrace();
                              } catch (Exception exp) {
                                   exp.printStackTrace();
               t.start();
    public static void main(String s[]) {
          frame = createFrame();
          SSCCE sscce = new SSCCE();
          frame.setTitle("Sample test");
          frame.getContentPane().add(sscce, BorderLayout.CENTER);
          frame.pack();
          frame.setLocation(0,0);
          frame.setResizable(true);
          frame.setVisible(true);
}The second one :
import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
import javax.swing.event.*;
import javax.swing.border.TitledBorder;
class InternalPopUp extends JInternalFrame {
    private int PREFERRED_WIDTH = 250;
    private int PREFERRED_HEIGHT = 80;
     private JDesktopPane desktop = null;
     class PopupListener implements InternalFrameListener {
          JInternalFrame parent = null;          
          public PopupListener(JInternalFrame parent) {
               this.parent = parent;
          public void internalFrameClosing(InternalFrameEvent e) {
          public void internalFrameClosed(InternalFrameEvent e) {
               desktop.repaint();
               synchronized(e.getSource()) {
                    e.getSource().notifyAll();
          public void internalFrameOpened(InternalFrameEvent e) {
          public void internalFrameIconified(InternalFrameEvent e) {
          public void internalFrameDeiconified(InternalFrameEvent e) {
          public void internalFrameActivated(InternalFrameEvent e) {
          public void internalFrameDeactivated(InternalFrameEvent e) {
     public InternalPopUp(JDesktopPane desktop, String text) {
          this.desktop = desktop;
          addInternalFrameListener(new PopupListener(this));
          setPreferredSize(new Dimension(PREFERRED_WIDTH,PREFERRED_HEIGHT));
          JPanel panelCentre = new JPanel();
          JButton close = new JButton(text);
          close.addActionListener(new ActionListener() {
                    public void actionPerformed(ActionEvent e) {
                         hidePopup();
          panelCentre.add(close);
          getContentPane().add(panelCentre);
          pack();
          desktop.add(this, JLayeredPane.POPUP_LAYER);
     public void hidePopup() {
          //super.hide();
          try {
               setClosed(true);
          } catch (Exception e) {
          desktop.repaint();
}I never see the "2222" sting in the console ...