showInternalxxxDialog doesn't work (for me)

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#10953

From: Carlos Javier Castro Pena
Date: Wed, 28 Jul 1999 00:00

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I have been trying for a long time to display Internal Dialogs, but I
wasn't successful. Usualy I get this exception:

java.lang.RuntimeException: JOptionPane: parentComponent does not have a

valid parent
 at com.sun.java.swing.JOptionPane.createInternalFrame(Compiled Code)
 at com.sun.java.swing.JOptionPane.showInternalOptionDialog(Compiled
Code)
 at
ittc.phoenix.phclient.ClientFrame.menuHelpAbout_actionPerformed(ClientFrame.java:2084)

 at
ittc.phoenix.phclient.ClientFrame$2.actionPerformed(ClientFrame.java:205)

 at java.awt.MenuItem.processActionEvent(MenuItem.java:436)
 at java.awt.MenuItem.processEvent(MenuItem.java:400)
 at java.awt.MenuComponent.dispatchEventImpl(Compiled Code)
 at java.awt.MenuComponent.dispatchEvent(MenuComponent.java:169)
 at java.awt.EventDispatchThread.run(EventDispatchThread.java:84)


The code is:

JOptionPane.showInternalOptionDialog(null,"MESSAGE",
                                            "TITLE",

JOptionPane.OK_CANCEL_OPTION,
                                            JOptionPane.ERROR_MESSAGE,
                                            null, //icon
                                            null,
                                            null);

The class:

public class ClientFrame extends JFrame


I currently use JDK 1.1.8 + Swing 1.1.1 . How should I solve this
problem?

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From: Carlos Javier Castro Pena <jcaspen@ittc.ukans.edu>
Subject: showInternalxxxDialog doesn't work (for me)
Date: 1999/07/28
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