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From "Oleg Khaschansky (JIRA)" <j...@apache.org>
Subject [jira] Created: (HARMONY-1699) [classlib][swing] NPE in BasicRootPaneUI caused by the JFileChooser.
Date Wed, 04 Oct 2006 15:08:19 GMT
[classlib][swing] NPE in BasicRootPaneUI caused by the JFileChooser.
--------------------------------------------------------------------

                 Key: HARMONY-1699
                 URL: http://issues.apache.org/jira/browse/HARMONY-1699
             Project: Harmony
          Issue Type: Bug
          Components: Classlib
         Environment: Windows XP
            Reporter: Oleg Khaschansky
            Priority: Minor


To reproduce do the following steps:
1. Run the testcase (listed below).
2. In the FileChooser select  the "File Name" text field.
3. Type in the name of any existing directory.
4. Press "Enter" key.

As a result the NPE is thrown and user events are no more processed by the frame when FileChooser
dialog is closed. On RI this works fine, no exceptions.
-------------------------------------------------------------------------
The testcase:
import javax.swing.*;

public class Test {
   public static void main(String[] args) {
       JFrame f = new JFrame();
       f.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
       f.setSize(100, 100);
       f.setVisible(true);
       JButton hello = new JButton("Hello");
       f.getContentPane().add(hello);
       f.getRootPane().setDefaultButton(hello);
       new JFileChooser().showOpenDialog(f);
    }
}
-------------------------------------------------------------------------

Harmony output:

java.lang.reflect.InvocationTargetException
	at java.awt.EventQueue.invokeAndWait(EventQueue.java:74)
	at java.awt.Toolkit.unsafeInvokeAndWait(Toolkit.java:48)
	at java.awt.Dialog.showImpl(Dialog.java:256)
	at java.awt.Dialog.show(Dialog.java:246)
	at java.awt.Component.show(Component.java:3239)
	at java.awt.Component.setVisible(Component.java:321)
	at javax.swing.JFileChooser.showDialog(JFileChooser.java:51)
	at javax.swing.JFileChooser.showOpenDialog(JFileChooser.java:58)
	at ttt.main(ttt.java:14)
Caused by: java.lang.NullPointerException
	at javax.swing.plaf.basic.BasicRootPaneUI$DefaultButtonAction.isEnabled(BasicRootPaneUI.java:70)
	at javax.swing.SwingUtilities.notifyAction(SwingUtilities.java:455)
	at javax.swing.JComponent.processKeyBinding(JComponent.java:588)
	at javax.swing.JComponent.processKeyBindings(JComponent.java:783)
	at javax.swing.JComponent.processKeyEvent(JComponent.java:765)
	at java.awt.Component.processEvent(Component.java:3825)
	at java.awt.Container.processEvent(Container.java:1281)
	at java.awt.Component.dispatchEvent(Component.java:3718)
	at java.awt.KeyboardFocusManager.redispatchEvent(KeyboardFocusManager.java:312)
	at java.awt.DefaultKeyboardFocusManager.dispatchKeyEvent(DefaultKeyboardFocusManager.java:379)
	at java.awt.DefaultKeyboardFocusManager.dispatchEvent(DefaultKeyboardFocusManager.java:96)
	at java.awt.Component.dispatchEvent(Component.java:3687)
	at java.awt.EventQueueCore.dispatchEventImpl(EventQueueCore.java:139)
	at java.awt.EventQueue.dispatchEvent(EventQueue.java:144)
	at java.awt.EventDispatchThread.runModalLoop(EventDispatchThread.java:69)
	at java.awt.ModalContext.runModalLoop(ModalContext.java:43)
	at java.awt.Dialog$DialogModalContext.runModalLoop(Dialog.java:44)
	at java.awt.Dialog.showModal(Dialog.java:369)
	at java.awt.Dialog.access$000(Dialog.java:34)
	at java.awt.Dialog$1.run(Dialog.java:258)
	at java.awt.event.InvocationEvent.runAndNotify(InvocationEvent.java:88)
	at java.awt.event.InvocationEvent.dispatch(InvocationEvent.java:77)
	at java.awt.EventQueueCore.dispatchEventImpl(EventQueueCore.java:131)
	at java.awt.EventQueue.dispatchEvent(EventQueue.java:144)
	at java.awt.EventDispatchThread.runModalLoop(EventDispatchThread.java:69)
	at java.awt.EventDispatchThread.run(EventDispatchThread.java:48)


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