JFileChooser in GTK Look and feel throws ArrayIndexOutOfBounds exception when space bar key is pressed on file list panel.

Using keyboard navigation, filelist panel can gain focus. The user can select a folder and go inside the folder by pressing enter key. After that, user can't select any folder - on pressing any of the keys. If the space bar is pressed when the focus is on filelist panel, the following exception can be seen at the console:

Exception occurred during event dispatching:
java.lang.ArrayIndexOutOfBoundsException: 12 >= 7
at java.util.Vector.elementAt(Vector.java:432)
at com.sun.java.swing.plaf.gtk.GTKFileChooserUI$GTKDirectoryListModel.getElementAt(GTKFileChooserUI.java:760)
at javax.swing.JList.getSelectedValue(JList.java:1814)
at com.sun.java.swing.plaf.gtk.GTKFileChooserUI$SelectionListener.valueChanged(GTKFileChooserUI.java:361)
at javax.swing.JList.fireSelectionValueChanged(JList.java:1317)
at javax.swing.JList$ListSelectionHandler.valueChanged(JList.java:1331)
at javax.swing.DefaultListSelectionModel.fireValueChanged(DefaultListSelectionModel.java:187)
at javax.swing.DefaultListSelectionModel.fireValueChanged(DefaultListSelectionModel.java:157)
at javax.swing.DefaultListSelectionModel.setValueIsAdjusting(DefaultListSelectionModel.java:619)
at javax.swing.JList.setValueIsAdjusting(JList.java:1671)
at javax.swing.plaf.basic.BasicListUI$Actions.actionPerformed(BasicListUI.java:1690)
at javax.swing.SwingUtilities.notifyAction(SwingUtilities.java:1569)
at javax.swing.JComponent.processKeyBinding(JComponent.java:2689)
at javax.swing.JComponent.processKeyBindings(JComponent.java:2724)
at javax.swing.JComponent.processKeyEvent(JComponent.java:2652)
at java.awt.Component.processEvent(Component.java:5240)
at java.awt.Container.processEvent(Container.java:1961)
at java.awt.Component.dispatchEventImpl(Component.java:3931)
at java.awt.Container.dispatchEventImpl(Container.java:2019)
at java.awt.Component.dispatchEvent(Component.java:3779)
at java.awt.KeyboardFocusManager.redispatchEvent(KeyboardFocusManager.java:1804)
at java.awt.DefaultKeyboardFocusManager.dispatchKeyEvent(DefaultKeyboardFocusManager.java:668)
at java.awt.DefaultKeyboardFocusManager.preDispatchKeyEvent(DefaultKeyboardFocusManager.java:916)
at java.awt.DefaultKeyboardFocusManager.typeAheadAssertions(DefaultKeyboardFocusManager.java:794)
at java.awt.DefaultKeyboardFocusManager.dispatchEvent(DefaultKeyboardFocusManager.java:632)
at java.awt.Component.dispatchEventImpl(Component.java:3817)
at java.awt.Container.dispatchEventImpl(Container.java:2019)
at java.awt.Window.dispatchEventImpl(Window.java:1757)
at java.awt.Component.dispatchEvent(Component.java:3779)
at java.awt.EventQueue.dispatchEvent(EventQueue.java:463)
at java.awt.EventDispatchThread.pumpOneEventForHierarchy(EventDispatchThread.java:234)
at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:163)
at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:153)
at java.awt.Dialog+1.run(Dialog.java:514)
at java.awt.Dialog.show(Dialog.java:535)
at javax.swing.JFileChooser.showDialog(JFileChooser.java:717)
at javax.swing.JFileChooser.showOpenDialog(JFileChooser.java:620)
at FileChooserDemo$2.actionPerformed(FileChooserDemo.java:156)
at javax.swing.AbstractButton.fireActionPerformed(AbstractButton.java:1834)
at javax.swing.AbstractButton$Handler.actionPerformed(AbstractButton.java:2152)
at javax.swing.DefaultButtonModel.fireActionPerformed(DefaultButtonModel.java:420)
at javax.swing.DefaultButtonModel.setPressed(DefaultButtonModel.java:258)
at javax.swing.plaf.basic.BasicButtonListener.mouseReleased(BasicButtonListener.java:234)
at java.awt.Component.processMouseEvent(Component.java:5463)
at javax.swing.JComponent.processMouseEvent(JComponent.java:3052)
at java.awt.Component.processEvent(Component.java:5228)
at java.awt.Container.processEvent(Container.java:1961)
at java.awt.Component.dispatchEventImpl(Component.java:3931)
at java.awt.Container.dispatchEventImpl(Container.java:2019)
at java.awt.Component.dispatchEvent(Component.java:3779)
at java.awt.LightweightDispatcher.retargetMouseEvent(Container.java:4203)
at java.awt.LightweightDispatcher.processMouseEvent(Container.java:3883)
at java.awt.LightweightDispatcher.dispatchEvent(Container.java:3813)
at java.awt.Container.dispatchEventImpl(Container.java:2005)
at java.awt.Window.dispatc

The exception occurs on all platforms. I was able to reproduce it on b32 and b51. It does not occur on b09.

Steps to reproduce:
1. In SwingSet2 demo, switch to GTK L&F
2. Go to FileChooser demo and open the filechooser.
3. Using keyboard, bring the focus to filelist panel, select a folder and press enter.
4. Now press the space key. The exception occurs now.


===========================================================

Step three can also be:

3. Double-click on an empty directory.

(More specifically, a directory with fewer children than the index
of the directory in its parent's list).

###@###.### 2004-06-10