FULL PRODUCT VERSION :
java version "1.4.2_05"
Java(TM) 2 Runtime Environment, Standard Edition (build 1.4.2_05-b04)
Java HotSpot(TM) Client VM (build 1.4.2_05-b04, mixed mode)

java version "1.5.0_04"
Java(TM) 2 Runtime Environment, Standard Edition (build 1.5.0_04-b05)
Java HotSpot(TM) Client VM (build 1.5.0_04-b05, mixed mode, sharing)

ADDITIONAL OS VERSION INFORMATION :
windows2000, linux (fedoracore 2)
(works on Mac OS x 10.3.9)

A DESCRIPTION OF THE PROBLEM :
I have a JList with the following entries: "one", "two", "THREE", "four".
SINGLE_SELECTION model. When the user selects "THREE", it pops up
a modal dialog. If I go down the list, selecting each entry successively,
when I choose "THREE", the JList highlights my previous selection (e.g. "two")
and the current selection (i.e. "THREE"), even though I have set it to
SINGLE_SELECTION.

I have observed this on windows2000, and linux (fedoracore2), but
not on Mac OS X 10.3.9.


STEPS TO FOLLOW TO REPRODUCE THE PROBLEM :
Run the included program, select each JList entry in order. Each item will be highlighted, except when "THREE" is selected. A modal dialog will pop up, leaving both "two" and "THREE" highlighted.

EXPECTED VERSUS ACTUAL BEHAVIOR :
EXPECTED -
"two" should not be highlighted, only "THREE".
ACTUAL -
both "two" and "THREE" are highlighted.

REPRODUCIBILITY :
This bug can be reproduced always.

---------- BEGIN SOURCE ----------
import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
import javax.swing.event.*;

public class TestJList extends JFrame implements ListSelectionListener, FocusListener
{
    private static TestJList sTest;

    private JList list;
    private JScrollPane scroll;
    private String fCurrentItem;
    
    public TestJList()
    {
JToolBar tool = new JToolBar();
        sTest = this;
        
        setTitle("Test Frame");
        JPanel innerPanel = new JPanel(new BorderLayout());
        
        list = new JList();

        scroll = new JScrollPane();
scroll.setHorizontalScrollBarPolicy(JScrollPane.HORIZONTAL_SCROLLBAR_NEVER);
scroll.setVerticalScrollBarPolicy(JScrollPane.VERTICAL_SCROLLBAR_ALWAYS);
scroll.getVerticalScrollBar().setFocusable(false);
scroll.setBorder(BorderFactory.createLoweredBevelBorder());

list.setSelectionMode(ListSelectionModel.SINGLE_SELECTION);
        
        tool.add(scroll);
scroll.getViewport().add(list, null);

list.addListSelectionListener(this);
list.addFocusListener(this);
//list.setEnabled(false);
String[] data = {"one", "two", "THREE", "four"};
list.setListData(data);

        innerPanel.add(tool, BorderLayout.NORTH);
        setTitle("Test Combo");
        JTextArea textArea = new JTextArea();
        textArea.setLineWrap(true);
        textArea.setPreferredSize(new Dimension(400,400));
        innerPanel.add(textArea, BorderLayout.CENTER);
        getContentPane().add(innerPanel);
        sTest.setSize(400, 400);
        sTest.setVisible(true);
        
    }
    

    public static void main(String[] args)
    {
        new TestJList();
    }

    public void focusGained(FocusEvent event)
{
Object eventSource = event.getSource();
//System.out.println("focusGained("+eventSource+")");
}

    public void focusLost(FocusEvent event)
{
Object eventSource = event.getSource();
//System.out.println("focusLost("+eventSource+")");
}

    public void valueChanged(ListSelectionEvent event)
{
Object eventSource = event.getSource();
//System.out.println("focusLost("+eventSource+")");

if (eventSource == list)
{
int idx = list.getSelectedIndex();
System.out.println("idx:"+idx);
if (idx == 2)
popupdialog();
}
}

public void popupdialog()
{
dialog d = new dialog(this);
d.pack();
d.show();
}

public class dialog extends JDialog implements ActionListener
{
private JPanel Panel_Content = new JPanel();
private JPanel Panel_Buttons = new JPanel();
private JButton button = new JButton();

dialog(Frame owner)
{
super(owner);
try {jbInit();} catch (Exception e){e.printStackTrace();}
}

     private void jbInit() throws Exception
     {
         // init the ui
         this.setModal(true);
         this.setTitle("dialog");

Panel_Content.setLayout(new GridBagLayout());
Panel_Content.setBorder(BorderFactory.createEmptyBorder(20,20,20,20));

button.setText("OK");
Panel_Buttons.setLayout(new GridBagLayout());
Panel_Buttons.add(button, new GridBagConstraints(0, 0, 0, 0, 0.0, 0.0, GridBagConstraints.CENTER, GridBagConstraints.NONE, new Insets(0, 10, 0, 0), 0, 0));
Panel_Content.add(Panel_Buttons, new GridBagConstraints(0, 3, 2, 1, 0.0, 0.0, GridBagConstraints.EAST, GridBagConstraints.NONE, new Insets(20, 0, 0, 0), 0, 0));
this.getContentPane().add(Panel_Content, BorderLayout.CENTER);

button.addActionListener(this);
}

public void actionPerformed(ActionEvent event)
{
Object eventSource = event.getSource();
if (eventSource == button)
{
hide();
}
        }
}
}

---------- END SOURCE ----------
###@###.### 2005-07-05 09:43:19 GMT