Name: jk109818 Date: 01/09/2003


FULL PRODUCT VERSION :
java version "1.3.1"
Java(TM) 2 Runtime Environment, Standard Edition (build 1.3.1-b24)
Java HotSpot(TM) Client VM (build 1.3.1-b24, mixed mode)

java version "1.4.1_01"
Java(TM) 2 Runtime Environment, Standard Edition (build 1.4.1_01-b01)
Java HotSpot(TM) Client VM (build 1.4.1_01-b01, mixed mode)

FULL OPERATING SYSTEM VERSION :

windows 2000

A DESCRIPTION OF THE PROBLEM :
when you create JTable(model is default-empty), and
use "tab" key to focus the table, you will select a row.
I fount it in 1.3.1 and 1.4

STEPS TO FOLLOW TO REPRODUCE THE PROBLEM :
1.create a new jtable
2.use tab to focus talbe
3.use method getSelectedRow to show the row u "selected"

EXPECTED VERSUS ACTUAL BEHAVIOR :
no row will be selected

ERROR MESSAGES/STACK TRACES THAT OCCUR :
java.lang.ArrayIndexOutOfBoundsException: 0 >= 0

at java.util.Vector.elementAt(Vector.java:417)

at javax.swing.table.DefaultTableColumnModel.getColumn
(DefaultTableColumnModel.java:276)

at javax.swing.JTable.convertColumnIndexToModel(JTable.java:1623)

at javax.swing.JTable.getValueAt(JTable.java:1714)

at testproject.TestTableFrame.jButton1_actionPerformed
(TestTableFrame.java:69)

at testproject.TestTableFrame$1.actionPerformed
(TestTableFrame.java:49)

at javax.swing.AbstractButton.fireActionPerformed
(AbstractButton.java:1450)

at javax.swing.AbstractButton$ForwardActionEvents.actionPerformed
(AbstractButton.java:1504)

at javax.swing.DefaultButtonModel.fireActionPerformed
(DefaultButtonModel.java:378)

at javax.swing.DefaultButtonModel.setPressed
(DefaultButtonModel.java:250)

at javax.swing.plaf.basic.BasicButtonListener.mouseReleased
(BasicButtonListener.java:216)

at java.awt.Component.processMouseEvent(Component.java:3715)

at java.awt.Component.processEvent(Component.java:3544)

at java.awt.Container.processEvent(Container.java:1164)

at java.awt.Component.dispatchEventImpl(Component.java:2593)

at java.awt.Container.dispatchEventImpl(Container.java:1213)

at java.awt.Component.dispatchEvent(Component.java:2497)

at java.awt.LightweightDispatcher.retargetMouseEvent
(Container.java:2451)

at java.awt.LightweightDispatcher.processMouseEvent
(Container.java:2216)

at java.awt.LightweightDispatcher.dispatchEvent(Container.java:2125)

at java.awt.Container.dispatchEventImpl(Container.java:1200)

at java.awt.Window.dispatchEventImpl(Window.java:914)

at java.awt.Component.dispatchEvent(Component.java:2497)

at java.awt.EventQueue.dispatchEvent(EventQueue.java:339)

at java.awt.EventDispatchThread.pumpOneEventForHierarchy
(EventDispatchThread.java:131)

at java.awt.EventDispatchThread.pumpEventsForHierarchy
(EventDispatchThread.java:98)

at java.awt.EventDispatchThread.pumpEvents
(EventDispatchThread.java:93)

at java.awt.EventDispatchThread.run(EventDispatchThread.java:85)

Selected row: 2



REPRODUCIBILITY :
This bug can be reproduced always.

---------- BEGIN SOURCE ----------
package testproject;

import java.awt.*;
import javax.swing.*;
import java.awt.event.*;

/**
 * <p>Title: </p>
 * <p>Description: </p>
 * <p>Copyright: Copyright (c) 2002</p>
 * <p>Company: </p>
 * @author richard xing
 * @version 1.0
 */

public class TestTableFrame extends JFrame
{
    private JScrollPane jScrollPane1 = new JScrollPane();
    private BorderLayout borderLayout1 = new BorderLayout();
    private JButton jButton1 = new JButton();
    private JTable jTable1 = new JTable();
    private JLabel jLabel1 = new JLabel();

    public TestTableFrame()
    {
        try
        {
            jbInit();
        }
        catch(Exception e)
        {
            e.printStackTrace();
        }
    }
    public static void main(String[] args)
    {
        TestTableFrame testTableFrame = new TestTableFrame();
        testTableFrame.setSize(640,480);
        testTableFrame.setVisible(true);
    }
    private void jbInit() throws Exception
    {
        this.getContentPane().setLayout(borderLayout1);
        jButton1.setText("Get Selected Row(Use \"TAB\" key focus table then
click this button)");
        jButton1.addActionListener(new java.awt.event.ActionListener()
        {
            public void actionPerformed(ActionEvent e)
            {
                jButton1_actionPerformed(e);
            }
        });
        jLabel1.setHorizontalAlignment(SwingConstants.CENTER);
        jLabel1.setText("Test Table");
        this.getContentPane().add(jScrollPane1, BorderLayout.CENTER);
        jScrollPane1.getViewport().add(jTable1, null);
        this.getContentPane().add(jButton1, BorderLayout.SOUTH);
        this.getContentPane().add(jLabel1, BorderLayout.NORTH);
    }

    void jButton1_actionPerformed(ActionEvent e)
    {
        int[] rowNum = this.jTable1.getSelectedRows();

        try
           {
               for (int i = 0; i < rowNum.length; i++)
               {
                   System.out.println("Selected row: "+rowNum[i]);
                   jTable1.getValueAt(rowNum[i],0);
               }
           }
           catch (Exception ex)
           {
               ex.printStackTrace();
            }
    }
}
---------- END SOURCE ----------

CUSTOMER WORKAROUND :
when jtable tell u , it has selected some row , you should
test the row in try-catch first. if it was correct, then
continue , or ignore it . :)
(Review ID: 178910)
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