Mouse cursor doesnt change to splitter over JTable column header.

Question

Hi, this problem seems to be fixed in 1.6 but does anybody know a work around in 1.5 on Windows XP?
I'm afraid that I haven't been able to locate the relevant bug fix (if any) despite my best efforts with Google and searching these forums.
The problem is that in 1.5 if the parent frame window is invisible then the mouse cursor doesn't change to the column splitter\resize icon when you hover the mouse between two columns on a column headers.
If you run the following code under 1.5.0.7, you don't get the cursor change, if you change f.setVisible(false) to f.setVisible(true) then it works.
public class ColumnResizeTest
    public static void main(String[] args)
        JFrame f = new JFrame("This is a test");
        f.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        f.setSize(400, 200);
        f.setVisible(false); // change to true to get resize mouse cursor
        test(f);
    public static void test(Frame f)
        JPanel contentPanel = new JPanel(new BorderLayout());
        JDialog d = new JDialog(f);
        d.setSize(200, 400);
        contentPanel.add(new JScrollPane(new JTable(new DefaultTableModel(5, 5))), BorderLayout.CENTER);
        d.setContentPane(contentPanel);
        d.setVisible(true);
}In my application at the point the JTable is displayed, the application frame is always invisible as the JTable is shown from the splash\login screen.
Thanks in advance.
Philip Wilkinson.

Answer 1

Adding a mouse listener to either a cell renderer or cell editor in a table the cell cursor will not work because it is the table which responds to mouse motion events - not the individual cell (at least in the case of MouseEntered and MouseExited).
My solution to this was to add a MouseMotionListener listener to the table and and on the mouseMoved event I called a method which determined whether or not the cursor to display should be a hand cursor or the default cursor.
For example:
* Adds a mouse motion listener to the table.
public void addTableMouseMotionListener()
    table.addMouseMotionListener(new MouseMotionAdapter() {
        public void mouseMoved(MouseEvent me) {
            displayColumnCursor(me);
* Method to change cursor based on some arbitrary rule.
protected void displayColumnCursor( MouseEvent me ) {
    Point p = me.getPoint();
    int column = columnAtPoint(p);
    int row = rowAtPoint(p);
    String columnName = getColumnName(column);
    if (columnName.equals("SOME_COLUMN")) {
        setCursor(Cursor.getPredefinedCursor(Cursor.HAND_CURSOR));
    } else {
        setCursor(Cursor.getDefaultCursor());
}Hope this helps solve your problem.
cheers
Greg