FULL PRODUCT VERSION :
java version "1.5.0_06"
Java(TM) 2 Runtime Environment, Standard Edition (build 1.5.0_06-b05)
Java HotSpot(TM) Client VM (build 1.5.0_06-b05, mixed mode, sharing)

ADDITIONAL OS VERSION INFORMATION :
Microsoft Windows XP [Version 5.1.2600]

A DESCRIPTION OF THE PROBLEM :
The ToolTip text doesn't disappear when the test program is executed. this can be reporduced when the cursor is moved quickly downward over the ToolTip above the label.

When the cursor moves out of the label (not over the tooltip), the tooltip disappears.

REPRODUCIBILITY :
This bug can be reproduced always.

---------- BEGIN SOURCE ----------
public class Test {
  public static void main(String[] args) {
    ToolTipManager manager = ToolTipManager.sharedInstance();
    manager.setInitialDelay(0);
    manager.setDismissDelay(10000);
    manager.setReshowDelay(0);

    JLabel label = new JLabel("ã??ã?¹ã??") {
      public Point getToolTipLocation(MouseEvent event) {
        Dimension d = event.getComponent().getSize();
        Point p = new Point(0, d.height);
        return p;
      }
    };
    label.setBackground(Color.RED);
    label.setOpaque(true);
    label.setBounds(0, 0, 45, 20);
    label.setToolTipText("ã?¦ã??ã?¨");
    
    JFrame frame = new JFrame();
    frame.getContentPane().setLayout(null);
    frame.add(label);
    frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
    frame.setSize(400, 500);
    frame.setVisible(true);
  }
}
---------- END SOURCE ----------