Name: gm110360 Date: 05/09/2002


FULL PRODUCT VERSION :
java version "1.3.1_03"
Java(TM) 2 Runtime Environment, Standard Edition (build 1.3.1_03-b03)
Java HotSpot(TM) Client VM (build 1.3.1_03-b03, mixed mode)

FULL OPERATING SYSTEM VERSION :
Microsoft Windows 2000 [Version 5.00.2195]

A DESCRIPTION OF THE PROBLEM :
I have a table where some cells have tool tips, while
others do not. If you move the mouse over a cell (which has
a tool tip) from outside the table the tool tip displays
correctly. If you move the mouse from a cell with no tool
tip to a cell with a tool tip, no tool tip is displayed.

In other words tool tips are not displayed as the mouse
travels from cells with no tool tip to cells with tool
tips.

After searching through the source code for
javax.swing.ToolTipManager I noted that in JDK 1.3.1_03 a
line was added in mouseMoved() at line 548:
    insideComponent = null;

It looks to me like if any portion of a component returns
null for either getToolTipText() or getToolTipLocation()
then all future calls to showTipWindow() will fail.

(I would like to point out that in JDK 1.3.1_02 this
problem did not exist.)



REGRESSION. Last worked in version 1.3.1

This bug can be reproduced always.

Release Regression From : 1.3.0_02
The above release value was the last known release where this
bug was known to work. Since then there has been a regression.

(Review ID: 146386)
======================================================================