Using ToolTips and mouseListeners

Hi,
I found a strange mouse-input behavior in my Swing application.
The application consists of a JInternalFrame with an extended JPanel inside. The mouse-listening happens at the frame-level.
Normal detection and processing of mouse-events is OK.
As soon as I add a setToolTipText-statement in the constructor of my JPanel, mouse-events are blocked. They are NOT received anymore by the frame-level.
Has anybody already encountered this ? And more importantly, how can this problem be solved, avoided or bypassed ?
Thanks for any ideas.
Marc

There's been a thread on this subject these very days, I cannot find it though.
One of the regulars here, probably camickr, was explaining that once a MouseListener is added on any component in the hierarchy (and I seem to remember the wording was "and this can happen innocently like by setting a tooltip"), the MouseEvent does not bubble up the widget hierarchy.
Indeed the tooltip behavior is provided by the system, by listening to mousenetered()/exited() to handle mouse hovering.
I cannot imagine one good reason to listen for MouseEvents "at the frame level", but that's probably caused by my lazyness or lack of imagination.
Still, you may want to do that with a GlassPane, that would listen to MouseEvents, but still propagate them to components underneath.
Make sure to check [this article|http://weblogs.java.net/blog/alexfromsun/archive/2006/09/a_wellbehaved_g.html] on how to make a "well-behaved glasspane", before going that route, as there are several difficulties along the way.
Edited by: jduprez on Jul 24, 2009 12:31 PM - remove incorrect references to MouseMotionEvent and Listener

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>
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>
> --
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