Wait cursor not showing when clicking on a JMenuItem

I use the wait cursor when I do lengthy operations. The cursor usually works, but I cannot get it to work when I click on a JMenuItem. I saw this while researching the forums:
"The TreeWillExpandListener is called by the event dispatch thread, the thread responsible for refreshing your GUI. This means that until your loading method completes, no refresh activity is performed."
Could this be what is causing my problem?
Thanks for any and all help!

No. The problem is if your menu item launches some long process, your GUI thread is not getting updated until your process is over and by then, it's too late. The fix is to use threads to launch this long process so that the GUI has time to update the mouse cursor and the user knows what's going on.

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Wait cursor not showing when clicking on a JMenuItem

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