Problem with popup menu and threads

[David_Miller@xxxxxxxxx (David_Miller@xxxxxxxxx)]

Hi,

I'm stumped trying to get these menus to work correctly.

This is the situation:

I have a Frame in the background that covers the whole desktop.  The screen
is then divided into
2 parts.  There is a Window on the bottom that uses heay weight components
and a Window on the
top that uses light weight components.  When the JButtons on the upper
window are pressed, a
popup menu appears.  This menu is derived from PopupMenu not JPopupMenu.
Asynchronous events
happen that the underlying logic handles and causes the buttons on the top
window to change in
appearance.  The problem is that the buttons do not change until the menu
disappears.  As long as the
menu is showing, nothing is happening to the button's appearance.  There
are lots of threads in my
application, so I thought there might be a problem with showing a PopupMenu
on top of a Swing Window.

The thread that shows the menu is not the AWT thread.

I tried to make the menu a JPopupMenu, but it never displays!  I can see in
my trace that show() method
is being called and returned from, but the menu never appears.  There is
only a flash.

Any ideas on how to make the buttons do something???

TIA

David Miller



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