I am clicking a menu on the frame. Menu drops down showing all the sub-menus. I am clicking one of the sub-menus. All the menu items corresponding to the selected sub-menu are shown. Now when I press 'Escape' key, it makes the whole menu disappear instead of making the currently active sub-menu disappear. This holds good for keyboard traversal also. This is reproducible on Tiger with XToolkit on Solaris10 / Linux. This works fine on Win32.

On Motif Toolkit, the above mentioned functionality works when traversing the menus using keyboard. But it does not work when navigating using mouse. But on XToolkit, it does not work regardless of whether navigation is done through keyboard or mouse.

I have attached a sample test. Execute the sample test. Click on the 'Messages' menu. A drop-down will appear with 4 sub-menus. Click on one of the sub-menus. Make sure the respective menuitems are shown. press 'ESC' key. If the whole menu disappears the bug is reproduced. Repeat the above steps through keyboard and check whether it is reproducible.

I checked this with some native applications and found that only the sub-menu disappears when pressing 'ESC' key.