Public bug reported:

I have the problem, that the user interaction with the mouse does not
behave as expected (see attachement) in KDE.

I expect the following:
The frame pops up and button is clickable. On click there is a message at 
console.
Left clicks (single and double) on the tray icon does nothing. Right click 
opens the popup.
On minimizing the window it disappears (also from window list) and can be 
reshown by context of tray icon.
Right clicks on the button in the frame has no effect.

I see the following effect:
- After start the button is clickable and produces output. The icon opens the 
popup on right-clicking. (correct)
- On a single left click on the tray icon the button is no more clickable. A 
right click on the tray icon or the frame content brings up the popup. After 
that the button is clickable again.
- Minimizing hides the window. The window can be reshown via popup menu. 
(correct)
- The popup is no more reachable. After having minimized the window it cannot 
be brought back.

See also http://stackoverflow.com/questions/22561899/how-to-use-
systemtray-correctly-in-java.

I additionally installed sun java from sun.java.com and there everything
works (even if compiled with javac from openjdk). So it seems to be JRE
related.

Additional information:
Description:    Ubuntu 13.10
Release:        13.10
openjdk-7-jre: 7u51-2.4.4-0ubuntu0.13.10.1
kde-standard: 5:78ubuntu5
kde-workspace: 4:4.11.5-0ubuntu0.1

** Affects: openjdk-7 (Ubuntu)
     Importance: Undecided
         Status: New

** Attachment added: "Test program to show the issue"
   
https://bugs.launchpad.net/bugs/1296051/+attachment/4037510/+files/TestTray.java

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https://bugs.launchpad.net/bugs/1296051

Title:
  SystemTray does not work properly on mouse interaction

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