<AWT Dev> <Awt Dev> [9] Review Request for 8022334: After calling frame.toBack() dialog goes to the back on Ubuntu 12.04

Semyon Sadetsky semyon.sadetsky at oracle.com
Tue Sep 29 17:51:59 UTC 2015


Please review fix for JDK9:

bug: https://bugs.openjdk.java.net/browse/JDK-8022334
webrev: http://cr.openjdk.java.net/~ssadetsky/8022334/webrev.00/

The Unity WM cannot switch top-level windows of different peers inside 
one Java app, because they have different WM_CLASS property and 
different WM_CLASS are treated as different applications. This issue is 
the root cause why a single Java app that contains multiple top-level 
windows is shown as several groups of apps in the taskbar.
And it makes impossible to "lock" multi-window Java app in the Unity 
taskbar because desktop shortcut should contain one WM_CLASS per app.
As a fix it is proposed to use the same WM_CLASS value for all peer classes.


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