Created attachment 107837 [details] Screenshot of the bug When I launch different java applications like netbeans and dbeaver, the task manager joins them in the same icon. If I run first netbeans then dbeaver appears as a second application in netbeans icon. And the other way around, if dbeaver is first, then netbeans appears in its icon.
These are application bugs that need to be fixed by the respective application developers by setting WM_CLASS and/or StartupWMClass correctly. Java developers are for some reason notoriously bad at this.