JavaFX applications don't have window borders
To reproduce the behavior run some javafx application
Expected normal window with borders


Its an issue with JavaFX and GTK3. To use gtk2 use this: -Djdk.gtk.version=2
If the window borders are correctly shown and functioning on GNOME, XFCE and others (which all use the GTK3), why is this an issue of JavaFX and GTK3?
Also searched the bug tracker of JDK and could not find any similar bug with javafx as component.
Most helpful comment
Its an issue with JavaFX and GTK3. To use gtk2 use this: -Djdk.gtk.version=2