Hello,
Please review fix for JDK9:
bug: https://bugs.openjdk.java.net/browse/JDK-8152968
webrev: http://cr.openjdk.java.net/~ssadetsky/8152968/webrev.00/
GTK lib paints the expander icon bigger then the dimension returned by
the "expander-size" property.
The fix increases the allocated space by adding insets of size 2 to make
the tree component UI looks as in native GTK apps.
Also a GTK3 issue is fixed: the tree expander state was not changed from
collapsed to expanded.
Test would require native application so the issue is noreg-hard.
--Semyon