Testsuite name: Swing
Test name(s): Swing_SwingNode/Automated/SwingNodeJMenuBar
Product(s) tested: JDK 8 u202 b05
OS/architecture: Ubuntu 18.04 x64

Reproducible: Always
Is it a Regression: No, It is gtk3 specific issue (Test passes without "-Djdk.gtk.version=3 -Djdk.gtk.verbose=true" options)

Is it a platform specific issue:yes, issue is not observed on OEL 7
Log:
checking GTK version 3
trying GTK library libgtk-3.so.0
using GTK library version 3 set libgtk-3.so.0
Glass GTK library to load is glassgtk3
loaded gdk_x11_display_set_window_scale

(java:12859): Gdk-WARNING **: 14:06:21.926: XSetErrorHandler() called with a GDK error trap pushed. Don't do that.
Main menu does not get selected