HelloAlert crashed once when resize the window.

----- HelloAlert -----
java -ea -cp ../../../artifacts/sdk/rt/lib/jfxrt.jar:dist/HelloWorld.jar helloworld.HelloAlert

(java:3464): Gtk-CRITICAL **: IA__gtk_window_set_type_hint: assertion `!gtk_widget_get_mapped (GTK_WIDGET (window))' failed

(java:3464): Gtk-CRITICAL **: IA__gtk_window_set_type_hint: assertion `!gtk_widget_get_mapped (GTK_WIDGET (window))' failed
Color change canceled

(java:3464): Gtk-CRITICAL **: IA__gtk_window_set_type_hint: assertion `!gtk_widget_get_mapped (GTK_WIDGET (window))' failed
Good answer

(java:3464): Gtk-CRITICAL **: IA__gtk_window_set_type_hint: assertion `!gtk_widget_get_mapped (GTK_WIDGET (window))' failed
Continue

(java:3464): Gtk-CRITICAL **: IA__gtk_window_set_type_hint: assertion `!gtk_widget_get_mapped (GTK_WIDGET (window))' failed
#
# A fatal error has been detected by the Java Runtime Environment:
#
# SIGSEGV (0xb) at pc=0x6aacd067, pid=3464, tid=1871178560
#
# JRE version: 7.0_04-b20
# Java VM: Java HotSpot(TM) Server VM (23.0-b21 mixed mode linux-x86 )
# Problematic frame:
# C [libnvidia-glcore.so.295.40+0x1137067] _nv012glcore+0x8667
#
# Failed to write core dump. Core dumps have been disabled. To enable core dumping, try "ulimit -c unlimited" before starting Java again
#
# An error report file with more information is saved as:
# /home/yao/build3.0/rt-closed/toys/HelloWorld/hs_err_pid3464.log
#
# If you would like to submit a bug report, please visit:
# http://bugreport.sun.com/bugreport/crash.jsp
# The crash happened outside the Java Virtual Machine in native code.
# See problematic frame for where to report the bug.
#
Aborted (core dumped)