[8] RFR: RT-32501: JavaFx Application crashes on Exit

[Vadim Pakhnushev]

Hi!

Felipe, Anthony, Kevin, Steve,
Could you please review the fix:
https://javafx-jira.kenai.com/browse/RT-32501
http://cr.openjdk.java.net/~vadim/RT-32501/webrev.00/

Thanks,
Vadim