[9] Review request for 8146916: FXCollections.unmodifiableObservableSet does not implement Set::contains

[Vadim Pakhnushev]

Kevin,

Could you please take a look at the fix:
https://bugs.openjdk.java.net/browse/JDK-8146916
http://cr.openjdk.java.net/~vadim/8146916/webrev.00/

Thanks,
Vadim