<AWT Dev> [8] RFR for 8150643: [TEST] add test for JDK-8150176

[Alexander Stepanov]

Hello,

Could you please review the following fix
http://cr.openjdk.java.net/~avstepan/8150643/webrev.00/
for
https://bugs.openjdk.java.net/browse/JDK-8150643 ?

Just a single test added (still failing).

Thanks,
Alexander