[8u20] Request for approval: 8014755 [TEST_BUG] frames didn't closed after execution some awt/dnd/ tests

[Oleg Pekhovskiy]

Hello,

please approve the backport of the fix to jdk8u-dev.

The bug: https://bugs.openjdk.java.net/browse/JDK-8014755
The JDK 9 changeset:
http://hg.openjdk.java.net/jdk9/client/jdk/rev/6f3559938123

Thanks,
Oleg.