[8u40] Request for approval: 8025917: JDK demo applets not running with >=7u40 or (JDK 8 and JDK 9)

[Andrew Brygin]

Hello,

please approve an identical backport of the fix to jdk8u-dev.
The change applies cleanly to jdk8u-dev after path reshuffling
from modular source code layout.

The bug: https://bugs.openjdk.java.net/browse/JDK-8025917
jdk9 changeset:
http://hg.openjdk.java.net/jdk9/client/jdk/rev/f497d36d25f8

Thanks,
Andrew