RFR 8157241: Remove javac warnings of Nashorn "ant clean test"

[Hannes Wallnoefer]

+1

Am 2016-05-18 um 14:01 schrieb Sundararajan Athijegannathan:
> Please review http://cr.openjdk.java.net/~sundar/8157241/ for
> https://bugs.openjdk.java.net/browse/JDK-8157241
>
> Thanks,
>
> -Sundar
>