[8u40] Request for approval: JDK-8058486: ClassCastException: cannot cast jdk.nashorn.internal.scripts.JO*

[Hannes Wallnoefer]

Please approve backport of JDK-8058486 to 8u40.

Bug: https://bugs.openjdk.java.net/browse/JDK-8058486
Webrev: http://cr.openjdk.java.net/~hannesw/8056978/
Review thread: 
http://mail.openjdk.java.net/pipermail/nashorn-dev/2014-September/003461.html
Changeset: http://hg.openjdk.java.net/jdk9/dev/nashorn/rev/10f36ba5ef80

The patch applies cleanly to 8u40 after fixing path names.

Thanks,
Hannes