[8u40] Request for approval: JDK-8058179: Global constants get in the way of self-modifying properties

[Hannes Wallnoefer]

Please approve backport of JDK-8058179 to 8u40.

Bug: https://bugs.openjdk.java.net/browse/JDK-8058179
Webrev: http://cr.openjdk.java.net/~hannesw/8058179/
Changeset: http://hg.openjdk.java.net/jdk9/dev/nashorn/rev/5a238407c8f1
Review thread: 
http://mail.openjdk.java.net/pipermail/nashorn-dev/2014-September/003441.html

The patch applies cleanly after fixing path names.

Thanks,
Hannes