Review Request for JDK-8150324: java/util/Currency/CurrencyTest.java does not restore default TimeZone

[Nishit Jain]

Hello All,

Please review the following fix for JDK-8150324
Bug: https://bugs.openjdk.java.net/browse/JDK-8150324
Webrev: http://cr.openjdk.java.net/~peytoia/Nishit/8150324/webrev.01/

Fix: Tried to resolve the issue using java.time APIs to avoid problems 
caused by setting the default TimeZone of the system.

Regards,
Nishit Jain