[8u60] Request for approval: 8072602: Unpredictable timezone on Windows when OS's timezone is not found in tzmappings

[Masayoshi Okutsu]

Hello,

Could you please approve backport of the fix for 8072602 to jdk8u-dev? 
The fix is identical to the JDK 9 one.

Bug:
https://bugs.openjdk.java.net/browse/JDK-8072602

Webrev:
http://cr.openjdk.java.net/~okutsu/8u/8072602/webrev.00/

JDK9 changeset:
http://hg.openjdk.java.net/jdk9/dev/jdk/rev/e1f68774d811

Thanks,
Masayoshi