JDK-6440819 : [Vista build5384] (tz) platform time zone detection doesn't work on localized Vista
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The time zone detection code doesn't work on localized Windows Vista (Japanese version).
On Vista (from build 5384), the "TimeZoneInformation" registry has the reference ("TimeZoneKeyName") to the current "Time Zones" registry entry. So, it's no longer necessary to scan the "Time Zones" entries.
Time zone names in registry are no longer translated. Therefore, localized names from GetTimeZoneInformation() don't match time zone names in the "Time Zones" registry entries.