<i18n dev> java 9 AKST timezone parsing

[Clément Guillaume]

Hi,

I verified that using java.locale.providers=COMPAT with java 9 makes the
AKST to be parsed as America/Juneau

Is http://bugreport.java.com/ the correct way to file a jira?

Le mer. 11 oct. 2017 à 10:50, Naoto Sato <naoto.sato at oracle.com> a écrit :

> (replying to appropriate aliases, instead of generic jdk9-dev alias)
>
> Hi Clément,
>
> The locale data, where those time zone names are derived from, have been
> switched to use Unicode Consortium's CLDR, instead of the ones that are
> previously used prior to JDK9. So there will be some differences you may
> encounter. However it seems not right to parse "AKST" to SystemV time
> zone. I'd appreciate it if you file a JIRA issue for this.
>
> In the mean time, you can revert to the JDK8 behavior by setting the
> system property "-Djava.locale.providers=COMPAT" to the command line.
>
> HTH,
> Naoto
>
> On 10/10/17 7:37 PM, Clément Guillaume wrote:
> > Hello,
> >
> > When parsing a date time string that contains a time zone like AKST,
> AKDT,
> > HST or AST with a DateTimeFormatter built from a pattern containing 'z',
> > java 9 returns the SystemV variant of those timezone, which then behave
> > differently as the "modern" ones. Looks like it's also an issue with long
> > time zone ("Alaska Standard Time")
> >
> >  From my digging I noticed that the PrefixTree generated
> > by ZoneTextPrinterParser.getTree is different in java 8 and java 9, and
> > this may be caused by a different order in the content returned
> > by TimeZoneNameUtility.getZoneStrings(Locale.getDefault())
> >
> > Is this an expected behavior of java 9? (other american time zones are
> > parsed to the modern version: PST -> America/Los_Angeles)
> >
> > I tested it with java 9 build 9+181 and java 8 build 1.8.0_131-b11 (both
> > linux 64 with en_US as local) on this code:
> >
> > import java.time.ZoneOffset;
> > import java.time.format.DateTimeFormatter;
> > import java.time.temporal.TemporalAccessor;
> >
> > public class Main{
> >
> > public static void main(String[] args){
> > DateTimeFormatter timezoneFormatter = DateTimeFormatter.ofPattern("z");
> > TemporalAccessor temporalAccessor = timezoneFormatter.parse("AKST");
> > System.out.println(temporalAccessor);
> > temporalAccessor = timezoneFormatter.parse("AKDT");
> > System.out.println(temporalAccessor);
> > temporalAccessor = timezoneFormatter.parse("HST");
> > System.out.println(temporalAccessor);
> > temporalAccessor = timezoneFormatter.parse("AST");
> > System.out.println(temporalAccessor);
> >
> > DateTimeFormatter isoFormatter =
> >
> DateTimeFormatter.ofPattern("yyyy-MM-dd'T'HH:mmX").withZone(ZoneOffset.UTC);
> > temporalAccessor =
> >
> DateTimeFormatter.ofPattern("yyyy-MM-dd'T'HH:mm:ss.SSSz").parse("2017-09-13T06:30:33.123AKST");
> > System.out.println(temporalAccessor);
> > System.out.println(isoFormatter.format(temporalAccessor));
> > temporalAccessor =
> >
> DateTimeFormatter.ofPattern("yyyy-MM-dd'T'HH:mm:ss.SSSVV").parse("2017-09-13T06:30:33.123America/Anchorage");
> > System.out.println(temporalAccessor);
> > System.out.println(isoFormatter.format(temporalAccessor));
> > }
> >
> > }
> >
>