[jira] [Reopened] (LANG-828) FastDateParser does not handle non-Gregorian calendars properly

["Sebb (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/LANG-828?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Sebb reopened LANG-828:
-----------------------


Much searching and experimentation reveals that the reason for the problems is as mentioned here: [1]

i.e. DateFormatSymbols#getEras() returns a pair of strings for Gregorian calendar AD and BC; the method does not return the correct eras for th_TH or ja_JP_JP locales.

Also, these locales have long and short versions.

The solution is as mentioned in [1], i.e. use

Calendar.getDisplayNames(Calendar.ERA, Calendar.SHORT, locale);

for all locales.

[1] https://issues.apache.org/jira/browse/TRINIDAD-2126
                
> FastDateParser does not handle non-Gregorian calendars properly
> ---------------------------------------------------------------
>
>                 Key: LANG-828
>                 URL: https://issues.apache.org/jira/browse/LANG-828
>             Project: Commons Lang
>          Issue Type: Bug
>          Components: lang.time.*
>    Affects Versions: 3.1
>            Reporter: Sebb
>             Fix For: 3.2
>
>
> The following calendars are non-Gregorian [1]:
> ja_JP_JP - Japanese Imperial)
> th_TH (with any variant) - Thai Buddhist
> This causes errors when testing round-trip conversions.
> The simplest solution is to fall back to SimpleDateFormat for these calendars.
> [1] http://docs.oracle.com/javase/6/docs/technotes/guides/intl/calendar.doc.html

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