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https://issues.apache.org/jira/browse/LUCENE-4020?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13262244#comment-13262244
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Robert Muir commented on LUCENE-4020:
-------------------------------------
Patch is on 4021 for round trip parsing (in 6 and 7). It should also work
across 6 and 7,
e.g. in on java6 we emit th_TH_TH, on java7 th_TH_TH_#u-nu-thai, but both are
constructed as th_TH_TH.
This is ok because of the backwards mechanism (Special Cases) listed in
http://docs.oracle.com/javase/7/docs/api/java/util/Locale.htm
> Tests may not be repeatable across different platforms/ JVMs due to different
> locale/ timezone being picked.
> ------------------------------------------------------------------------------------------------------------
>
> Key: LUCENE-4020
> URL: https://issues.apache.org/jira/browse/LUCENE-4020
> Project: Lucene - Java
> Issue Type: Bug
> Reporter: Dawid Weiss
> Assignee: Dawid Weiss
> Priority: Minor
> Fix For: 4.0
>
> Attachments: LUCENE-4020.diff, LUCENE-4020.patch
>
>
> This is because the source array can be/ is different for each system/ JVM.
> So this pick is not repeatable for example:
> {code}
> /**
> * Return a random Locale from the available locales on the system.
> */
> public static Locale randomLocale(Random random) {
> Locale locales[] = Locale.getAvailableLocales();
> return locales[random.nextInt(locales.length)];
> }
> {code}
> I don't think there is much we can do to make it repeatable (other than maybe
> enforcing locale using system property).
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