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https://issues.apache.org/jira/browse/JENA-407?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Andy Seaborne updated JENA-407:
-------------------------------

    Component/s:     (was: IRI)
    
> toLowerCase without Locale.English causing trouble in some language regions 
> (Turkey especially)
> -----------------------------------------------------------------------------------------------
>
>                 Key: JENA-407
>                 URL: https://issues.apache.org/jira/browse/JENA-407
>             Project: Apache Jena
>          Issue Type: Bug
>          Components: Jena
>    Affects Versions: Jena 2.10.0
>            Reporter: Simon Helsen
>            Priority: Minor
>
> The instance I am referring to concretely is the language tag constructor: 
> LanguageTag. 
> It makes the following call on line 41:  String lc = tag.toLowerCase(); This 
> should be corrected to  String lc = tag.toLowerCase(Locale.English);
> The problem is that otherwise, it use the machine default language to produce 
> the lower cases which in some Locales (Turkey being one of them) incorrectly 
> lowercases letters like 'I'. Because the tag is a 'technical' term (not an 
> actual piece of language) it should lowercase in English
> The effect of this particular instance is that we see 
> System.err.println("Internal Error in static initializer of IanaLnaguageTag.")
> appear in std.err and it has raised concerns with our customers.
> In general, any occurrence of toLowerCase should be adjusted if it lowercases 
> a technical term.

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