Locale.getCountry() return "" on several phone

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Mobile

Android

locale

Hi code-maniacs

This is about android locale, why on several devices(phones) the method

Locale.getCountry()

will return "" value ?

I've read android developer about this locale. But there're some point that made me confused :

This class' constructors do no error checking. You can create a Locale for languages and countries that don't exist, and you can create instances for combinations that don't exist (such as "de_US" for "German as spoken in the US").

and

public String getCountry ()
Returns the country code for this locale, or "" if this locale doesn't correspond to a specific country.

Can anyone explain me what's going on in that method?

and how to solve this, because I need that bloody method return my phone locale properly.

--many thanks
sb