import java.util.Collections;
import java.util.List;
import java.util.Locale;
import java.util.Locale.LanguageRange;

public class LocaleTest {
	public static void main (String[] args){
	List<LanguageRange> ranges = Locale.LanguageRange.parse("nv");
	// the next line with throw a StringIndexOutOfBoundsException
	Locale.lookup(ranges,Collections.singleton(Locale.ENGLISH));
	}


}