The following program outputs "frangais" (sic) instead of having char
231 (c cedilla) between the n and the second a, when you run it with
the environment variable LC_ALL set to fr.

import java.util.*;

class test
{
public static void main(String[] args)
{
Locale l = Locale.getDefault();
System.out.println("in "+l.getDisplayName());
}
}

laptop5$ javac test.java
laptop5$ env LC_ALL=fr java test
in frangais (France)
laptop5$