code: public static String getISO3Language(String language) {
  
          int offset = findIndex(_languages, language);
          if(offset>=0){
              return _languages3[offset];
          } else {
              offset = findIndex(_obsoleteLanguages, language);
              if (offset >= 0) {
                  return _obsoleteLanguages3[offset];
              }
          }
          return "";
      }
docs: Returns a three-letter abbreviation for the language.  If language is
  empty, returns the empty string.  Otherwise, returns
  a lowercase ISO 639-2/T language code.
  The ISO 639-2 language codes can be found on-line at
  <a href="ftp://dkuug.dk/i18n/iso-639-2.txt"><code>ftp://dkuug.dk/i18n/iso-639-2.txt</code></a>
  @exception MissingResourceException Throws MissingResourceException if the
  three-letter language abbreviation is not available for this locale.