private static void testGetTimeToLive() {
   long ttl = CONTROL.getTimeToLive("any", Locale.US);
   if (ttl != CONTROL.TTL_NO_EXPIRATION_CONTROL) {
     error("getTimeToLive: got %d, expected %d%n", ttl, CONTROL.TTL_NO_EXPIRATION_CONTROL);
   }
   final int NARGS = 2;
   for (int mask = 0; mask < (1 << NARGS) - 1; mask++) {
     Object[] data = getNpeArgs(NARGS, mask);
     try {
       ttl = CONTROL.getTimeToLive((String) data[0], (Locale) data[1]);
       error("getTimeToLive(%s, %s) doesn't throw NPE.%n", data[0], data[1]);
     } catch (NullPointerException e) {
     }
   }
 }