code: public static String formatMessage(TraceComponent tc, Enumeration<Locale> locales, String msgKey, Object... objs) {
          return formatMessage(tc, (locales == null) ? null : Collections.list(locales), msgKey, objs);
      }
docs: Like {@link #formatMessage(TraceComponent, List, String, Object...)},
  but takes an Enumeration of Locales.
  
  @see #formatMessage(TraceComponent, List, String, Object...)