code: @Override
      protected Map<String, String> defaults() {
          Map<String, String> ret = new HashMap<String, String>();
          ret.put(DEBUG_DESC, valueOf(DEFAULT_DEBUG));
          ret.put(TIME_DESC, valueOf(DEFAULT_TIME));
          ret.put(VERBOSE_DESC, valueOf(DEFAULT_VERBOSE));
          ret.put(WARNINGS_AS_ERRORS_DESC, valueOf(DEFAULT_WARNINGS_AS_ERRORS));
          return ret;
      }
docs: {@inheritDoc}