private static long parseTime(String arg) {
    DateFormat fmt = DateFormatter.createDateFormat();
    try {
      Date d = fmt.parse(arg);
      return d.getTime();
    } catch (ParseException ex) {
      throw new IllegalArgumentException(
          String.format("Time was not in this format %s. %s",
              DateFormatter.FORMAT_STRING, ex));
    }
  }
Represents a list of ResourceInst that have been combined together. Note the most common case
is for this class to only own a single ResourceInst.
geode-core/src/main/java/org/apache/geode/internal/SystemAdmin.java