code: public static Date parse(String value) {
          try {
              return STANDARD_DATE_FORMAT.get().parse(value);
          } catch (ParseException ignore) {
          }
          for (String formatString : BROWSER_COMPATIBLE_DATE_FORMATS) {
              try {
                  return new SimpleDateFormat(formatString, Locale.US).parse(value);
              } catch (ParseException ignore) {
              }
          }
          return null;
      }
docs: Returns the date for {@code value}. Returns null if the value couldn't be
  parsed.