Calendar converter for date and time

DateAndTimeCalendarConverter.java

@Convert(Calendar.class)
public class DateAndTimeCalendarConverter extends LocaleBasedCalendarConverter {
   private final Localization localization;

   public DateAndTimeCalendarConverter(Localization localization) {
     super(localization);
     this.localization = localization;
   }
   public Calendar convert(String value, Class<? extends Calendar> type, ResourceBundle bundle) {
      if (Strings.nullToEmpty(value).length() > "dd/mm/yyyy".length()) {
        Locale locale = localization.getLocale();
        if (locale == null) {
            locale = Locale.getDefault();
        }
        
        DateFormat format = DateFormat.getDateTimeInstance(DateFormat.SHORT, locale);
        try {
            Date date = format.parse(value);
            Calendar calendar = new GregorianCalendar();
            calendar.setTime(date);
            return calendar;
        } catch (ParseException e) {
throw new ConversionError(MessageFormat.format(bundle.getString("is_not_a_valid_date"), value));
        }

      }
      return super.convert(value, type, bundle);
      
   }
}