NotFoundExcepiton throws when convert parameter failure in ParamConverter implementation

public class LocalDateParamConverter implements ParamConverter<LocalDate> {
    @Override
    public LocalDate fromString(String value) {
        try {
            return DateTimeUtil.parseDate(value);
        } catch (Exception e) {
            throw new IllegalArgumentException("'" +value + "' can not be convert to LocalDate");
        }
    }

    @Override
    public String toString(LocalDate value) {
        return DateTimeUtil.formatDate(value);
    }
}