final SimpleDateFormat format = new SimpleDateFormat(pattern, locale);
            final Date date = toDate(str, format);
            if (date != null) {
                return date;
            }
        }
        final Date date = toDate(str, locale);
        if (date != null) {
            return date;
        }
        final Timestamp timestamp = toSqlTimestampJdbcEscape(str);

            final Date date = toDate(str, format);
            if (date != null) {
                return date;
            }
        }
        final Date date = toDate(str, locale);
        if (date != null) {
            return date;
        }
        final Time time = toSqlTimeJdbcEscape(str);
        if (time != null) {
            return new Date(time.getTime());
        }

    public void testToDate_ShortStyle() throws Exception {
        final Date date = toDate("10/9/7 11:49", Locale.JAPAN);
        assertThat(new SimpleDateFormat("yyyy/MM/dd HH:mm:ss").format(date), is("2010/09/07 11:49:00"));
    }

    /**
     * @throws Exception
     */
    @Test
    public void testToDate_MediumStyle() throws Exception {
        final Date date = toDate("2010/9/7 11:49:10", Locale.JAPAN);

            final Date date = toDate(str, format);
            if (date != null) {
                return date;
            }
        }
        final Date date = toDate(str, locale);
        if (date != null) {
            return date;
        }
        final java.sql.Date sqlDate = toSqlDateJdbcEscape(str);
        if (sqlDate != null) {

	if s3Err != ErrNone {
		return s3Err
	}

	// Extract date, if not present throw error.
	var date string
	if date = req.Header.Get(xhttp.AmzDate); date == "" {
		if date = r.Header.Get(xhttp.Date); date == "" {
			return ErrMissingDateHeader
		}
	}

	// Parse date header.
	t, e := time.Parse(iso8601Format, date)
	if e != nil {
		return ErrMalformedDate
	}

	// Query string.

			}
			// validating presign date field.
			if testCase.expectedPreSignValues.Date.UTC().Format(iso8601Format) != parsedPreSign.Date.UTC().Format(iso8601Format) {
				t.Errorf("Test %d: Expected date to be %v, but got %v", i+1, testCase.expectedPreSignValues.Date.UTC().Format(iso8601Format), parsedPreSign.Date.UTC().Format(iso8601Format))
			}
		}

	}

        final Date date = new Date(1);
        assertThat(new CopyOptions().convertValue(date, "aaa", Date.class), is((Object) date));
    }

    /**
     * @throws Exception
     */
    @Test
    public void testDateConverter() throws Exception {
        assertThat(new CopyOptions().dateConverter("yyyyMMdd").convertValue(new java.util.Date(0), "aaa", String.class),

    }

    protected Date getLastModified(final Map<String, Object> dataMap, final ResponseData responseData) {
        final Object lastModifiedObj = dataMap.get(fessConfig.getIndexFieldLastModified());
        if (lastModifiedObj instanceof Date) {
            return (Date) lastModifiedObj;
        }
        if (lastModifiedObj instanceof String) {

        }
    }

    protected String toRangeLocalDateTimeString(LocalDateTime date, String format) {
        if (format.contains("epoch_millis")) {
            return Long.toString(date.atZone(ZoneId.systemDefault()).toInstant().toEpochMilli());
        } else if (format.contains("date_optional_time")) {
            return DateTimeFormatter.ISO_DATE_TIME.format(date);
        } else {

        }).orElse(value);
    }

    public static Date date(final Long value) {
        if (value == null) {
            return null;
        }
        return new Date(value);
    }

    public static Date parseDate(final String value) {
        return parseDate(value, Constants.DATE_OPTIONAL_TIME);
    }

    public static Date parseDate(final String value, final String format) {