private var servedDate: Date? = null
    private var servedDateString: String? = null

    /** The last modified date of the cached response, if known. */
    private var lastModified: Date? = null
    private var lastModifiedString: String? = null

    /**
     * The expiration date of the cached response, if known. If both this field and the max age are

	"time"
)

// RFC3339 a subset of the ISO8601 timestamp format. e.g 2014-04-29T18:30:38Z
const (
	iso8601TimeFormat     = "2006-01-02T15:04:05.000Z"    // Reply date format with millisecond precision.
	iso8601TimeFormatLong = "2006-01-02T15:04:05.000000Z" // Reply date format with nanosecond precision.
)

// ISO8601Format converts time 't' into ISO8601 time format expected in AWS S3 spec.
//

	// Add the algorithm condition, only accept AWS SignV4 Sha256.
	algorithmConditionStr := `["eq", "$x-amz-algorithm", "AWS4-HMAC-SHA256"]`
	// Add the date condition, only accept the current date.
	dateConditionStr := fmt.Sprintf(`["eq", "$x-amz-date", "%s"]`, t.Format(iso8601DateFormat))
	// Add the credential string, only accept the credential passed.

        this.executionProperties = executionProperties;
        return this;
    }

    @Override
    public Date getBuildStartTime() {
        return buildStartTime;
    }

    @Override
    public ProjectBuilderConfiguration setBuildStartTime(Date buildStartTime) {
        this.buildStartTime = buildStartTime;
        return this;
    }

{
    "properties": {
      "createdAt": {
        "type": "date",
        "format": "date_optional_time"
      },
      "updatedAt": {
        "type": "date",
        "format": "date_optional_time"
      }
    }

                + ",creationTime=" + new Date(this.creationTime) + ",lastAccessTime=" + new Date(this.lastAccessTime) + ",lastWriteTime="
                + new Date(this.lastWriteTime) + ",changeTime=" + new Date(this.changeTime) + ",endOfFile=" + this.endOfFile

        if (o instanceof Calendar) {
            return (Calendar) o;
        }
        final java.util.Date date = DateConversionUtil.toDate(o, pattern);
        if (date != null) {
            final Calendar cal = Calendar.getInstance();
            cal.setTime(date);
            return cal;
        }
        return null;
    }

    /**

    @Test
    public void test_ofNullable_withDate() {
        Date testValue = new Date();
        OptionalEntity<Date> result = OptionalUtil.ofNullable(testValue);

        assertNotNull(result);
        assertTrue(result.isPresent());
        assertEquals(testValue, result.get());
    }

    @Test
    public void test_ofNullable_withNullDate() {
        Date testValue = null;

{
  "fess_log.user_info" : {
    "aliases" : { },
    "mappings" : {
      "user_info" : {
        "properties" : {
          "createdAt" : {
            "type" : "date",
            "format" : "date_optional_time"
          },
          "updatedAt" : {
            "type" : "date",
            "format" : "date_optional_time"
          }
        }
      }
    },
    "settings" : {
      "index" : {

- Create a bucket lifecycle configuration which expires the objects under the prefix `old/` on `2020-01-01T00:00:00.000Z` date and the objects under `temp/` after 7 days.
- Enable bucket lifecycle configuration using `mc`:

```sh
$ mc ilm import play/testbucket <<EOF
{
    "Rules": [
        {
            "Expiration": {
                "Date": "2020-01-01T00:00:00.000Z"
            },
            "ID": "OldPictures",
            "Filter": {