if (date == null) {
            return StringUtil.EMPTY;
        }
        final SimpleDateFormat sdf = new SimpleDateFormat(Constants.ISO_DATETIME_FORMAT);
        sdf.setTimeZone(Constants.TIMEZONE_UTC);
        return sdf.format(date);
    }

    /**
     * Formats a LocalDateTime object to ISO datetime string format.
     *
     * @param date the LocalDateTime to format

        }
        if (obj instanceof String) {
            final SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd'T'HH:mm:ss.SSS'Z'");
            sdf.setTimeZone(TimeZone.getTimeZone("GMT"));
            try {
                return sdf.parse(obj.toString());
            } catch (final ParseException e) {
                if (logger.isDebugEnabled()) {

class UpdateReleasedVersionsIntegrationTest extends Specification {

    def format = new SimpleDateFormat('yyyyMMddHHmmssZ')

    @TempDir
    File tmpDir

    def setup() {
        format.timeZone = TimeZone.getTimeZone("UTC")
    }

    def "updated released version file has expected format"() {
        given:
        def releasedVersionsFile = new File(tmpDir, "released-versions.json")
        releasedVersionsFile << '''{

        val isoTimestampFormat = newSimpleDateFormatUTC("yyyy-MM-dd HH:mm:ss z")

        private
        fun newSimpleDateFormatUTC(pattern: String) = SimpleDateFormat(pattern).apply {
            timeZone = TimeZone.getTimeZone("UTC")
        }

        fun readBuildReceiptFromString(buildReceipt: String) =
            Properties().apply { load(buildReceipt.reader()) }

        const val buildReceiptFileName = "build-receipt.properties"

import static java.util.concurrent.TimeUnit.DAYS

class UpdateReleasedVersionsTest extends Specification {

    def format = new SimpleDateFormat('yyyyMMddHHmmssZ')

    def setup() {
        format.timeZone = TimeZone.getTimeZone("UTC")
    }

    def "final release is added to list"() {
        def snapshot = snapshot('4.3')
        def rc = releasedVersion('4.3-rc-1')
        def versions = releasedVersions(snapshot, rc, [])

        // Store original time zone
        TimeZone originalTimeZone = TimeZone.getDefault();

        try {
            // Change default time zone temporarily
            TimeZone newTimeZone = TimeZone.getTimeZone("America/New_York");
            TimeZone.setDefault(newTimeZone);

            // Create new provider instance to pick up the new default

        }
    }

    @Test
    public void test_createFinalTimeZoneProvider_withDifferentDefaultTimeZone() {
        // Given
        TimeZone testTimeZone = TimeZone.getTimeZone("America/New_York");
        TimeZone originalDefault = TimeZone.getDefault();

        try {
            // Change default timezone temporarily
            TimeZone.setDefault(testTimeZone);

import okhttp3.internal.http2.Header
import okio.Buffer
import okio.BufferedSource
import okio.Source

/** GMT and UTC are equivalent for our purposes. */
@JvmField
internal val UTC: TimeZone = TimeZone.getTimeZone("GMT")!!

internal fun threadFactory(
  name: String,
  daemon: Boolean,
): ThreadFactory =
  ThreadFactory { runnable ->
    Thread(runnable, name).apply {
      isDaemon = daemon
    }
  }

    /** Configuration path property key. */
    public static final String FESS_CONF_PATH = "fess.conf.path";

    /** UTC timezone constant. */
    public static final TimeZone TIMEZONE_UTC = TimeZone.getTimeZone("UTC");

    // ============================================================
    // LDAP Configuration Constants
    // ============================================================

    val servedDate = Date(System.currentTimeMillis() + TimeUnit.HOURS.toMillis(-2))
    val dateFormat: DateFormat = SimpleDateFormat("EEE dd-MMM-yyyy HH:mm:ss z", Locale.US)
    dateFormat.timeZone = TimeZone.getTimeZone("America/New_York")
    val lastModifiedString = dateFormat.format(lastModifiedDate)
    val servedString = dateFormat.format(servedDate)

    // This response should be conditionally cached.
    server.enqueue(