*
     * @param millis
     *            the length of time to sleep in milliseconds
     * @throws InterruptedRuntimeException
     *             if any thread has interrupted the current thread.
     */
    public static void sleep(final long millis) {
        if (millis < 1L) {
            return;
        }
        try {
            Thread.sleep(millis);
        } catch (final InterruptedException e) {

  check(duration >= 0L) { "$name < 0" }
  val millis = unit.toMillis(duration)
  require(millis <= Integer.MAX_VALUE) { "$name too large" }
  require(millis != 0L || duration <= 0L) { "$name too small" }
  return millis.toInt()
}

internal fun checkDuration(
  name: String,
  duration: Duration,
): Int {
  check(!duration.isNegative()) { "$name < 0" }
  val millis = duration.inWholeMilliseconds

    LARGE(UNEXPECTED_HANG_DELAY_MILLIS * 2, (2 * UNEXPECTED_HANG_DELAY_MILLIS) + "ms"),
    MAX(Long.MAX_VALUE, "+oo");

    final long millis;
    final String label;

    Timeout(long millis, String label) {
      this.millis = millis;
      this.label = label;
    }

    @Override
    public String toString() {
      return label;
    }
  }

    /** The key of the configuration. e.g. false */
    String FRAMEWORK_DEBUG = "framework.debug";

    /** The key of the configuration. e.g. 0 */
    String TIME_ADJUST_TIME_MILLIS = "time.adjust.time.millis";

    /** The key of the configuration. e.g. true */
    String MAIL_SEND_MOCK = "mail.send.mock";

    /** The key of the configuration. e.g. localhost:25 */

    }
  }

  private static void assertNotInterrupted() {
    assertFalse(Thread.interrupted());
  }

  private static void requestInterruptIn(long millis) {
    InterruptionUtil.requestInterruptIn(millis, MILLISECONDS);
  }

  @CanIgnoreReturnValue
  private static Thread acquireFor(Lock lock, long duration, TimeUnit unit) {
    CountDownLatch latch = new CountDownLatch(1);

    final List<String> events = new ArrayList<>();

    @Override
    public long readMicros() {
      return NANOSECONDS.toMicros(instant);
    }

    void sleepMillis(int millis) {
      sleepMicros("U", MILLISECONDS.toMicros(millis));
    }

    void sleepMicros(String caption, long micros) {
      instant += MICROSECONDS.toNanos(micros);

    final List<String> events = new ArrayList<>();

    @Override
    public long readMicros() {
      return NANOSECONDS.toMicros(instant);
    }

    void sleepMillis(int millis) {
      sleepMicros("U", MILLISECONDS.toMicros(millis));
    }

    void sleepMicros(String caption, long micros) {
      instant += MICROSECONDS.toNanos(micros);

    ConsoleHandler().apply {
      level = Level.FINE
      formatter =
        object : SimpleFormatter() {
          override fun format(record: LogRecord) = String.format("[%1\$tF %1\$tT] %2\$s %n", record.millis, record.message)
        }
    }

  fun enable(
    loggerClass: String,
    handler: Handler = logHandler(),
  ): Closeable {
    val logger = Logger.getLogger(loggerClass)

      .toFormatter()

  private val offset = ZoneOffset.systemDefault()

  override fun format(record: LogRecord): String {
    val message = formatMessage(record)

    val time = Instant.ofEpochMilli(record.millis).atZone(offset)

    return if (record.thrown != null) {
      val sw = StringWriter(4096)
      val pw = PrintWriter(sw)
      record.thrown.printStackTrace(pw)

      private val SENT_MILLIS = "${Platform.get().getPrefix()}-Sent-Millis"

      /** Synthetic response header: the local time when the response was received. */
      private val RECEIVED_MILLIS = "${Platform.get().getPrefix()}-Received-Millis"
    }
  }

  private class CacheResponseBody(
    val snapshot: DiskLruCache.Snapshot,