*
     * @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

# special script :: absolute mode: $(2014/07/10), relative mode: addDay(3).addMonth(4)
# The milliseconds for (relative or absolute) adjust time (set only when test) @LongType *dynamic in development
time.adjust.time.millis = 0

# ----------------------------------------------------------
#                                                      Mail
#                                                     ------

    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;
    }
  }

# special script :: absolute mode: $(2014/07/10), relative mode: addDay(3).addMonth(4)
# The milliseconds for (relative or absolute) adjust time (set only when test) @LongType *dynamic in development
time.adjust.time.millis = 0

# ----------------------------------------------------------
#                                                      Mail
#                                                     ------

# special script :: absolute mode: $(2014/07/10), relative mode: addDay(3).addMonth(4)
# The milliseconds for (relative or absolute) adjust time (set only when test) @LongType *dynamic in development
time.adjust.time.millis = 0

# ----------------------------------------------------------
#                                                      Mail
#                                                     ------

# special script :: absolute mode: $(2014/07/10), relative mode: addDay(3).addMonth(4)
# The milliseconds for (relative or absolute) adjust time (set only when test) @LongType *dynamic in development
time.adjust.time.millis = 0

# ----------------------------------------------------------
#                                                      Mail
#                                                     ------

    adapter. (thanks kwuollett)
 *  Add a media type class to OkHttp.
 *  Change custom header prefix:

    ```
    X-Android-Sent-Millis is now OkHttp-Sent-Millis
    X-Android-Received-Millis is now OkHttp-Received-Millis
    X-Android-Response-Source is now OkHttp-Response-Source
    X-Android-Selected-Transport is now OkHttp-Selected-Transport
    ```

    /** 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);