@Override
    public boolean awaitTermination(long timeout, TimeUnit unit) throws InterruptedException {
      long nanos = unit.toNanos(timeout);
      synchronized (lock) {
        while (true) {
          if (shutdown && runningTasks == 0) {
            return true;
          } else if (nanos <= 0) {
            return false;
          } else {
            long now = System.nanoTime();

      // attributes are declared in the cookie string.
      if (deltaSeconds == Long.MIN_VALUE) {
        expiresAt = Long.MIN_VALUE
      } else if (deltaSeconds != -1L) {
        val deltaMilliseconds =
          if (deltaSeconds <= Long.MAX_VALUE / 1000) {
            deltaSeconds * 1000
          } else {
            Long.MAX_VALUE
          }
        expiresAt = currentTimeMillis + deltaMilliseconds

) {
  /** The total number of bytes consumed. */
  var total: Long = 0L
    private set

  /** The total number of bytes acknowledged by outgoing `WINDOW_UPDATE` frames. */
  var acknowledged: Long = 0L
    private set

  val unacknowledged: Long
    @Synchronized get() = total - acknowledged

  @Synchronized
  fun update(
    total: Long = 0,
    acknowledged: Long = 0,
  ) {
    check(total >= 0)

    } catch (e: IOException) {
      // No need to log, user.connectFailed() will already have been called. Just try again later.
      return state.policy.backoffDelayMillis.jitterBy(state.policy.backoffJitterMillis) * 1_000_000
    }
  }

  private fun Long.jitterBy(amount: Int): Long {
    return this + ThreadLocalRandom.current().nextInt(amount * -1, amount)
  }

    final int characteristics() {
      return spliterator.characteristics();
    }

    final long estimateSize() {
      return spliterator.estimateSize();
    }

    final Comparator<? super E> getComparator() {
      return spliterator.getComparator();
    }

    final long getExactSizeIfKnown() {
      return spliterator.getExactSizeIfKnown();
    }

   *
   * @since 20.0 (varargs overload since 2.0)
   */
  public static void checkArgument(
      boolean expression, String errorMessageTemplate, long p1, long p2) {
    if (!expression) {
      throw new IllegalArgumentException(lenientFormat(errorMessageTemplate, p1, p2));
    }
  }

  /**

func promDashCmd(ctx cli.Context) *cobra.Command {
	var opts clioptions.ControlPlaneOptions
	cmd := &cobra.Command{
		Use:   "prometheus",
		Short: "Open Prometheus web UI",
		Long:  `Open Istio's Prometheus dashboard`,
		Example: `  istioctl dashboard prometheus

  # with short syntax
  istioctl dash prometheus
  istioctl d prometheus`,
		RunE: func(cmd *cobra.Command, args []string) error {

 */
class Cache internal constructor(
  directory: Path,
  maxSize: Long,
  fileSystem: FileSystem,
  taskRunner: TaskRunner,
) : Closeable, Flushable {
  /** Create a cache of at most [maxSize] bytes in [directory]. */
  constructor(
    fileSystem: FileSystem,
    directory: Path,
    maxSize: Long,
  ) : this(
    directory,
    maxSize,
    fileSystem,
    TaskRunner.INSTANCE,

        nextOutFrame = outFramesIterator.next()
      }

      if (nextOutFrame != null && nextOutFrame.sequence == i) {
        val start = nextOutFrame.start
        var truncated: Boolean
        var end: Long
        if (outFramesIterator.hasNext()) {
          nextOutFrame = outFramesIterator.next()
          end = nextOutFrame.start
          truncated = false
        } else {
          end = outBytes.size.toLong()

	logCmd := &cobra.Command{
		Use:   "log [<type>/]<name>[.<namespace>]",
		Short: "Retrieves logging levels of the Envoy in the specified pod",
		Long:  "Retrieve information about logging levels of the Envoy instance in the specified pod, and update optionally",
		Example: `  # Retrieve information about logging levels for a given pod from Envoy.
  istioctl proxy-config log <pod-name[.namespace]>