*
     * @param <E>
     *            {@link Stack}の要素型
     * @return {@link Stack}の新しいインスタンス
     * @see Stack#Stack()
     */
    public static <E> Stack<E> newStack() {
        return new Stack<>();
    }

    /**
     * {@link SynchronousQueue}の新しいインスタンスを作成して返します。
     *
     * @param <E>
     *            {@link SynchronousQueue}の要素型

        }
      }

      // Don't delegate to schedule() because that enforces shutdown rules.
      val newTask = AwaitIdleTask()
      if (scheduleAndDecide(newTask, 0L, recurrence = false)) {
        taskRunner.kickCoordinator(this)
      }
      return newTask.latch
    }
  }

  private class AwaitIdleTask : Task("$okHttpName awaitIdle", cancelable = false) {
    val latch = CountDownLatch(1)

pkg runtime/trace, func IsEnabled() bool
pkg runtime/trace, func Log(context.Context, string, string)
pkg runtime/trace, func Logf(context.Context, string, string, ...interface{})
pkg runtime/trace, func NewTask(context.Context, string) (context.Context, *Task)
pkg runtime/trace, func StartRegion(context.Context, string) *Region
pkg runtime/trace, func WithRegion(context.Context, string, func())
pkg runtime/trace, method (*Region) End()