@SuppressWarnings("ThreadPriorityCheck") // TODO: b/175898629 - Consider onSpinWait.
  void awaitTimedWaiting(Thread thread) {
    while (true) {
      switch (thread.getState()) {
        case BLOCKED:
        case NEW:
        case RUNNABLE:
        case WAITING:
          Thread.yield();
          break;
        case TIMED_WAITING:
          return;
        case TERMINATED:

    sendRequest(methodName, arguments);
    assertThat(getResponse(methodName).getThrowable()).isInstanceOf(expected);
  }

  /**
   * Causes this thread to call the named method, and asserts that this thread becomes blocked on
   * the lock-like object. The lock-like object must have a method equivalent to {@link
   * java.util.concurrent.locks.ReentrantLock#hasQueuedThread(Thread)}.
   */

    // This should wake up waiter1 and cause the waiter1 node to be removed.
    waiter1.interrupt();

    waiter1.join();
    waiter2.awaitWaiting(); // should still be blocked

    LockSupport.unpark(waiter2); // spurious wakeup
    waiter2.awaitWaiting(); // should eventually re-park

    future.set(null);
    waiter2.join();
  }

  @SuppressWarnings("ThreadPriorityCheck") // TODO: b/175898629 - Consider onSpinWait.
  void awaitTimedWaiting(Thread thread) {
    while (true) {
      switch (thread.getState()) {
        case BLOCKED:
        case NEW:
        case RUNNABLE:
        case WAITING:
          Thread.yield();
          break;
        case TIMED_WAITING:
          return;
        case TERMINATED:

    // This should wake up waiter1 and cause the waiter1 node to be removed.
    waiter1.interrupt();

    waiter1.join();
    waiter2.awaitWaiting(); // should still be blocked

    LockSupport.unpark(waiter2); // spurious wakeup
    waiter2.awaitWaiting(); // should eventually re-park

    future.set(null);
    waiter2.join();
  }

        .contains("Service FailRunService [FAILED] has failed in the RUNNING state");
  }

  /**
   * Tests that a ServiceManager can be fully shut down if one of its failure listeners is slow or
   * even permanently blocked.
   */
  public void testListenerDeadlock() throws InterruptedException {
    CountDownLatch failEnter = new CountDownLatch(1);
    CountDownLatch failLeave = new CountDownLatch(1);

  internal fun removeStream(streamId: Int): Http2Stream? {
    withLock {
      val stream = streams.remove(streamId)

      // The removed stream may be blocked on a connection-wide window update.
      notifyAll()

      return stream
    }
  }

  internal fun updateConnectionFlowControl(read: Long) {
    withLock {
      readBytes.update(total = read)

           * the lock) until after it's scheduled and the runningTask field is set.
           */
          if (requireNonNull(runningTask).isCancelled()) {
            // task may have been cancelled while blocked on the lock.
            return;
          }
          AbstractScheduledService.this.runOneIteration();
        } catch (Throwable t) {
          restoreInterruptIfIsInterruptedException(t);
          try {

           * the lock) until after it's scheduled and the runningTask field is set.
           */
          if (requireNonNull(runningTask).isCancelled()) {
            // task may have been cancelled while blocked on the lock.
            return;
          }
          AbstractScheduledService.this.runOneIteration();
        } catch (Throwable t) {
          restoreInterruptIfIsInterruptedException(t);
          try {

    intend to ship a public API for these features, but we don't want to hold OkHttp 5.0.0 until
    those APIs are stable.

 *  Fix: Change `MockWebServer.close()` to cancel ongoing calls that are blocked on a delay.

 *  Upgrade: [Okio 3.13.0][okio_3_13_0].

This release also stabilizes many APIs in the `mockwebserver3` artifact that's new in 5.0.