assertFalse(monitor.isOccupiedByCurrentThread());
    monitor.enter();
    try {
      assertTrue(monitor.isOccupiedByCurrentThread());

      doWaitScenarioSetUp();

      boolean interruptedBeforeCall = Thread.currentThread().isInterrupted();
      Outcome actualOutcome = doCall();
      boolean occupiedAfterCall = monitor.isOccupiedByCurrentThread();

      boolean expectedIsOccupiedByCurrentThread,
      int expectedOccupiedDepth) {
    assertEquals(expectedIsOccupied, monitor.isOccupied());
    assertEquals(expectedIsOccupiedByCurrentThread, monitor.isOccupiedByCurrentThread());
    assertEquals(expectedOccupiedDepth, monitor.getOccupiedDepth());
  }

  private static void verifyOccupiedMethodsInAnotherThread(
      Monitor monitor,
      boolean expectedIsOccupied,

      boolean expectedIsOccupiedByCurrentThread,
      int expectedOccupiedDepth) {
    assertEquals(expectedIsOccupied, monitor.isOccupied());
    assertEquals(expectedIsOccupiedByCurrentThread, monitor.isOccupiedByCurrentThread());
    assertEquals(expectedOccupiedDepth, monitor.getOccupiedDepth());
  }

  private static void verifyOccupiedMethodsInAnotherThread(
      Monitor monitor,
      boolean expectedIsOccupied,

    thread1.callAndAssertReturns(enterCount != 0, "isOccupied");
    thread1.callAndAssertReturns(enterCount != 0, "isOccupiedByCurrentThread");
    thread1.callAndAssertReturns(enterCount, "getOccupiedDepth");

    thread2.callAndAssertReturns(enterCount != 0, "isOccupied");
    thread2.callAndAssertReturns(false, "isOccupiedByCurrentThread");
    thread2.callAndAssertReturns(0, "getOccupiedDepth");
  }

  }

  /**
   * Attempts to execute all the listeners in {@link #listeners} while not holding the {@link
   * #monitor}.
   */
  private void dispatchListenerEvents() {
    if (!monitor.isOccupiedByCurrentThread()) {
      listeners.dispatch();
    }
  }

  private void enqueueStartingEvent() {
    listeners.enqueue(STARTING_EVENT);
  }

  private void enqueueRunningEvent() {

  }

  /**
   * Attempts to execute all the listeners in {@link #listeners} while not holding the {@link
   * #monitor}.
   */
  private void dispatchListenerEvents() {
    if (!monitor.isOccupiedByCurrentThread()) {
      listeners.dispatch();
    }
  }

  private void enqueueStartingEvent() {
    listeners.enqueue(STARTING_EVENT);
  }

  private void enqueueRunningEvent() {

            }
          });
    }

    /** Attempts to execute all the listeners in {@link #listeners}. */
    void dispatchListenerEvents() {
      checkState(
          !monitor.isOccupiedByCurrentThread(),
          "It is incorrect to execute listeners with the monitor held.");
      listeners.dispatch();
    }

    @GuardedBy("monitor")
    void checkHealthy() {

    return lock.isLocked();
  }

  /**
   * Returns whether the current thread is occupying this monitor (has entered more times than it
   * has left).
   */
  public boolean isOccupiedByCurrentThread() {
    return lock.isHeldByCurrentThread();
  }

  /**
   * Returns the number of times the current thread has entered this monitor in excess of the number