checkMessage(expected, "MyOrder.THIRD -> MyOrder.SECOND");

    expected = assertThrows(PotentialDeadlockException.class, () -> lock1.lock());
    checkMessage(expected, "MyOrder.THIRD -> MyOrder.FIRST");

    lock3.unlock();
    lock2.lock();

    expected = assertThrows(PotentialDeadlockException.class, () -> lock1.lock());
    checkMessage(expected, "MyOrder.SECOND -> MyOrder.FIRST");
  }