@Weak final CycleDetectingReentrantReadWriteLock readWriteLock;

    CycleDetectingReentrantReadLock(CycleDetectingReentrantReadWriteLock readWriteLock) {
      super(readWriteLock);
      this.readWriteLock = readWriteLock;
    }

    @Override
    public void lock() {
      aboutToAcquire(readWriteLock);
      try {
        super.lock();
      } finally {

  }

  /**
   * Creates a {@code Striped<ReadWriteLock>} with eagerly initialized, strongly referenced
   * read-write locks. Every lock is reentrant.
   *
   * @param stripes the minimum number of stripes (locks) required
   * @return a new {@code Striped<ReadWriteLock>}
   */
  public static Striped<ReadWriteLock> readWriteLock(int stripes) {
    return custom(stripes, ReentrantReadWriteLock::new);
  }

  }

  /**
   * Creates a {@code Striped<ReadWriteLock>} with eagerly initialized, strongly referenced
   * read-write locks. Every lock is reentrant.
   *
   * @param stripes the minimum number of stripes (locks) required
   * @return a new {@code Striped<ReadWriteLock>}
   */
  public static Striped<ReadWriteLock> readWriteLock(int stripes) {
    return custom(stripes, ReentrantReadWriteLock::new);
  }

    @Weak final CycleDetectingReentrantReadWriteLock readWriteLock;

    CycleDetectingReentrantReadLock(CycleDetectingReentrantReadWriteLock readWriteLock) {
      super(readWriteLock);
      this.readWriteLock = readWriteLock;
    }

    @Override
    public void lock() {
      aboutToAcquire(readWriteLock);
      try {
        super.lock();
      } finally {