this.strongReference = strongReference;
    }

    @Override
    Lock delegate() {
      return delegate;
    }

    @Override
    public Condition newCondition() {
      return new WeakSafeCondition(delegate.newCondition(), strongReference);
    }
  }

  /** Condition object that ensures a strong reference is retained to a specified object. */

 *
 * {@snippet :
 * public class SafeBox<V> {
 *   private V value;
 *   private final ReentrantLock lock = new ReentrantLock();
 *   private final Condition valuePresent = lock.newCondition();
 *   private final Condition valueAbsent = lock.newCondition();
 *
 *   public V get() throws InterruptedException {
 *     lock.lock();
 *     try {
 *       while (value == null) {
 *         valuePresent.await();
 *       }

              delay,
              unit);

      return testCondition;
    }

    static TestCondition create() {
      Lock lock = new ReentrantLock();
      Condition condition = lock.newCondition();
      return new TestCondition(lock, condition);
    }

    @Override
    public void await() throws InterruptedException {
      lock.lock();
      try {
        condition.await();