K castKey = (K) key;

      alertListenerIfPresent(castKey, value.getValue(), RemovalCause.EXPIRED);
      cachingHashMap.remove(key);
      return null;
    }
  }

  private V getOrLoad(K key) throws ExecutionException {
    V value = get(key);
    if (value != null) {
      return value;
    }
    return load(key);
  }

  @SuppressWarnings("GoodTime") // timestamps as numeric primitives