@SuppressWarnings({"unchecked", "nullness"})
        K castKey = (K) key;

        if (!isExpired(stamped)) {
          alertListenerIfPresent(castKey, value, RemovalCause.EXPLICIT);
          return value;
        }

        alertListenerIfPresent(castKey, value, RemovalCause.EXPIRED);
      }
      return null;
    }
  }

  @Override