nulled.setNextInWriteQueue(nullEntry);
    nulled.setPreviousInWriteQueue(nullEntry);
  }

  /**
   * Notifies listeners that an entry has been automatically removed due to expiration, eviction, or
   * eligibility for garbage collection. This should be called every time expireEntries or
   * evictEntry is called (once the lock is released).
   */
  void processPendingNotifications() {
    RemovalNotification<K, V> notification;