void setAccessTime(long time);

  /** Returns the next entry in the access queue. */
  ReferenceEntry<K, V> getNextInAccessQueue();

  /** Sets the next entry in the access queue. */
  void setNextInAccessQueue(ReferenceEntry<K, V> next);

  /** Returns the previous entry in the access queue. */
  ReferenceEntry<K, V> getPreviousInAccessQueue();

  /** Sets the previous entry in the access queue. */

    previous.setNextInAccessQueue(next);
    next.setPreviousInAccessQueue(previous);
  }

  // Guarded By Segment.this
  static <K, V> void nullifyAccessOrder(ReferenceEntry<K, V> nulled) {
    ReferenceEntry<K, V> nullEntry = nullEntry();
    nulled.setNextInAccessQueue(nullEntry);
    nulled.setPreviousInAccessQueue(nullEntry);
  }

    @Override
    public ReferenceEntry<K, V> getNextInAccessQueue() {
      return nextAccess;
    }

    @Override
    public void setNextInAccessQueue(ReferenceEntry<K, V> next) {
      this.nextAccess = next;
    }

    private ReferenceEntry<K, V> previousAccess = nullEntry();

    @Override

    @Override
    public ReferenceEntry<K, V> getNextInAccessQueue() {
      return nextAccess;
    }

    @Override
    public void setNextInAccessQueue(ReferenceEntry<K, V> next) {
      this.nextAccess = next;
    }

    private ReferenceEntry<K, V> previousAccess = nullEntry();

    @Override