@Override
    public void setPreviousInAccessQueue(ReferenceEntry<K, V> previous) {
      this.previousAccess = previous;
    }
  }

  private static final class StrongWriteEntry<K, V> extends StrongEntry<K, V> {
    StrongWriteEntry(K key, int hash, @Nullable ReferenceEntry<K, V> next) {
      super(key, hash, next);
    }

    // The code below is exactly the same for each write entry type.