*     {@code key} parameter. That way, we prevent the key from being garbage collected in the
     *     case of weak keys. If we create a new entry with a key that is null at construction time,
     *     we're not sure if entry will necessarily ever be garbage collected.
     * @param newNext entry in the same bucket
     * @param key the key to copy from the original entry to the new one. Use this in preference to

     *     {@code key} parameter. That way, we prevent the key from being garbage collected in the
     *     case of weak keys. If we create a new entry with a key that is null at construction time,
     *     we're not sure if entry will necessarily ever be garbage collected.
     * @param newNext entry in the same bucket
     * @param key the key to copy from the original entry to the new one. Use this in preference to