final V value = e.value;
            removeList(entryIndexOf(e));
            e.clear();
            return value;
        }
        return null;
    }

    /**
     * Removes the entry at the specified index.
     *
     * @param index
     *            the index
     * @return the value of the entry at the specified index
     */
    public V removeAt(final int index) {