*/
    protected Entry<K, V> removeList(final int index) {
        final Entry<K, V> e = listTable[index];
        final int numMoved = size - index - 1;
        if (numMoved > 0) {
            System.arraycopy(listTable, index + 1, listTable, index, numMoved);
        }
        listTable[--size] = null;
        return e;
    }

    /**
     * Ensures capacity when the size exceeds the threshold.