public V put(final Integer key, final V value)
    {
        return put((int)key, value);
    }
@Test
    void shouldCopyConstructAndBeEqual()
    {
        final int[] testEntries = { 3, 1, 19, 7, 11, 12, 7 };

        for (final int testEntry : testEntries)
        {
            intToObjectMap.put(testEntry, String.valueOf(testEntry));
        }

        final Int2ObjectHashMap<String> mapCopy = new Int2ObjectHashMap<>(intToObjectMap);
        assertThat(mapCopy, is(intToObjectMap));
    }