@Override
    public Object getObject(final int columnIndex) throws SQLException {
        return mergeResultSet.getValue(columnIndex, Object.class);
    }
@Test
    void assertGetObjectWithShort() throws SQLException {
        short result = (short) 0;
        when(mergeResultSet.getValue(1, short.class)).thenReturn(result);
        assertThat(shardingSphereResultSet.getObject(1, short.class), is(result));
        when(mergeResultSet.getValue(1, Short.class)).thenReturn(result);
        assertThat(shardingSphereResultSet.getObject(1, Short.class), is(result));
    }