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