How to Mock RowMapper?

I'm trying to mock this dao and I'm getting a NPE. I'm not sure if I'm not mocking something correctly or I'm using something inappropriately. I have this dao below:

@Repository
public class PersonDaoImpl extends AbstractDao implements PersonDao {

    private static final String SQL = "select * from personTable";
    @Override
    public List<Person> getAllPerson() {
        PersonRowMapper personRowMapper = new PersonRowMapper ();
        List<Person> personList = getNamedParameterJdbcTemplate().query(SQL, personRowMapper);

        return personList ;
    }

And this is my junit

public class PersonDaoImplTest {

    @Mock
    protected NamedParameterJdbcTemplate namedParameterJdbcTemplate;

    @Mock
    protected PersonRowMapper personRowMapper;

    @InjectMocks
    private PersonDaoImpl personDaoImpl;

    @Before
    public void setUp() {
        MockitoAnnotations.initMocks(this);
    }

    @Test
    public void shouldReturnPerson() {
        when(namedParameterJdbcTemplate.query(anyString(), Matchers.<RowMapper<PersonRowMapper>> any())).thenReturn(anyList());

        List<Person> resultList = personDaoImpl.getAllPerson();
        assertTrue(!resultList.isEmpty());
    }

It throws NPE on List<Person> resultList = personDaoImpl.getAllPerson();

What am I missing or not mocking correctly? Any help would be appreciated