How do I retune the amount of Spring JPA records? [duplicate]

I want to return the value of playlists records in the database, but that code did not work.

public interface PlaylistDao extends JpaRepository<Playlist, Long> {

    @Query("select count(*) from Playlist")
    public int verifica();
}

@Service
@Transactional
public class PlaylistServiceImpl implements PlaylistService {

    @Autowired
    private PlaylistDao dao;

    public int verifica(){
        return dao.verifica();
    }
}