What to return if not null in JdbcTemplate?

Question

Java

What is better to return, which is correct, if not null?

public User getEmailByName(String name) {

        try {
            String sql = "SELECT email FROM user WHERE name=?";
            return jdbcTemplate.queryForObject(sql, new EmailByNameMapper(), name);

        } catch (EmptyResultDataAccessException e) {
            return null;
        }
    }

public class EmailByNameMapper implements RowMapper<User> {

    public User mapRow(ResultSet resultSet, int i) throws SQLException {

        User user = new User();
        user.setEmail(resultSet.getString("email"));
        return user;
    }

}

Answer 1

optional