So I am making a new API that sends UUIDs from the application through Email when you Sign-up.

@Service
public class MailSender {

    @Autowired
    private JavaMailSender sender;

    public void sendEmail(String email, String subject, String body) {
        try {

            SimpleMailMessage message = new SimpleMailMessage();
            message.setFrom("[email protected]");
            message.setTo(email);
            message.setSubject(subject);
            message.setText(body);


            sender.send(message);

            System.out.println("Mail sent to: " + email);
        } catch (Exception e) {
            e.printStackTrace(System.out);
        }
    }

}

@SpringApplication
@Controller
public class AnotherClass {
 public void sendEmail(User user) {
        try {
            sender.sendEmail(user.getEmail(), "COINIFY ID", user.getId());
        } catch (Exception e) {
            e.printStackTrace(System.out);
        }
}

Getting a NullPointerException because JavaMailSender is null.

Can’t fix it for the life of me.