'Bean does not have a public constructor that does not take parameters' error despite clearly having one?

Question

I have an EmailService EJB that has a very simple \'send_email\' method. I\'m receving the error in the title despite clearly having a public constructor that does not take para

Answer 1

Why you don't remove initialization from constructor into a @PostConstruct method?

@Stateless
public class EmailService {
    @EJB ContextFinder ctf;

    private static final String EMAIL_PASSWORD_JNDI_NAME = "EMAIL_PASSWORD";
    private static final String EMAIL_USERNAME_JNDI_NAME = "EMAIL_USERNAME";
    private static final String SMTP_SERVER_JNDI_NAME = "SMTP_SERVER";
    private static final String SMTP_PORT_JNDI_NAME = "SMTP_PORT";

    private String username;
    private String password;
    private String server;
    private Integer port;

    @PostConstruct
    public void init() { 
        username = (String) ctf.lookup(EMAIL_USERNAME_JNDI_NAME);
        password = (String) ctf.lookup(EMAIL_PASSWORD_JNDI_NAME);
        server = (String) ctf.lookup(SMTP_SERVER_JNDI_NAME);
        port = (Integer) ctf.lookup(SMTP_PORT_JNDI_NAME);
    }

    public void sendMail(String sendTo, String subject, String message) {
        // send mail
    }

}