javax.mail.AuthenticationFailedException: failed to connect, no password specified?

Question

This program attempts to send e-mail but throws a run time exception:

javax.mail.AuthenticationFailedException: failed to connect, no password specified?
         


        

Answer 1

In addition to RMT's answer. I also had to modify the code a bit.

1. Transport.send should be accessed statically
2. therefor, transport.connect did not do anything for me, I only needed to set the connection info in the initial Properties object.

here is my sample send() methods. The config object is just a dumb data container.

public boolean send(String to, String from, String subject, String text) {
    return send(new String[] {to}, from, subject, text);
}

public boolean send(String[] to, String from, String subject, String text) {

    Properties props = new Properties();
    props.put("mail.smtp.auth", "true");
    props.put("mail.smtp.host", config.host);
    props.put("mail.smtp.user", config.username);
    props.put("mail.smtp.port", config.port);
    props.put("mail.smtp.password", config.password);

    Session session = Session.getInstance(props, new SmtpAuthenticator(config));

    try {
        Message message = new MimeMessage(session);
        message.setFrom(new InternetAddress(from));
        InternetAddress[] addressTo = new InternetAddress[to.length];
        for (int i = 0; i < to.length; i++) {
            addressTo[i] = new InternetAddress(to[i]);
        }
        message.setRecipients(Message.RecipientType.TO, addressTo);
        message.setSubject(subject);
        message.setText(text);
        Transport.send(message);
    } catch (MessagingException e) {
        e.printStackTrace();
        return false;
    }
    return true;
}