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

import java.util.Properties;

import javax.mail.Authenticator;
import javax.mail.Message;
import javax.mail.MessagingException;
import javax.mail.PasswordAuthentication;
import javax.mail.Session;
import javax.mail.Transport;
import javax.mail.internet.InternetAddress;
import javax.mail.internet.MimeMessage;

import com.opensymphony.xwork2.ActionSupport;
import com.opensymphony.xwork2.ModelDriven;

@SuppressWarnings("serial")
public class RegisterAction {


    public String execute() {


         RegisterAction mailBean = new RegisterAction();

           String subject="Your username & password ";

           String message="Hi," + username;
          message+="\n \n Your username is " + email;
          message+="\n \n Your password is " + password;
          message+="\n \n Please login to the web site with your username and password.";
          message+="\n \n Thanks";
          message+="\n \n \n Regards";

           //Getting  FROM_MAIL

           String[] recipients = new String[1];
            recipients[0] = new String();
            recipients[0] = customer.getEmail();

           try{
          mailBean.sendMail(recipients,subject,message);

          return "success";
          }catch(Exception e){
           System.out.println("Error in sending mail:"+e);
          }

        return "failure";
    }

    public void sendMail( String recipients[ ], String subject, String message)
             throws MessagingException
              {
                boolean debug = false;

                 //Set the host smtp address

                 Properties props = new Properties();
                 props.put("mail.smtp.host", "smtp.gmail.com");
                 props.put("mail.smtp.starttls.enable", true);
                 props.put("mail.smtp.auth", true);

                // create some properties and get the default Session

                Session session = Session.getDefaultInstance(props, new Authenticator() {

                    protected PasswordAuthentication getPasswordAuthentication() {
                        return new PasswordAuthentication(
                                "username@gmail.com", "5373273437543");// Specify the Username and the PassWord
                    }

                });
                session.setDebug(debug);


                // create a message
                Message msg = new MimeMessage(session);


                InternetAddress[] addressTo = new InternetAddress[recipients.length];
                for (int i = 0; i < recipients.length; i++)
                {
                  addressTo[i] = new InternetAddress(recipients[i]);
                }

                msg.setRecipients(Message.RecipientType.TO, addressTo);

                // Optional : You can also set your custom headers  in the Email if you Want
                //msg.addHeader("MyHeaderName", "myHeaderValue");

                // Setting the Subject and Content Type
                msg.setSubject(subject);
                msg.setContent(message, "text/plain");

                //send message
                Transport.send(msg);

                System.out.println("Message Sent Successfully");
              }

}