Exception in thread "main" java.lang.RuntimeException: javax.mail.AuthenticationFailedException: 535-5.7.8 Username and Password not accepted. Learn more at
535 5.7.8  https://support.google.com/mail/answer/14257 p63sm2092184pfp.65 - gsmtp

at com.gabjava.SendMailTLS.main(SendMailTLS.java:48)
Caused by: javax.mail.AuthenticationFailedException: 535-5.7.8 Username and Password not accepted. Learn more at
535 5.7.8  https://support.google.com/mail/answer/14257 p63sm2092184pfp.65 - gsmtp

at com.sun.mail.smtp.SMTPTransport$Authenticator.authenticate(SMTPTransport.java:648)
at com.sun.mail.smtp.SMTPTransport.protocolConnect(SMTPTransport.java:583)
at javax.mail.Service.connect(Service.java:297)
at javax.mail.Service.connect(Service.java:156)
at javax.mail.Service.connect(Service.java:105)
at javax.mail.Transport.send0(Transport.java:168)
at javax.mail.Transport.send(Transport.java:98)
at com.gabjava.SendMailTLS.main(SendMailTLS.java:43)

import java.util.Properties;

import javax.mail.Message;
import javax.mail.MessagingException;`enter code here`
import javax.mail.PasswordAuthentication;
import javax.mail.Session;
import javax.mail.Transport;
import javax.mail.internet.InternetAddress;
import javax.mail.internet.MimeMessage;

public class SendMailTLS {

    public static void main(String[] args) {

        final String username = "username";
        final String password = "userpassword";

        Properties props = new Properties();
        props.put("mail.smtp.auth", "true");
        props.put("mail.smtp.starttls.enable", "true");
        props.put("mail.smtp.host", "smtp.gmail.com");
        props.put("mail.smtp.port", "587");

        Session session = Session.getInstance(
            props,
            new javax.mail.Authenticator() {
                protected PasswordAuthentication   getPasswordAuthentication() {
                    return new PasswordAuthentication(username, password);
                }
            }
        );

        try {
            Message message = new MimeMessage(session);
            message.setFrom(new InternetAddress("From-email"));
            message.setRecipients(Message.RecipientType.TO, InternetAddress.parse("to-email"));
            message.setSubject("U Got this??");
            message.setText("Then u succeeded,nn Good Job! and keep it up!!");

            Transport.send(message);

            System.out.println("Done");

        }
        catch (MessagingException e) {
            throw new RuntimeException(e);
        }
    }
}