Send Email from Java Program using personal GMAIL Account POP

For POP Settings, please refer to :
https://support.google.com/mail/troubleshooter/1668960?hl=en&ref_topic=3397500#ts=1665119,1665162

import java.util.Properties;

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;

public class PopSmtp {

public static void main(String[] args) {

final String username = "majith414@gmail.com";
//               I have 2 step authentication for gmail account
//
final String password = "jgasdgegndph12324safsavgzhvmbgvqxhw";


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("majith414@gmail.com"));
message.setRecipients(Message.RecipientType.TO,
InternetAddress.parse("majith414@gmail.com"));
message.setSubject("Testing Subject");
message.setText("Dear Ajith,"
+ "\n\n Test, please!");

Transport.send(message);

System.out.println("Done");

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