Send email using java and google account

Following java class  send email using google account.

1) Please add the mail.jar in to class path.
    You can download  mail.jar  from here

2) Please give USER_NAME  - Google email account address
                       PASSSWORD  - password of Google email account
                       FROM_ADDRESS - From address of the email

import javax.mail.*;
import javax.mail.internet.*;
import java.util.Properties;

public class JavaEmailSender {

    private String emailAddressTo = new String();
    private String msgSubject = new String();
    private String msgText = new String();

    final String USER_NAME = "google-email-user@gmail.com";   //User name of the Goole(gmail) account
final String PASSSWORD = "email-account-password";  //Password of the Goole(gmail) account
final String FROM_ADDRESS = "from-email-address@gmail.com";  //From addresss

    public JavaEmailSender() {
    }

    public static void main(String[] args) {
    JavaEmailSender email = new JavaEmailSender();
    //Sending test email
    email.createAndSendEmail("lasanthals@gmail.com", "Test email subject",
      "Congratulations !!! \nThis is test email sent by java class.");
    }

    public void createAndSendEmail(String emailAddressTo, String msgSubject, String msgText) {
        this.emailAddressTo = emailAddressTo;
        this.msgSubject = msgSubject;
        this.msgText = msgText;
        sendEmailMessage();
    }
 
    private void sendEmailMessage() {
   
    //Create email sending properties
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(USER_NAME, PASSSWORD);
}
 });

try {

Message message = new MimeMessage(session);
message.setFrom(new InternetAddress(FROM_ADDRESS)); //Set from address of the email
message.setContent(msgText,"text/html"); //set content type of the email
 
    message.setRecipients(Message.RecipientType.TO,InternetAddress.parse(emailAddressTo)); //Set email recipient
 
message.setSubject(msgSubject); //Set email message subject
Transport.send(message); //Send email message

System.out.println("sent email successfully!");

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

    public void setEmailAddressTo(String emailAddressTo) {
        this.emailAddressTo = emailAddressTo;
    }

    public void setSubject(String subject) {
        this.msgSubject = subject;
    }

    public void setMessageText(String msgText) {
        this.msgText = msgText;
    }
 
}