JavaMail - com.sun.mail.smtp.SMjabaTPSendFailedException: 530 5.7.3 Client was not authenticated

import java.util.Properties;
import javax.mail.Authenticator;
import javax.mail.Message;
import javax.mail.PasswordAuthentication;
import javax.mail.Session;
import javax.mail.Transport;
import javax.mail.internet.InternetAddress;
import javax.mail.internet.MimeMessage;
 
public class Email {
    private Session getMailSession() throws Exception {
        Properties mailProperties = new Properties();
        Authenticator auth = new SMTPAuthenticator();
        
        mailProperties.setProperty("mail.transport.protocol", "smtp");
        mailProperties.setProperty("mail.smtp.host", SMTP_HOST);
        mailProperties.put("mail.smtp.port", "25");
        mailProperties.put("mail.smtp.auth", "true");
        return Session.getInstance(mailProperties, auth);
    }
 
    public void sendmail() throws Exception {
        //MimeMessage msg = new MimeMessage(getMailSession());
        Session mailSession = (Session)getMailSession();
        mailSession.setDebug(true);
        //MimeMessage msg = new MimeMessage(getMailSession());
        MimeMessage msg = new MimeMessage(mailSession);
        msg.setFrom(new InternetAddress(SENDER_ADDRESS));
        msg.addRecipient(Message.RecipientType.TO, 
                         new InternetAddress(RECIPIENT_ADDRESS));
        msg.setSubject("test mail subject");
        msg.setText("test mail text");
        Transport.send(msg);
    }
 
    public static void main(String[] av) {
        Email mail = new Email();
        try {
            mail.sendmail();
            System.out.println("mail send successfully");
        } catch (Exception e) {
            e.printStackTrace();
        }
    }
}
class SMTPAuthenticator extends javax.mail.Authenticator { 
    private final String SMTP_AUTH_USER = USERNAME;
    private final String SMTP_AUTH_PWD = PASSWORD;
    
    public PasswordAuthentication getPasswordAuthentication() {
            String username = SMTP_AUTH_USER;
            String password = SMTP_AUTH_PWD;
            return new PasswordAuthentication(username, password);
    }
}