javax.mail.AuthenticationFailedException: failed to connect, no password specified?

Try to create an javax.mail.Authenticator Object, and send that in with the properties object to the Session object.

Authenticator edit:

You can modify this to accept a username and password and you can store them there, or where ever you want.

public class SmtpAuthenticator extends Authenticator {
public SmtpAuthenticator() {

    super();
}

@Override
public PasswordAuthentication getPasswordAuthentication() {
 String username = "user";
 String password = "password";
    if ((username != null) && (username.length() > 0) && (password != null) 
      && (password.length   () > 0)) {

        return new PasswordAuthentication(username, password);
    }

    return null;
}

In your class where you send the email:

SmtpAuthenticator authentication = new SmtpAuthenticator();
javax.mail.Message msg = new MimeMessage(Session
                    .getDefaultInstance(emailProperties, authenticator));

You need to add the Object Authentication as the Parameter to the Session. such as

Session session = Session.getDefaultInstance(props, 
    new javax.mail.Authenticator(){
        protected PasswordAuthentication getPasswordAuthentication() {
            return new PasswordAuthentication(
                "[email protected]", "XXXXX");// Specify the Username and the PassWord
        }
});

now You will not get this kind of Exception....

javax.mail.AuthenticationFailedException: failed to connect, no password specified?

Your email session should be provided an authenticator instance as below

Session session = Session.getDefaultInstance(props,
    new Authenticator() {
        protected PasswordAuthentication  getPasswordAuthentication() {
        return new PasswordAuthentication(
                    "[email protected]", "password");
                }
    });

a complete example is here http://bharatonjava.wordpress.com/2012/08/27/sending-email-using-java-mail-api/