public javax.mail.Session newSession () { return javax.mail.Session.getInstance (System.getProperties ());
public javax.mail.Session newSession (Properties props) { javax.mail.Session session = javax.mail.Session.getInstance (props); session.setDebug (this.debugEnabled ()); return session;
    public javax.mail.Session newSession () {        return javax.mail.Session.getInstance (System.getProperties ());    }