no suitable method found for getInstance error in java mail api

I am using java mail api to send the mail but stuck with the following error ..

no suitable method found for getInstance(java.util,Properties,java.net.Authenticator)

And here is my code code snippet in java..

 Authenticator auth = new Authenticator() {

        public PasswordAuthentication getPasswordAuthentication() {
            return new PasswordAuthentication(userName, password.toCharArray());
        }
    };
    Session session = Session.getInstance(properties, auth);

I am getting the mentioned error on following line..

Session session = Session.getInstance(properties, auth);

Please help me . Thanks in advance..