Java - Compilar un archivo .java y un .jar juntos Javamail

package com.ipn;

import java.util.logging.Level;

import java.util.logging.Logger;

import javax.mail.MessagingException;

import com.ipn.*;

public class Principal{

public static void main(String[] args) throws MessagingException

{

  Utilerias u = new Utilerias();

  String correoDestinatario = "webappdevescom@gmail.com";

  String asunto ="Ejercicio17/08/2016";

  String textoDelCorreo = "Si se pudo :v";

  u.enviarMail(correoDestinatario, asunto, textoDelCorreo);

}

}

package com.ipn;

import java.util.Properties;

import javax.mail.Message;

import javax.mail.MessagingException;

import javax.mail.Session;

import javax.mail.internet.InternetAddress;

import javax.mail.internet.MimeMessage;

import javax.mail.Transport;

public class Utilerias{

public void enviarMail(String correoDestinatario, String asunto, String textoDelCorreo) throws MessagingException{

try{

Properties p = new Properties();

p.setProperty("mail.smtp.host", "smtp.gmail.com");

p.setProperty("mail.smtp.starttls.enable", "true");

p.setProperty("mail.smtp.port", "587");

p.setProperty("mail.smtp.user", "nomeacuerdo569@gmail.com");

p.setProperty("mail.smtp.auth", "true");

Session session = Session.getDefaultInstance(p);

MimeMessage m = new MimeMessage(session);

m.setFrom (new InternetAddress("nomeacuerdo569@gmail.com") );

m.addRecipient (Message.RecipientType.TO, new InternetAddress( "webappdevescom@gmail.com"));

m.setSubject(asunto);

m.setText(textoDelCorreo);

Transport t = session.getTransport("smtp");

t.connect("nomeacuerdo569@gmail.com", "manamana");

t.sendMessage(m, m.getAllRecipients() );

t.close();

}

catch(Exception e){

}

}

}