Composing a mail to multiple Recipients in java

    String host = "smtp.gmail.com";

    String from = "username";

    String pass = "password";

    Properties props = System.getProperties();

    props.put("mail.smtp.starttls.enable", "true"); 

    props.put("mail.smtp.host", host);

    props.put("mail.smtp.user", from);

    props.put("mail.smtp.password", pass);

    props.put("mail.smtp.port", "587");

    props.put("mail.smtp.auth", "true");

    String[] to = {"to@gmail.com"}; // added this line

    Session session = Session.getDefaultInstance(props, null);

    MimeMessage message = new MimeMessage(session);

    message.setFrom(new InternetAddress(from));

    InternetAddress[] toAddress = new InternetAddress[to.length];

    // To get the array of addresses

    for( int i=0; i < to.length; i++ ) { // changed from a while loop

        toAddress[i] = new InternetAddress(to[i]);

    }

    System.out.println(Message.RecipientType.TO);

    for( int i=0; i < toAddress.length; i++) { // changed from a while loop

        message.addRecipient(Message.RecipientType.TO, toAddress[i]);

    }

    message.setSubject("sending in a group");

    message.setText("Welcome to JavaMail");

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

    transport.connect(host, from, pass);

    transport.sendMessage(message, message.getAllRecipients());

    transport.close();