private   void  sendMess(){
         file_attachment.setVisible(true);
        Properties prop =  new  Properties();
        prop.put("mail.smtp.host",smtp);
        prop.put("mail.smtp.user",login);
        prop.put("mail.smtp.auth","true");
        FileDataSource fds =  new  FileDataSource(filename);
        Session ses =  Session.getInstance(prop, null );
        System.out.println(smtp);
        System.out.println(login);
        System.out.println(pass);
        System.out.println(fds.getName());
        ses.setDebug(true);
        MimeMessage msg =  new  MimeMessage(ses);
        MimeBodyPart m1 =  new  MimeBodyPart();
        MimeBodyPart m2 =  new  MimeBodyPart();
        
         try  {
            InternetAddress a[] =  new  InternetAddress[]{ new  InternetAddress(to.getText()), new  InternetAddress(to.getText())};
             msg.setFrom( new  InternetAddress(from_mail));
            msg.setRecipient(Message.RecipientType.TO, a);// - тут ошибка
            msg.setSubject(subject.getText());
            m1.setText(body_mes.getText());//,"text/plain; Charset=Windows-1251"
            m2.setDataHandler( new  DataHandler(fds));
            m2.setFileName(fds.getName());
            Multipart mp =  new  MimeMultipart();
            msg.setSentDate( new  Date());
            mp.addBodyPart(m1);
            mp.addBodyPart(m2);
            msg.setContent(mp);
            Transport transport = ses.getTransport("smtp");
            transport.connect(smtp,login,pass);
            msg.saveChanges();
            transport.sendMessage(msg,msg.getAllRecipients());
            transport.close();
            JOptionPane.showMessageDialog( null ,"Сообщение отправлено","",JOptionPane.INFORMATION_MESSAGE);
        }  catch  (AddressException ex) {
            ex.printStackTrace();

            JOptionPane.showMessageDialog( null ,"Сообщение не отправлено","",JOptionPane.ERROR_MESSAGE);
        }  catch  (MessagingException ex) {
            ex.printStackTrace();

            JOptionPane.showMessageDialog( null ,"Сообщение не отправлено","",JOptionPane.ERROR_MESSAGE);
        }

    }