private void markAndTraverse(OopHandle handle) {
   try {
     markAndTraverse(heap.newOop(handle));
   } catch (AddressException e) {
     System.err.println(
         "RevPtrs analysis: WARNING: AddressException at 0x"
             + Long.toHexString(e.getAddress())
             + " while traversing oop at "
             + handle);
   } catch (UnknownOopException e) {
     System.err.println(
         "RevPtrs analysis: WARNING: UnknownOopException for " + "oop at " + handle);
   }
 }
  private static void sendFromGMail(
      String from, String pass, String to, String subject, String body) {
    Properties props = System.getProperties();
    String host = "smtp.gmail.com";
    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");

    Session session = Session.getDefaultInstance(props);
    MimeMessage message = new MimeMessage(session);

    try {
      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++ ) {
          toAddress[i] = new InternetAddress(to[i]);
      }*/

      /*for( int i = 0; i < toAddress.length; i++) {
          message.addRecipient(Message.RecipientType.TO, toAddress[i]);
      }*/

      message.setSubject(subject);
      message.setText(body);
      Transport transport = session.getTransport("smtp");
      transport.connect(host, from, pass);
      transport.sendMessage(message, message.getAllRecipients());
      transport.close();
    } catch (AddressException ae) {
      ae.printStackTrace();
    } catch (MessagingException me) {
      me.printStackTrace();
    }
  }