IMAP Idle, ability to skip events?

I am implementing a mail listener in java, the listener injects IDLE until new mail arrives, it prints the email subject and goes back to IDLE again.

Is there a chance that I will miss events (new emails) between the two IDLEs that I issue?

For example, I tried to sleep for 10 seconds before logging into IDLE again, and in those 10 seconds I sent 2 emails to my Inbox which I control, and 10 seconds later when I returned to IDLE, mine MessageCountListener

only received once, for the first message. The second was skipped.

Maybe I shouldn't rely on MessageCountListener

?

       messageCountListener = new MessageCountListener() {
            //lets go into idle again and then handle the message
            public void messagesAdded(MessageCountEvent ev) {
                Message message = ev.getMessages()[0];
                try {
                    SimpleLogger.info("New message, subject: " + message.getSubject());
                } catch (MessagingException e) {
                    e.printStackTrace();
                }

                //GeneralUtility.threadSleep(8000);

                startImapIdle();
            }

      

        
        
        
      

    

startImapIdle()

is called initially and then re-called from messagesAdded()

as above.

private void startImapIdle() {
    SimpleLogger.info("Idling now");

    Runnable r = () -> {
        try {
            inboxFolder.idle(false);
        } catch (FolderClosedException e) {
            SimpleLogger.warn("Push Error: [DISCONNECT]", e);
            GeneralUtility.threadSleep(mailListenerRetryInterval);
            startListening(inboxFolder);
        } catch (StoreClosedException e) {
            SimpleLogger.warn("Push Error: [GLOBAL DISCONNECT]", e);
            GeneralUtility.threadSleep(mailListenerRetryInterval);
            initConnection();
        } catch (MessagingException e) {
            SimpleLogger.warn("Push Error: [NO IDLE]", e);
            GeneralUtility.threadSleep(mailListenerRetryInterval);
            initConnection();
        } catch (Exception e) {
            SimpleLogger.warn("Push Error: [UNKNOWN]", e);
            GeneralUtility.threadSleep(mailListenerRetryInterval);
            initConnection();
        }
    };

    imapIdleThread = new Thread(r);
    imapIdleThread.start();
}

      

        
        
        
      

    

edit: (new code)

   private void startImapIdle() {
        while(true) {
            try {
                SimpleLogger.info("Idling now");
                MailUtility.ensureFolderOpen(folder);
                folder.idle();
            } catch (FolderClosedException e) {
                SimpleLogger.warn("Push Error: [DISCONNECT]", e);
                GeneralUtility.threadSleep(mailListenerRetryInterval);
                startListening();
                break;
            } catch (StoreClosedException e) {
                SimpleLogger.warn("Push Error: [GLOBAL DISCONNECT]", e);
                GeneralUtility.threadSleep(mailListenerRetryInterval);
                initConnection();
                break;
            } catch (MessagingException e) {
                SimpleLogger.warn("Push Error: [NO IDLE]", e);
                GeneralUtility.threadSleep(mailListenerRetryInterval);
                initConnection();
                break;
            } catch (Exception e) {
                SimpleLogger.warn("Push Error: [UNKNOWN]", e);
                GeneralUtility.threadSleep(mailListenerRetryInterval);
                initConnection();
                break;
            }
        }
    }