How to update bot in production mode?

[Clevero]

Hey, I thought about updating my bot while he is still in production mode and could possibly do something at the moment.

I came out with this solution:

Creating a new class that is responsible for interactions with the server console

public class BotMaster extends Thread {

    private BotSession session;

    public void run(){

        Scanner scanner = new Scanner(System.in);
        String c;
        while((c = scanner.nextLine()) != null){
            if(c.equals("stop")){

                System.out.println("[INFO] Start shutting down this instance");
                this.session.close();
                System.out.println("[OK] Closed session. Up to now, we cannot receive any updates. Shutting down program when there are no more pending actions");
                while(EchoHandler.isInUse()){
                    try {
                        Thread.sleep(1000L);
                    } catch (InterruptedException e) {
                        // TODO Auto-generated catch block
                        e.printStackTrace();
                    }//end catch()
                }//end while()
                System.out.println("[OK] Shutting down full instance");
                scanner.close();
                currentThread().interrupt();
                break;
            }//end if()
        }//end while()

    }//end run()

    public void setSession(BotSession session){
        this.session = session;
    }//end setSession()

}//end class

Added also one method to my updatehandler

private static int pendingActions;

public static boolean isInUse(){
        return !(EchoHandler.pendingActions == 0);
}//end isInUse()

Every time onUpdateReceived() is called, pendingActions is counted up, and before end of the method call it's also counted down

My Main.java

public static void main(String[] args) throws IOException, InterruptedException {
        BotSession session= null;
        BotMaster master = new BotMaster();
        master.start();
        TelegramBotsApi telegramBotsApi = new TelegramBotsApi();
        try {
            session = telegramBotsApi.registerBot(new EchoHandler());
            master.setSession(session);

        } catch (TelegramApiException e) {
            BotLogger.error(LOGTAG, e);
            System.out.println(e.getApiResponse());

        }//end catch()
        while(master.isAlive()){

        }//end while()
        System.exit(-1);
    }//end main()

How I use it

• type stop into the server console <- now this instance cannot receive any updates. But it can send something
• next instance is started <- this instance is now responsible for new updates.
• the old instance will shut down when all pending actions are processed

Has anybody a better way to update bots in production mode?