问计时器和TimerTask未更新

EN

public void setKonfigurasi(String name, String value) {
    log.info(SERVLET_NAME + "Entering setKonfigurasi");
    amBean.setParam(name,value); //update the time into database
    //name = 'processFileConf|kodPT|userA|20140312 08:30 AM'
    // reschedule timer after configured by user
    try {
        String kodPT = name.substring(name.indexOf("|") + 1, name.indexOf("|",name.indexOf("|") + 1)); 
        String configStr = value.substring(2); //get the new time
        String currentStr = CommonUtil.getCurrentDate();
        DateFormat dateformat = new SimpleDateFormat("dd/MM/yyyy KK:mm:ss a");
        Date currentDate=new Date() ;
        Date configDate = dateformat.parse(currentStr+" "+configStr);
        long config = configDate.getTime();
        long current = currentDate.getTime();

        // today
        long delay = config-current;
        if (delay < 0)
            // tomorrow
            delay += (1000*60*60*24);

        // create the timer and timer task objects
        Timer timer = new Timer();
        timer.scheduleAtFixedRate(new TimerTask() { 
            public void run() { 
                System.out.println("showtime for "+kodPT);
                processFile("auto"+kodPT);
            } 
        }, delay, 1000*60*60*24);

        ServletContextEvent servletContextEvent = EtServletContextListener.getContext();
        ServletContext servletContext = servletContextEvent.getServletContext();
        servletContext.removeAttribute ("timer");
        servletContext.setAttribute ("timer", timer);

    } catch (Exception e) {
        log.error("Exception on date format : "+e.getMessage());
    }            
    log.info(SERVLET_NAME + "Exiting setKonfigurasi");
}