Problem with timer service

[arnold_maderthaner]

Hi !

I tried to use the timer service in wildfly 8.1.0 final but I get some unexpected results.

Here my sample code:

package my.class;

import java.text.SimpleDateFormat;

import java.util.Date;

import javax.annotation.PostConstruct;

import javax.annotation.PreDestroy;

import javax.annotation.Resource;

import javax.ejb.ScheduleExpression;

import javax.ejb.Singleton;

import javax.ejb.Startup;

import javax.ejb.Timeout;

import javax.ejb.Timer;

import javax.ejb.TimerConfig;

import javax.ejb.TimerService;

import javax.interceptor.InvocationContext;

import org.slf4j.Logger;

import org.slf4j.LoggerFactory;

@Singleton

@Startup

public class MyTimerBean {

  public static Logger log = LoggerFactory.getLogger(MyTimerBean.class);

  @Resource

  private TimerService timerService;

  @Timeout

  public void scheduler(Timer timer) {

  Date currentTime = new Date();

  SimpleDateFormat simpleDateFormat = new SimpleDateFormat(

  "yyyy.MM.dd G 'at' HH:mm:ss z");

  log.info("TimeoutExample.scheduler() " + timer.getInfo()

  + simpleDateFormat.format(currentTime));

  }

  @PostConstruct

  public void initialize(InvocationContext ctx) {

  ScheduleExpression se = new ScheduleExpression();

  // Set schedule to every 3 seconds (starting at second 0 of every

  // minute).

  se.hour("*").minute("*").second("0/3");

  timerService.createCalendarTimer(se, new TimerConfig(

  "EJB timer service timeout at ", false));

  }

  @PreDestroy

  public void stop() {

  log.info("EJB Timer: Stop timers.");

  for (Timer timer : timerService.getTimers()) {

  System.out.println("Stopping timer: " + timer.getInfo());

  timer.cancel();

  }

  }

}

The issue is that the timer is called way too often (and sometimes I get as TimerConfig.getInfo() = null).

Here the log output that I get:

2015-02-12 14:00:18,008 INFO  my.class.MyTimerBean TimeoutExample.scheduler() null2015.02.12 AD at 14:00:18 UTC
2015-02-12 14:00:18,015 INFO  my.class.MyTimerBean TimeoutExample.scheduler() null2015.02.12 AD at 14:00:18 UTC
2015-02-12 14:00:18,791 INFO  my.class.MyTimerBean TimeoutExample.scheduler() info2015.02.12 AD at 14:00:18 UTC
2015-02-12 14:00:18,796 INFO  my.class.MyTimerBean TimeoutExample.scheduler() null2015.02.12 AD at 14:00:18 UTC
2015-02-12 14:00:18,802 INFO  my.class.MyTimerBean TimeoutExample.scheduler() info2015.02.12 AD at 14:00:18 UTC
2015-02-12 14:00:18,807 INFO  my.class.MyTimerBean TimeoutExample.scheduler() null2015.02.12 AD at 14:00:18 UTC
2015-02-12 14:00:19,007 INFO  my.class.MyTimerBean TimeoutExample.scheduler() null2015.02.12 AD at 14:00:19 UTC
2015-02-12 14:00:19,014 INFO  my.class.MyTimerBean TimeoutExample.scheduler() null2015.02.12 AD at 14:00:19 UTC
2015-02-12 14:00:20,010 INFO  my.class.MyTimerBean TimeoutExample.scheduler() null2015.02.12 AD at 14:00:20 UTC
2015-02-12 14:00:20,015 INFO  my.class.MyTimerBean TimeoutExample.scheduler() null2015.02.12 AD at 14:00:20 UTC
2015-02-12 14:00:21,003 INFO  my.class.MyTimerBean TimeoutExample.scheduler() EJB timer service timeout at 2015.02.12 AD at 14:00:21 UTC
2015-02-12 14:00:21,011 INFO  my.class.MyTimerBean TimeoutExample.scheduler() null2015.02.12 AD at 14:00:21 UTC
2015-02-12 14:00:21,017 INFO  my.class.MyTimerBean TimeoutExample.scheduler() null2015.02.12 AD at 14:00:21 UTC
2015-02-12 14:00:22,008 INFO  my.class.MyTimerBean TimeoutExample.scheduler() null2015.02.12 AD at 14:00:22 UTC
2015-02-12 14:00:22,015 INFO  my.class.MyTimerBean TimeoutExample.scheduler() null2015.02.12 AD at 14:00:22 UTC
2015-02-12 14:00:23,009 INFO  my.class.MyTimerBean TimeoutExample.scheduler() null2015.02.12 AD at 14:00:23 UTC
2015-02-12 14:00:23,016 INFO  my.class.MyTimerBean TimeoutExample.scheduler() null2015.02.12 AD at 14:00:23 UTC
2015-02-12 14:00:24,006 INFO  my.class.MyTimerBean TimeoutExample.scheduler() EJB timer service timeout at 2015.02.12 AD at 14:00:24 UTC
2015-02-12 14:00:24,012 INFO  my.class.MyTimerBean TimeoutExample.scheduler() null2015.02.12 AD at 14:00:24 UTC
2015-02-12 14:00:24,018 INFO  my.class.MyTimerBean TimeoutExample.scheduler() null2015.02.12 AD at 14:00:24 UTC
2015-02-12 14:00:25,010 INFO  my.class.MyTimerBean TimeoutExample.scheduler() null2015.02.12 AD at 14:00:25 UTC
2015-02-12 14:00:25,016 INFO  my.class.MyTimerBean TimeoutExample.scheduler() null2015.02.12 AD at 14:00:25 UTC
2015-02-12 14:00:26,008 INFO  my.class.MyTimerBean TimeoutExample.scheduler() null2015.02.12 AD at 14:00:26 UTC
2015-02-12 14:00:26,014 INFO  my.class.MyTimerBean TimeoutExample.scheduler() null2015.02.12 AD at 14:00:26 UTC
2015-02-12 14:00:27,002 INFO  my.class.MyTimerBean TimeoutExample.scheduler() EJB timer service timeout at 2015.02.12 AD at 14:00:27 UTC
2015-02-12 14:00:27,009 INFO  my.class.MyTimerBean TimeoutExample.scheduler() null2015.02.12 AD at 14:00:27 UTC
2015-02-12 14:00:27,015 INFO  my.class.MyTimerBean TimeoutExample.scheduler() null2015.02.12 AD at 14:00:27 UTC
2015-02-12 14:00:28,008 INFO  my.class.MyTimerBean TimeoutExample.scheduler() null2015.02.12 AD at 14:00:28 UTC
2015-02-12 14:00:28,013 INFO  my.class.MyTimerBean TimeoutExample.scheduler() null2015.02.12 AD at 14:00:28 UTC
2015-02-12 14:00:28,794 INFO  my.class.MyTimerBean TimeoutExample.scheduler() info2015.02.12 AD at 14:00:28 UTC
2015-02-12 14:00:28,799 INFO  my.class.MyTimerBean TimeoutExample.scheduler() info2015.02.12 AD at 14:00:28 UTC
2015-02-12 14:00:28,805 INFO  my.class.MyTimerBean TimeoutExample.scheduler() null2015.02.12 AD at 14:00:28 UTC
2015-02-12 14:00:28,810 INFO  my.class.MyTimerBean TimeoutExample.scheduler() null2015.02.12 AD at 14:00:28 UTC
2015-02-12 14:00:29,008 INFO  my.class.MyTimerBean TimeoutExample.scheduler() null2015.02.12 AD at 14:00:29 UTC
2015-02-12 14:00:29,014 INFO  my.class.MyTimerBean TimeoutExample.scheduler() null2015.02.12 AD at 14:00:29 UTC

anyone can help on this issue ?

[arnold_maderthaner]

seems like to be a bug in wildfly 8.1.0. when I deploy the same code in wildfly 8.2.0 it works as expected.