[jboss-user] [Beginners Corner] - NoSuchMethodError when calling from a Schedulable

[realberen]

Hello,
I've made a ScheduleService that implements Schedulable and to start with I want it to be my cron-substitute. The function I call is:

	public String importCSV(int limit) {
		importCSV i = new importCSV();
		i.importFromDB(limit);
		return "OK";
	}

where importCSV is found through

import saers.util.*;

importCSV.importFromDB() is defined as:
	public void importFromDB(int limit)

I've set up an mbean for SchedulerService and one based on org.jboss.varia.scheduler.Scheduler. When it is called I get the exception listed under in the logs. The main problem seems to be:

Caused by: java.lang.NoSuchMethodError: saers.util.importCSV.importFromDB(I)V

but as I mentioned, it is already defined:
	public void importFromDB(int limit)

so that seems correct, it takes an integer and returns void. Why am I getting a NoSuchMethodError??

Here is the complete log:

2006-12-19 11:29:03,009 DEBUG [org.jboss.varia.scheduler.Scheduler$Listener] MBeanListener.handleNotification(), notification: javax.management.timer.TimerNotification[source=jboss:service=Timer][type=Schedule][message=Scheduler Notification]
2006-12-19 11:29:03,010 DEBUG [org.jboss.varia.scheduler.Scheduler$Listener] Scheduler is started: true
2006-12-19 11:29:03,010 DEBUG [org.jboss.varia.scheduler.Scheduler$Listener] MBean Arguments are: []
2006-12-19 11:29:03,010 DEBUG [org.jboss.varia.scheduler.Scheduler$Listener] MBean Arguments Types are: []
11:29:03,040 ERROR [Scheduler$Listener] Invoke of the Schedulable MBean failed
javax.management.RuntimeErrorException
        at org.jboss.mx.interceptor.ReflectedDispatcher.handleInvocationExceptions(ReflectedDispatcher.java:178)
        at org.jboss.mx.interceptor.ReflectedDispatcher.invoke(ReflectedDispatcher.java:163)
        at org.jboss.mx.server.Invocation.dispatch(Invocation.java:94)
        at org.jboss.mx.server.Invocation.invoke(Invocation.java:86)
        at org.jboss.mx.server.AbstractMBeanInvoker.invoke(AbstractMBeanInvoker.java:264)
        at org.jboss.mx.server.MBeanServerImpl.invoke(MBeanServerImpl.java:659)
        at org.jboss.varia.scheduler.Scheduler$MBeanListener.handleNotification(Scheduler.java:1346)
        at sun.reflect.GeneratedMethodAccessor3.invoke(Unknown Source)
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
        at java.lang.reflect.Method.invoke(Method.java:585)
        at org.jboss.mx.notification.NotificationListenerProxy.invoke(NotificationListenerProxy.java:153)
        at $Proxy10.handleNotification(Unknown Source)
        at javax.management.NotificationBroadcasterSupport.handleNotification(NotificationBroadcasterSupport.java:221)
        at javax.management.NotificationBroadcasterSupport.sendNotification(NotificationBroadcasterSupport.java:184)
        at javax.management.timer.Timer.sendNotification(Timer.java:1295)
        at javax.management.timer.Timer.notifyAlarmClock(Timer.java:1264)
        at javax.management.timer.TimerAlarmClock.run(Timer.java:1347)
        at java.util.TimerThread.mainLoop(Timer.java:512)
        at java.util.TimerThread.run(Timer.java:462)
Caused by: java.lang.NoSuchMethodError: saers.util.importCSV.importFromDB(I)V
        at saers.scheduler.SchedulerService.importCSV(SchedulerService.java:53)
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
        at java.lang.reflect.Method.invoke(Method.java:585)
        at org.jboss.mx.interceptor.ReflectedDispatcher.invoke(ReflectedDispatcher.java:155)
        ... 17 more
2006-12-19 11:29:03,040 ERROR [org.jboss.varia.scheduler.Scheduler$Listener] Invoke of the Schedulable MBean failed
javax.management.RuntimeErrorException
        at org.jboss.mx.interceptor.ReflectedDispatcher.handleInvocationExceptions(ReflectedDispatcher.java:178)
        at org.jboss.mx.interceptor.ReflectedDispatcher.invoke(ReflectedDispatcher.java:163)
        at org.jboss.mx.server.Invocation.dispatch(Invocation.java:94)
        at org.jboss.mx.server.Invocation.invoke(Invocation.java:86)
        at org.jboss.mx.server.AbstractMBeanInvoker.invoke(AbstractMBeanInvoker.java:264)
        at org.jboss.mx.server.MBeanServerImpl.invoke(MBeanServerImpl.java:659)
        at org.jboss.varia.scheduler.Scheduler$MBeanListener.handleNotification(Scheduler.java:1346)
        at sun.reflect.GeneratedMethodAccessor3.invoke(Unknown Source)
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
        at java.lang.reflect.Method.invoke(Method.java:585)
        at org.jboss.mx.notification.NotificationListenerProxy.invoke(NotificationListenerProxy.java:153)
        at $Proxy10.handleNotification(Unknown Source)
        at javax.management.NotificationBroadcasterSupport.handleNotification(NotificationBroadcasterSupport.java:221)
        at javax.management.NotificationBroadcasterSupport.sendNotification(NotificationBroadcasterSupport.java:184)
        at javax.management.timer.Timer.sendNotification(Timer.java:1295)
        at javax.management.timer.Timer.notifyAlarmClock(Timer.java:1264)
        at javax.management.timer.TimerAlarmClock.run(Timer.java:1347)
        at java.util.TimerThread.mainLoop(Timer.java:512)
        at java.util.TimerThread.run(Timer.java:462)
Caused by: java.lang.NoSuchMethodError: saers.util.importCSV.importFromDB(I)V
        at saers.scheduler.SchedulerService.importCSV(SchedulerService.java:53)
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
        at java.lang.reflect.Method.invoke(Method.java:585)
        at org.jboss.mx.interceptor.ReflectedDispatcher.invoke(ReflectedDispatcher.java:155)
        ... 17 more


Cheers

    Nik

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