Java – Quartz Scheduler not stopping after shutdown

I'm using the currently latest quartz 1.8.3 on jboss 4.0.5.
The quartz jobs are persistent and saved into a local database.
When I call the shutdown or standby method on the executing quartz scheduler object
jobs still continue to execute by the scheduler, only that the jobs state is empty and the execution fails.

I would expect (at least according to quartz API documentation) that when I shutdown or make the scheduler standby, that jobs previously scheduled into the database will not be executed.

If calling shutdown or standby on the scheduler is not the method to achieve that, what is?

The jobs are not just finishing the execution but planned jobs continue to be triggered.

Here is additional info as asked:

public class QuartzNotificationsSchedulerBean implements NotificationsScheduler, ServletContextAware {
...
public String scheduleNotification(Notification notification) {

        // Schedule the job with the trigger
        try {
            // Define job instance  

                String      groupName   = this.createNotificationGroupName(notification);
                String      triggerName = this.createNoficationTriggerName(notification);
                String      jobName     = this.createNoficationJobName(notification);
                JobDetail   job         = new JobDetail(jobName, groupName , ScheduledNotificationJob.class);

                JobDataMap jobDataMap = new JobDataMap();
                jobDataMap.putAll(notification.getContext());     
                job.setJobDataMap(jobDataMap);

                Calendar notificationTime = notification.getTime();    

                Trigger trigger = new SimpleTrigger(triggerName, groupName , notificationTime.getTime());

                scheduler.scheduleJob(job, trigger);        

                return trigger.getName();           
        } catch (SchedulerException e) {
            throw new NotificationScheduleException(e, notification);
        }

        return null;
    }

public void setServletContext(ServletContext servletContext) {      
        this.sf = (SchedulerFactory) servletContext.getAttribute(QuartzInitializerListener.QUARTZ_FACTORY_KEY);

        try {
            scheduler =  sf.getScheduler();
            if(scheduler.isStarted() == false) {
                scheduler.start();
            }

        } catch (SchedulerException e) {        
            logger.error("Failed to load Quartz scheduler ", e);        
        }
    }
}

The following is a copy of the quartz configuration properties:

#============================================================================
# Configure Main Scheduler Properties  
#============================================================================

org.quartz.scheduler.instanceName = scheduler
org.quartz.scheduler.instanceId = AUTO
org.quartz.scheduler.wrapJobExecutionInUserTransaction = true

#============================================================================
# Configure ThreadPool  
#============================================================================

org.quartz.threadPool.class = org.quartz.simpl.SimpleThreadPool
org.quartz.threadPool.threadCount = 45
org.quartz.threadPool.threadPriority = 5

#============================================================================
# Configure JobStore  
#============================================================================

org.quartz.jobStore.misfireThreshold = 60000
org.quartz.jobStore.class = org.quartz.impl.jdbcjobstore.JobStoreTX
org.quartz.jobStore.driverDelegateClass = org.quartz.impl.jdbcjobstore.StdJDBCDelegate
#org.quartz.jobStore.useProperties = false
org.quartz.jobStore.dataSource = FOR_QUARTZ
org.quartz.jobStore.isClustered = true
org.quartz.jobStore.clusterCheckinInterval = 20000


#============================================================================
# Configure Datasources  
#============================================================================

org.quartz.dataSource.FOR_QUARTZ.jndiURL = java:jdbc/live-quartz

Here is a snippet from the web.xml where the quartz is initialized:

 <!--  START NOTIFICATION SERVICE -->
    <context-param>
        <param-name>config-file</param-name>
        <param-value>wm_quartz.properties</param-value>
    </context-param>
    <context-param>
        <param-name>shutdown-on-unload</param-name>
        <param-value>true</param-value>
    </context-param>
    <context-param>
        <param-name>start-scheduler-on-load</param-name>
        <param-value>true</param-value>
    </context-param>    

    <listener>
        <listener-class>org.quartz.ee.servlet.QuartzInitializerListener</listener-class>
    </listener> 

Thanks