[jboss-jira] [JBoss JIRA] (DROOLS-2150) QuartzSchedulerService NullPointerException

[Csaba Házi (JIRA)]

     [ https://issues.jboss.org/browse/DROOLS-2150?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Csaba Házi updated DROOLS-2150:
-------------------------------
    Steps to Reproduce: 
I have an example rule with Complex Event Processing:
rule "more than 3 processes in 5 minutes"
when
    Number(intValue > 3) from accumulate(
        pie: ProcessInstanceEvent(
            processId == "showcase_process", 
            state == ProcessInstance.STATE_ACTIVE) 
        over window:time(5m), 
        count(pie)
    )
then
	System.out.println("Send warning: " + drools.getRule().getName());
    notifier.sendWarning(drools.getRule().getName());
end

When a new event is fired the QuartzSchedulerService tries to persist TimerJobInstance at
org.jbpm.process.core.timer.impl.QuartzSchedulerService.internalSchedule(TimerJobInstance) method. During serialization NotSerializableException occurs and call the internalSchedule(...) to create InmemoryTimerJobInstanceDelegate.

The cause of NotSerializableException: org.jbpm.persistence.timer.GlobalJPATimerJobFactoryManager.createTimerJobInstance(Job, JobContext, Trigger, JobHandle, InternalSchedulerService) SelfRemovalJob reference to org.drools.core.reteoo.ObjectTypeNode$ExpireJob that is not serializable.

Restart the apllication and Quartz loads triggers from database. When the trigger is fired I got NPE exception:
Caused by: java.lang.NullPointerException at org.jbpm.process.core.timer.impl.QuartzSchedulerService$InmemoryTimerJobInstanceDelegate.call(QuartzSchedulerService.java:401)

org.drools.core.reteoo.ObjectTypeNode.ExpireJob is not Serializable unlike org.jbpm.process.instance.timer.TimerManager.ProcessJob.


  was:
I have an example rule with Complex Event Processing:
rule "more than 3 processes in 5 minutes"
when
    Number(intValue > 3) from accumulate(
        pie: ProcessInstanceEvent(
            processId == "showcase_process", 
            state == ProcessInstance.STATE_ACTIVE) 
        over window:time(5m), 
        count(pie)
    )
then
	System.out.println("Send warning: " + drools.getRule().getName());
    notifier.sendWarning(drools.getRule().getName());
end

When a new event is fired the QuartzSchedulerService tries to persist TimerJobInstance at
org.jbpm.process.core.timer.impl.QuartzSchedulerService.internalSchedule(TimerJobInstance) method. During serialization NotSerializableException occurs and call the internalSchedule(...) to create InmemoryTimerJobInstanceDelegate.

The cause of NotSerializableException: org.jbpm.persistence.timer.GlobalJPATimerJobFactoryManager.createTimerJobInstance(Job, JobContext, Trigger, JobHandle, InternalSchedulerService) SelfRemovalJob reference to org.drools.core.reteoo.ObjectTypeNode$ExpireJob that is not serializable.

Restart the apllication and Quartz loads triggers from database. When the trigger is fired I got NPE exception:
Caused by: java.lang.NullPointerException at org.jbpm.process.core.timer.impl.QuartzSchedulerService$InmemoryTimerJobInstanceDelegate.call(QuartzSchedulerService.java:401)




> QuartzSchedulerService NullPointerException
> -------------------------------------------
>
>                 Key: DROOLS-2150
>                 URL: https://issues.jboss.org/browse/DROOLS-2150
>             Project: Drools
>          Issue Type: Bug
>          Components: core engine
>    Affects Versions: 6.5.0.Final
>         Environment: jBPM 6 and Quartz timer
>            Reporter: Csaba Házi
>            Assignee: Mario Fusco
>
> 2017-11-23 10:52:11,064 INFO  [org.quartz.core.JobRunShell] (JbpmScheduler_Worker-4)    Job jbpm.Timer-ExpireJobContext-6 threw a JobExecutionException:   : org.quartz.JobExecutionException: Exception when executing scheduled job [See nested exception: java.lang.NullPointerException]
> 	at org.jbpm.process.core.timer.impl.QuartzSchedulerService$QuartzJob.execute(QuartzSchedulerService.java:341)
> 	at org.quartz.core.JobRunShell.run(JobRunShell.java:216)
> 	at org.quartz.simpl.SimpleThreadPool$WorkerThread.run(SimpleThreadPool.java:549)
> Caused by: java.lang.NullPointerException
> 	at org.jbpm.process.core.timer.impl.QuartzSchedulerService$InmemoryTimerJobInstanceDelegate.call(QuartzSchedulerService.java:401)
> 	at org.jbpm.process.core.timer.impl.QuartzSchedulerService$InmemoryTimerJobInstanceDelegate.call(QuartzSchedulerService.java:348)
> 	at org.jbpm.process.core.timer.impl.QuartzSchedulerService$QuartzJob.execute(QuartzSchedulerService.java:322)
> 	... 2 more



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