[jboss-jira] [JBoss JIRA] Updated: (JBRULES-2299) Retracting events using PseudoClockScheduler causes ClassCastException

[Maciej Prochniak (JIRA)]

     [ https://jira.jboss.org/jira/browse/JBRULES-2299?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Maciej Prochniak updated JBRULES-2299:
--------------------------------------

    Attachment: PseudoSchedulerRemoveJobTest.java


test case demonstrating erronous behaviour

> Retracting events using PseudoClockScheduler causes ClassCastException
> ----------------------------------------------------------------------
>
>                 Key: JBRULES-2299
>                 URL: https://jira.jboss.org/jira/browse/JBRULES-2299
>             Project: Drools
>          Issue Type: Bug
>      Security Level: Public(Everyone can see) 
>          Components: drools-core, drools-core (fusion)
>    Affects Versions: 5.1.0.M1
>            Reporter: Maciej Prochniak
>            Assignee: Mark Proctor
>         Attachments: PseudoSchedulerRemoveJobTest.java
>
>
> When job is scheduled e.g. in sth like not A(this after [1s,10s] $a)
> and relevant event is retracted from working memory, the job should be removed. 
> However, PseudoClockScheduler usues queue containing wrappers for job (ScheduledJob), 
> and remove method tries to remove job without this wrapper which causes:
> java.lang.ClassCastException: org.drools.common.Scheduler$DuractionJob incompatible with org.drools.time.impl.PseudoClockScheduler$ScheduledJob
> 	at org.drools.time.impl.PseudoClockScheduler$ScheduledJob.compareTo(PseudoClockScheduler.java:188)
> 	at java.util.PriorityQueue.remove(PriorityQueue.java:355)
> 	at org.drools.time.impl.PseudoClockScheduler.removeJob(PseudoClockScheduler.java:121)
> 	at org.drools.common.Scheduler.removeAgendaItem(Scheduler.java:62)
> 	at org.drools.common.DefaultAgenda.removeScheduleItem(DefaultAgenda.java:451)
> 	at org.drools.common.ScheduledAgendaItem.remove(ScheduledAgendaItem.java:198)
> 	at org.drools.reteoo.RuleTerminalNode.retractLeftTuple(RuleTerminalNode.java:289)
> 	at org.drools.reteoo.SingleLeftTupleSinkAdapter.doPropagateRetractLeftTuple(SingleLeftTupleSinkAdapter.java:131)
> 	at org.drools.reteoo.SingleLeftTupleSinkAdapter.propagateRetractLeftTuple(SingleLeftTupleSinkAdapter.java:42)
> 	at org.drools.reteoo.NotNode.retractLeftTuple(NotNode.java:276)
> 	at org.drools.reteoo.ObjectTypeNode.retractObject(ObjectTypeNode.java:234)
> 	at org.drools.reteoo.EntryPointNode.retractObject(EntryPointNode.java:195)
> 	at org.drools.common.AbstractWorkingMemory.retract(AbstractWorkingMemory.java:1207)
> 	at org.drools.common.AbstractWorkingMemory.retract(AbstractWorkingMemory.java:1161)
> 	at org.drools.impl.StatefulKnowledgeSessionImpl.retract(StatefulKnowledgeSessionImpl.java:237)
> 	at pl.touk.droolsTest.PseudoSchedulerRemoveJobTest.testRule(PseudoSchedulerRemoveJobTest.java:61)
> ...more
> Solution would be probably to wrap job which should be removed

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