[jboss-jira] [JBoss JIRA] (DROOLS-576) NullPointerException in ActivationTimerInputMarshaller.deserialize()

[Mario Fusco (JIRA)]

     [ https://issues.jboss.org/browse/DROOLS-576?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Mario Fusco reassigned DROOLS-576:
----------------------------------

    Assignee: Mario Fusco  (was: Mark Proctor)


> NullPointerException in ActivationTimerInputMarshaller.deserialize()
> --------------------------------------------------------------------
>
>                 Key: DROOLS-576
>                 URL: https://issues.jboss.org/browse/DROOLS-576
>             Project: Drools
>          Issue Type: Bug
>    Affects Versions: 6.2.0.Beta1
>         Environment: RETEOO engine
>            Reporter: Toshiya Kobayashi
>            Assignee: Mario Fusco
>
> With the following conditions:
> - A persisted ksession
> - RETEOO engine
> - ksession is disposed while a timer is activated
> - ksession is loaded with a new kbase which doesn't have a rule which associated with the timer
> ActivationTimerInputMarshaller.deserialize() throws a NullPointerException so failed to load the ksession.
> {noformat}
> java.lang.RuntimeException: Unable to load session snapshot
> 	at org.drools.persistence.SessionMarshallingHelper.loadSnapshot(SessionMarshallingHelper.java:88) ~[classes/:na]
> 	at org.drools.persistence.SingleSessionCommandService.initExistingKnowledgeSession(SingleSessionCommandService.java:239) ~[classes/:na]
> 	at org.drools.persistence.SingleSessionCommandService.<init>(SingleSessionCommandService.java:172) ~[classes/:na]
> 	at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method) [na:1.7.0_67]
> 	at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:57) [na:1.7.0_67]
> 	at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45) [na:1.7.0_67]
> 	at java.lang.reflect.Constructor.newInstance(Constructor.java:526) [na:1.7.0_67]
> 	at org.drools.persistence.jpa.KnowledgeStoreServiceImpl.buildCommandService(KnowledgeStoreServiceImpl.java:122) [classes/:na]
> 	at org.drools.persistence.jpa.KnowledgeStoreServiceImpl.loadKieSession(KnowledgeStoreServiceImpl.java:90) [classes/:na]
> 	at org.drools.persistence.jpa.KnowledgeStoreServiceImpl.loadKieSession(KnowledgeStoreServiceImpl.java:39) [classes/:na]
> 	at org.kie.internal.persistence.jpa.JPAKnowledgeService.loadStatefulKnowledgeSession(JPAKnowledgeService.java:130) [kie-internal-6.2.0-SNAPSHOT.jar:6.2.0-SNAPSHOT]
> 	at org.drools.persistence.timer.integrationtests.TimerAndCalendarTest.testTimerWithRemovingRule(TimerAndCalendarTest.java:340) [test-classes/:na]
> 	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[na:1.7.0_67]
> ...
> Caused by: java.lang.NullPointerException: null
> 	at org.drools.core.common.Scheduler$ActivationTimerInputMarshaller.deserialize(Scheduler.java:216) ~[drools-core-6.2.0-SNAPSHOT.jar:6.2.0-SNAPSHOT]
> 	at org.drools.core.marshalling.impl.ProtobufInputMarshaller.readTimer(ProtobufInputMarshaller.java:700) ~[drools-core-6.2.0-SNAPSHOT.jar:6.2.0-SNAPSHOT]
> 	at org.drools.core.marshalling.impl.ProtobufInputMarshaller.readSession(ProtobufInputMarshaller.java:282) ~[drools-core-6.2.0-SNAPSHOT.jar:6.2.0-SNAPSHOT]
> 	at org.drools.core.marshalling.impl.ProtobufInputMarshaller.readSession(ProtobufInputMarshaller.java:155) ~[drools-core-6.2.0-SNAPSHOT.jar:6.2.0-SNAPSHOT]
> 	at org.drools.core.marshalling.impl.ProtobufMarshaller.unmarshall(ProtobufMarshaller.java:110) ~[drools-core-6.2.0-SNAPSHOT.jar:6.2.0-SNAPSHOT]
> 	at org.drools.core.marshalling.impl.ProtobufMarshaller.unmarshall(ProtobufMarshaller.java:54) ~[drools-core-6.2.0-SNAPSHOT.jar:6.2.0-SNAPSHOT]
> 	at org.drools.persistence.SessionMarshallingHelper.loadSnapshot(SessionMarshallingHelper.java:83) ~[classes/:na]
> 	... 44 common frames omitted
> {noformat}
> Probably we may silently ignore the timer when leftTuple is not found.



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