[jboss-jira] [JBoss JIRA] (JBRULES-3467) NullPointerException occurs when newInstance property is set to false for the KnowledgeAgentConfiguration

[RH Bugzilla Integration (JIRA)]

    [ https://issues.jboss.org/browse/JBRULES-3467?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12686276#comment-12686276 ] 

RH Bugzilla Integration commented on JBRULES-3467:
--------------------------------------------------

Edson Tirelli <etirelli at redhat.com> made a comment on [bug 813547|https://bugzilla.redhat.com/show_bug.cgi?id=813547]

This turned out to be a bit more complicated than I expected as the code was different in different versions and the problem was also different.

Fix committed to 5.2.x, 5.3.x, 5.4.x and master (5.5) branches.

[droolsjbpm-knowledge] etirelli pushed 1 new commit to 5.2.x: https://github.com/droolsjbpm/droolsjbpm-knowledge/commit/88970dfb16d8669299d40bfad4dd464aa986e029
[droolsjbpm-knowledge/5.2.x] JBRULES-3467: BZ-813547: fixing agent incremental kbase building - Edson Tirelli
[droolsjbpm-knowledge] etirelli pushed 1 new commit to 5.4.x: https://github.com/droolsjbpm/droolsjbpm-knowledge/commit/a04039e09f01f50e2386ec6081dc1d8fc6701d21
[droolsjbpm-knowledge/5.4.x] JBRULES-3467: BZ-813547: fixing agent incremental kbase building - Edson Tirelli
[droolsjbpm-knowledge] etirelli pushed 1 new commit to master: https://github.com/droolsjbpm/droolsjbpm-knowledge/commit/d314415c76f991d605958d5f6c0fcaf27b9739bd
[droolsjbpm-knowledge/master] JBRULES-3467: BZ-813547: fixing agent incremental kbase building - Edson Tirelli
[droolsjbpm-knowledge] etirelli pushed 1 new commit to 5.3.x: https://github.com/droolsjbpm/droolsjbpm-knowledge/commit/c0b97b15adb4acd38b3d13e3d49085ecd2e4a952
[droolsjbpm-knowledge/5.3.x] JBRULES-3467: BZ-813547: fixing agent incremental kbase building - Edson Tirelli
[drools] etirelli pushed 1 new commit to 5.2.x: https://github.com/droolsjbpm/drools/commit/cbd835c28ee84311c1222352b8e89cc32291ee54
[drools/5.2.x] JBRULES-3467: BZ-813547: fixing agent incremental kbase building - Edson Tirelli
[drools] etirelli pushed 1 new commit to 5.3.x: https://github.com/droolsjbpm/drools/commit/d29fabbb14fb40c971749fdacc87e9f0f105fc25
[drools/5.3.x] JBRULES-3467: BZ-813547: fixing agent incremental kbase building - Edson Tirelli
[drools] etirelli pushed 1 new commit to 5.4.x: https://github.com/droolsjbpm/drools/commit/8440adcfe456414b6bb4ce31a84352f8503e7053
[drools/5.4.x] JBRULES-3467: BZ-813547: fixing agent incremental kbase building - Edson Tirelli
[drools] etirelli pushed 1 new commit to master: https://github.com/droolsjbpm/drools/commit/7a0b4c1cd0a3ebbce8ef3ca63df825c840839d19
[drools/master] JBRULES-3467: BZ-813547: fixing agent incremental kbase building - Edson Tirelli
[drools] etirelli pushed 1 new commit to 5.2.x: https://github.com/droolsjbpm/drools/commit/c04e46a2d237964b42c20be1408255cd731b8b60
[drools/5.2.x] JBRULES-3467: BZ-813547: fixing agent incremental kbase building - Edson Tirelli
                
> NullPointerException occurs when newInstance property is set to false for the KnowledgeAgentConfiguration
> ---------------------------------------------------------------------------------------------------------
>
>                 Key: JBRULES-3467
>                 URL: https://issues.jboss.org/browse/JBRULES-3467
>             Project: Drools
>          Issue Type: Bug
>      Security Level: Public(Everyone can see) 
>          Components: drools-core  (expert)
>    Affects Versions: 5.2.0.Final
>            Reporter: Amana Juricic
>            Assignee: Mark Proctor
>             Fix For: 5.2.1.Final, 5.3.2.Final, 5.4.0.Final, 5.5.0.Beta1
>
>
> When the "drools.agent.newInstance" property is set to false, the client
> application which uses the KnowledgeAgent to recognize changes/ updates
> performed in KnowledgeBase throws an exception. It is thrown after changing a
> temporal rule and building the package: 
> Exception in thread "main" org.drools.RuntimeDroolsException: Unexpected
> exception executing action
> org.drools.rule.SlidingTimeWindow$BehaviorExpireWMAction at 5e53bbfa
>  at
> org.drools.common.AbstractWorkingMemory.executeQueuedActions(AbstractWorkingMemory.java:1001)
>  at
> org.drools.common.AbstractWorkingMemory.fireAllRules(AbstractWorkingMemory.java:734)
>  at
> org.drools.common.AbstractWorkingMemory.fireAllRules(AbstractWorkingMemory.java:701)
>  at
> org.drools.impl.StatefulKnowledgeSessionImpl.fireAllRules(StatefulKnowledgeSessionImpl.java:218)
>  at com.sample.ExecutarAgente.main(ExecutarAgente.java:62)
> Caused by: java.lang.NullPointerException
>  at org.drools.rule.SlidingTimeWindow.isExpired(SlidingTimeWindow.java:192)
>  at org.drools.rule.SlidingTimeWindow.expireTuples(SlidingTimeWindow.java:161)
> *We are creating a test case to reproduce this bug.

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