[jboss-jira] [JBoss JIRA] Commented: (JBRULES-3138) NullPointerException on RuleFlowGroupImpl after a rollback on a StatefulKnowledgeSession

[RH Bugzilla Integration (JIRA)]

    [ https://issues.jboss.org/browse/JBRULES-3138?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12613859#comment-12613859 ] 

RH Bugzilla Integration commented on JBRULES-3138:
--------------------------------------------------

Cristiano Nicolai <cnicolai at redhat.com> made a comment on [bug 719783|https://bugzilla.redhat.com/show_bug.cgi?id=719783]

Detected problem on upstream Drools project version 5.2.0.Final when a rollback is executed on a Drools session, it fails to restore the RuleFlowNode instance, leaving a null reference to workingmemory attribute.


Problem will be tracked by the following Jira: JBRULES-3138

Provided a workaround until upstream version is released.

> NullPointerException on RuleFlowGroupImpl after a rollback on a StatefulKnowledgeSession
> ----------------------------------------------------------------------------------------
>
>                 Key: JBRULES-3138
>                 URL: https://issues.jboss.org/browse/JBRULES-3138
>             Project: Drools
>          Issue Type: Bug
>      Security Level: Public(Everyone can see) 
>          Components: drools-core
>    Affects Versions: 5.2.0.Final
>            Reporter: Cristiano Nicolai
>            Assignee: Mark Proctor
>         Attachments: process-test.zip
>
>
> After executing some action that causes the StatefulKnowledgeSession to rollback, a NullPointerExption is throw on RuleFlowGroupImpl.setActive(RuleFlowGroupImpl.java:121) when it tries to use the workingMemory object. It seems that RuleFlowGroupImpl is not correctly deserialized/recreated after the rollback.

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