[jboss-jira] [JBoss JIRA] Updated: (JBRULES-2331) StatefulKnowledgeSession unmarshal fails with NPE

[Justin Waugh (JIRA)]

     [ https://jira.jboss.org/jira/browse/JBRULES-2331?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Justin Waugh updated JBRULES-2331:
----------------------------------

    Attachment: test.zip


> StatefulKnowledgeSession unmarshal fails with NPE
> -------------------------------------------------
>
>                 Key: JBRULES-2331
>                 URL: https://jira.jboss.org/jira/browse/JBRULES-2331
>             Project: Drools
>          Issue Type: Bug
>      Security Level: Public(Everyone can see) 
>          Components: drools-core  (expert)
>    Affects Versions: 5.0.1.FINAL, 5.1.0.M1
>         Environment: Windows, JDK 1.6
>            Reporter: Justin Waugh
>            Assignee: Mark Proctor
>         Attachments: test.zip
>
>
> The following rule being present in the knowledge base causes the StatefulKnowledgeSession to fail to unmarshall with an NPE:
> package test.drl
> rule "dummy_rule"
> 	when
> 		eval( false )
> 	then
> end
> Here is the stack trace:
> java.lang.NullPointerException
> 	at org.drools.marshalling.impl.InputMarshaller.readLeftTuple(InputMarshaller.java:440)
> 	at org.drools.marshalling.impl.InputMarshaller.readFactHandles(InputMarshaller.java:345)
> 	at org.drools.marshalling.impl.InputMarshaller.readSession(InputMarshaller.java:207)
> 	at org.drools.marshalling.impl.DefaultMarshaller.unmarshall(DefaultMarshaller.java:75)
> 	at org.drools.marshalling.impl.DefaultMarshaller.unmarshall(DefaultMarshaller.java:47)
> 	at test.DroolsSerializationBugTest.testDroolsSerializationBug(DroolsSerializationBugTest.java:87)
> 	at test.DroolsSerializationBugTest.main(DroolsSerializationBugTest.java:28)
> Test case attached.
> Fails against 5.0.1 and 5.1.0M1

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