[jboss-jira] [JBoss JIRA] Created: (JBRULES-3222) Error unmarshalling knowledgeSession with Facts inserted in entry-points

[Stefan Wehner (JIRA)]

Error unmarshalling knowledgeSession with Facts inserted in entry-points
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                 Key: JBRULES-3222
                 URL: https://issues.jboss.org/browse/JBRULES-3222
             Project: Drools
          Issue Type: Bug
      Security Level: Public (Everyone can see)
          Components: drools-core
    Affects Versions: 5.3.0.Beta1, 5.2.0.Final
            Reporter: Stefan Wehner
            Assignee: Mark Proctor


When trying to marshall and then unmarshall a StatefulKnowledgeSession where a Fact has been inserted into an entry-point a NullPointerException is thrown:

java.lang.NullPointerException
	at org.drools.reteoo.RuleTerminalNodeLeftTuple.<init>(RuleTerminalNodeLeftTuple.java:151)
	at org.drools.reteoo.RuleTerminalNode.createLeftTuple(RuleTerminalNode.java:608)
	at org.drools.marshalling.impl.InputMarshaller.readLeftTuple(InputMarshaller.java:523)
	at org.drools.marshalling.impl.InputMarshaller.readFactHandles(InputMarshaller.java:373)
	at org.drools.marshalling.impl.InputMarshaller.readSession(InputMarshaller.java:230)
	at org.drools.marshalling.impl.DefaultMarshaller.unmarshall(DefaultMarshaller.java:92)
	at org.drools.marshalling.impl.DefaultMarshaller.unmarshall(DefaultMarshaller.java:63)
	at com.sample.DroolsTest.main(DroolsTest.java:50)

Provided is a testcase with two simple rules matching Fact objects directly and from the entry-point "facts".
A fact is inserted directly into the knowledgeSession and then it is marshalled and unmarshalled - which works fine.
Then a fact is inserted into a entry-point "facts" and the session is marshalled and unmarshalled - which throws the NPE.

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