[jboss-jira] [JBoss JIRA] (DROOLS-372) InstantiationError during condition evaluation in Drools 6.0.0.Final

[RH Bugzilla Integration (JIRA)]

    [ https://issues.jboss.org/browse/DROOLS-372?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12991004#comment-12991004 ] 

RH Bugzilla Integration commented on DROOLS-372:
------------------------------------------------

Rajesh Rajasekaran <rrajasek at redhat.com> changed the Status of [bug 1040007|https://bugzilla.redhat.com/show_bug.cgi?id=1040007] from VERIFIED to CLOSED

> InstantiationError during condition evaluation in Drools 6.0.0.Final
> --------------------------------------------------------------------
>
>                 Key: DROOLS-372
>                 URL: https://issues.jboss.org/browse/DROOLS-372
>             Project: Drools
>          Issue Type: Bug
>      Security Level: Public(Everyone can see) 
>    Affects Versions: 6.0.0.Final
>         Environment: reproduced on both jdk 6 and jdk 7
>            Reporter: Loic Albertin
>            Assignee: Mario Fusco
>             Fix For: 6.0.1.Final
>
>         Attachments: drools-issue.zip
>
>
> Kindly find bellow the initial discussion from rules-user at list.jboss.org
> In addition I attach a sample project that reproduce the error. 
> To run it simply type 'mvn clean install exec:java'.
> An interesting thing is that on my environment the issue always appears at the 21st insertion. 
> {quote}
> Hi all,
> I'm migrating from an old Drools 5.1 version to 6.0.0.Final. Sometimes (I don't really get under which conditions as sometimes it works), I'm facing an InstantiationError exception when I insert a fact into a stateful kie session. This exception is thrown by a generated class named ConditionEvaluator<UUID> which doesn't help for debugging!
> The inserted object is a basic POJO (named JasmineEventEB) except for an attribute named "value" which accept any "Serializable" object and which is causing the issue.
> The rule condition is quite simple
> $e : JasmineEventEB(probe == "Button:pris" && value == "1")
> In debugging I found that it failed when evaluating the value == "1" part. I can also confirm that the value for the actually inserted JasmineEventEB is a string.
> The stacktrace is:
> {noformat}
> java.lang.InstantiationError: java.io.Serializable
>         at ConditionEvaluatorae1a73837e8146bda23004a0450e2e52.evaluate(Unknown Source)
>         at org.drools.core.rule.constraint.MvelConstraint.evaluate(MvelConstraint.java:212)
>         at org.drools.core.rule.constraint.MvelConstraint.isAllowed(MvelConstraint.java:169)
>         at org.drools.core.reteoo.AlphaNode.assertObject(AlphaNode.java:134)
>         at org.drools.core.reteoo.CompositeObjectSinkAdapter.doPropagateAssertObject(CompositeObjectSinkAdapter.java:502)
>         at org.drools.core.reteoo.CompositeObjectSinkAdapter.propagateAssertObject(CompositeObjectSinkAdapter.java:387)
>         at org.drools.core.reteoo.AlphaNode.assertObject(AlphaNode.java:138)
>         at org.drools.core.reteoo.CompositeObjectSinkAdapter.doPropagateAssertObject(CompositeObjectSinkAdapter.java:502)
>         at org.drools.core.reteoo.CompositeObjectSinkAdapter.propagateAssertObject(CompositeObjectSinkAdapter.java:377)
>         at org.drools.core.reteoo.ObjectTypeNode.assertObject(ObjectTypeNode.java:288)
>         at org.drools.core.reteoo.EntryPointNode.assertObject(EntryPointNode.java:260)
>         at org.drools.core.common.NamedEntryPoint.insert(NamedEntryPoint.java:360)
>         at org.drools.core.common.NamedEntryPoint.insert(NamedEntryPoint.java:279)
>         at org.drools.core.common.AbstractWorkingMemory.insert(AbstractWorkingMemory.java:1149)
>         at org.drools.core.common.AbstractWorkingMemory.insert(AbstractWorkingMemory.java:1093)
>         at org.drools.core.impl.StatefulKnowledgeSessionImpl.insert(StatefulKnowledgeSessionImpl.java:308)
> {noformat}
> I tested both with the java and mvel dialect with the same result.
> Does someone has already encountered this kind of error?
> If you need more details or clarifications please let me know.
> Thanks & regards,
> Loïc  
> {quote}



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