[jboss-jira] [JBoss JIRA] (DROOLS-998) NullPointerException at org.drools.core.common.LeftTupleSetsImpl.removeInsert(LeftTupleSetsImpl.java:141)

[RH Bugzilla Integration (JIRA)]

    [ https://issues.jboss.org/browse/DROOLS-998?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13154207#comment-13154207 ] 

RH Bugzilla Integration commented on DROOLS-998:
------------------------------------------------

Mario Fusco <mfusco at redhat.com> changed the Status of [bug 1302141|https://bugzilla.redhat.com/show_bug.cgi?id=1302141] from ASSIGNED to MODIFIED

> NullPointerException at org.drools.core.common.LeftTupleSetsImpl.removeInsert(LeftTupleSetsImpl.java:141)
> ---------------------------------------------------------------------------------------------------------
>
>                 Key: DROOLS-998
>                 URL: https://issues.jboss.org/browse/DROOLS-998
>             Project: Drools
>          Issue Type: Bug
>          Components: core engine
>    Affects Versions: 6.3.0.Final
>         Environment: OpenJDK Runtime Environment (IcedTea 2.6.3) (7u91-2.6.3-0ubuntu0.14.04.1)
>            Reporter: Christian Spurk
>            Assignee: Mario Fusco
>             Fix For: 6.4.0.CR1
>
>
> The following {{NullPointerException}} occurs for the following rule:
> {code}
> Exception in thread "main" java.lang.NullPointerException
> 	at org.drools.core.common.LeftTupleSetsImpl.removeInsert(LeftTupleSetsImpl.java:141)
> 	at org.drools.core.common.LeftTupleSetsImpl.addDelete(LeftTupleSetsImpl.java:80)
> 	at org.drools.core.phreak.PhreakAccumulateNode.doLeftDeletes(PhreakAccumulateNode.java:603)
> 	at org.drools.core.phreak.PhreakAccumulateNode.doNode(PhreakAccumulateNode.java:65)
> 	at org.drools.core.phreak.RuleNetworkEvaluator.switchOnDoBetaNode(RuleNetworkEvaluator.java:565)
> 	at org.drools.core.phreak.RuleNetworkEvaluator.evalBetaNode(RuleNetworkEvaluator.java:536)
> 	at org.drools.core.phreak.RuleNetworkEvaluator.evalNode(RuleNetworkEvaluator.java:372)
> 	at org.drools.core.phreak.RuleNetworkEvaluator.innerEval(RuleNetworkEvaluator.java:332)
> 	at org.drools.core.phreak.RuleNetworkEvaluator.outerEval(RuleNetworkEvaluator.java:166)
> 	at org.drools.core.phreak.RuleNetworkEvaluator.evaluateNetwork(RuleNetworkEvaluator.java:123)
> 	at org.drools.core.phreak.RuleExecutor.reEvaluateNetwork(RuleExecutor.java:194)
> 	at org.drools.core.phreak.RuleExecutor.fire(RuleExecutor.java:142)
> 	at org.drools.core.phreak.RuleExecutor.evaluateNetworkAndFire(RuleExecutor.java:74)
> 	at org.drools.core.common.DefaultAgenda.fireNextItem(DefaultAgenda.java:978)
> 	at org.drools.core.common.DefaultAgenda.fireAllRules(DefaultAgenda.java:1292)
> 	at org.drools.core.impl.StatefulKnowledgeSessionImpl.internalFireAllRules(StatefulKnowledgeSessionImpl.java:1294)
> 	at org.drools.core.impl.StatefulKnowledgeSessionImpl.fireAllRules(StatefulKnowledgeSessionImpl.java:1281)
> 	at org.drools.core.impl.StatefulKnowledgeSessionImpl.fireAllRules(StatefulKnowledgeSessionImpl.java:1260)
> 	at org.drools.core.command.runtime.rule.FireAllRulesCommand.execute(FireAllRulesCommand.java:109)
> 	at org.drools.core.command.runtime.rule.FireAllRulesCommand.execute(FireAllRulesCommand.java:34)
> 	at org.drools.core.impl.StatelessKnowledgeSessionImpl.execute(StatelessKnowledgeSessionImpl.java:292)
> 	at Test.main(Test.java:13)
> {code}
> {code}
> rule "test"
> when
>     not( String() )
>     accumulate(
>         Long();
>         sum(1)
>     )
>     ( Boolean() or not( Float() ) )
> then
>     insert(new String());
> end
> {code}
> (Please ignore the nonsensical rule; I simply couldn't reproduce this issue in any better way without providing you my larger system where the (more complex) rule makes more sense.)
> I'm using a default KIE configuration to load the rule:
> {{kmodule.xml}}:
> {code}
> <?xml version="1.0" encoding="UTF-8"?>
> <kmodule xmlns="http://jboss.org/kie/6.0.0/kmodule" />
> {code}
> {{Test.java}}:
> {code}
> import org.kie.api.KieBase;
> import org.kie.api.KieServices;
> import org.kie.api.runtime.StatelessKieSession;
> import org.kie.internal.command.CommandFactory;
> public class Test {
>     public static void main(String[] args) {
>         KieBase kieBase = KieServices.Factory.get().getKieClasspathContainer()
>                 .getKieBase();
>         StatelessKieSession session = kieBase.newStatelessKieSession();
>         session.execute(CommandFactory.newFireAllRules());
>     }
> }
> {code}
> This issue might be related with DROOLS-987.



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