[jboss-jira] [JBoss JIRA] (JBRULES-3488) infinite loop in rule with accumulate, even if the then part does nothing

[Jean-Marc Vanel (JIRA)]

    [ https://issues.jboss.org/browse/JBRULES-3488?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12690423#comment-12690423 ] 

Jean-Marc Vanel commented on JBRULES-3488:
------------------------------------------

This loop goes wild at line 460 
in class FromNode in :

public void updateSink( final LeftTupleSink sink,
final PropagationContext context,
final InternalWorkingMemory workingMemory) {

for ( RightTuple rightTuple = rightTuples; rightTuple != null; rightTuple = (RightTuple) rightIter.next( rightTuples ) ) {

And the stack is :

Daemon Thread [SwingWorker-pool-3-thread-1] (Suspended (breakpoint at line 477 in FromNode))
FromNode.updateSink(LeftTupleSink, PropagationContext, InternalWorkingMemory) line: 477
RightInputAdapterNode.attach(InternalWorkingMemory[]) line: 240
BuildUtils.attachNode(BuildContext, BaseNode) line: 149
AccumulateBuilder.build(BuildContext, BuildUtils, RuleConditionElement) line: 74
PatternBuilder.attachPattern(BuildContext, BuildUtils, Pattern) line: 126
PatternBuilder.build(BuildContext, BuildUtils, RuleConditionElement) line: 79
GroupElementBuilder$AndBuilder.build(BuildContext, BuildUtils, RuleConditionElement) line: 116
GroupElementBuilder.build(BuildContext, BuildUtils, RuleConditionElement) line: 72
ReteooRuleBuilder.addSubRule(BuildContext, GroupElement, int, Rule) line: 154
ReteooRuleBuilder.addRule(Rule, InternalRuleBase, IdGenerator) line: 125
ReteooBuilder.addRule(Rule) line: 116
ReteooRuleBase.addRule(Rule) line: 445
ReteooRuleBase(AbstractRuleBase).addRule(Package, Rule) line: 955
ReteooRuleBase(AbstractRuleBase).addPackages(Collection<Package>) line: 626
ReteooRuleBase.addPackages(Collection<Package>) line: 472
ReteooRuleBase.addPackage(Package) line: 479
N3SourcetoDrools.droolsCompile(String, String) line: 425

                
> infinite loop in rule with accumulate, even if the then part does nothing
> -------------------------------------------------------------------------
>
>                 Key: JBRULES-3488
>                 URL: https://issues.jboss.org/browse/JBRULES-3488
>             Project: Drools
>          Issue Type: Bug
>      Security Level: Public(Everyone can see) 
>          Components: drools-core  (expert)
>    Affects Versions: 5.4.0.CR1
>         Environment: Debian 6
> % uname -a
> Linux oem-laptop 2.6.32-5-amd64 #1 SMP Thu Mar 22 17:26:33 UTC 2012 x86_64 GNU/Linux
>  % java -version
> java version "1.7.0_03"
> Java(TM) SE Runtime Environment (build 1.7.0_03-b04)
> Java HotSpot(TM) 64-Bit Server VM (build 22.1-b02, mixed mode)
>            Reporter: Jean-Marc Vanel
>            Assignee: Edson Tirelli
>
> There is an infinite loop .
> It happens in the addPackage step.
> It happens whatever is in the then part

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