[rules-users] Possible bug

Pavel Tavoda pavel.tavoda at gmail.com
Mon Jun 28 11:42:52 EDT 2010


We are using community edition. I will ask customer to update to RedHat version.

Thank you

Pavel


2010/6/28 Edson Tirelli <tirelli at post.com>:
>     Pavel,
>     This is a bug. It was fixed last week:
> https://jira.jboss.org/browse/JBRULES-2556
>     When you say you are using the "official" 5.0 version, do you mean the
> Red Hat supported version or the community version? If you are a Red Hat
> subscriber, you can ask them to provide you with a patch.
>     Edson
>
>
> 2010/6/28 Pavel Tavoda <pavel.tavoda at gmail.com>
>>
>> Maybe yes, advice is generic but I looked at source code and from what
>> I see iteration is going through some internal cache which is maybe
>> concurrently modified not through items of my Hash.
>>   for ( ObjectTypeNode node : ruleBase.getRete().getObjectTypeNodes(
>> this.entryPoint ).values() ) {
>>
>> Anyway modifying fact will be wrong idea ;-).
>>
>> Pavel
>>
>> On Mon, Jun 28, 2010 at 3:36 PM, PAYET, Manuel
>> <manuel.payet at capgemini.com> wrote:
>> > My last message presumes that you inserted a Map fact, was I wrong?
>> >
>> > -----Message d'origine-----
>> > De : rules-users-bounces at lists.jboss.org
>> > [mailto:rules-users-bounces at lists.jboss.org] De la part de Pavel Tavoda
>> > Envoyé : lundi 28 juin 2010 15:29
>> > À : Rules Users List
>> > Objet : [rules-users] Possible bug
>> >
>> > Hello,
>> > we are using official 5.0 release and sometimes (very rarely) we get
>> > following error:
>> > java.util.ConcurrentModificationException
>> >        at java.util.HashMap$HashIterator.nextEntry(HashMap.java:793)
>> >        at java.util.HashMap$ValueIterator.next(HashMap.java:822)
>> >        at
>> > org.drools.reteoo.ClassObjectTypeConf.getMatchingObjectTypes(ClassObjectTypeConf.java:171)
>> >        at
>> > org.drools.reteoo.ClassObjectTypeConf.getObjectTypeNodes(ClassObjectTypeConf.java:163)
>> >        at
>> > org.drools.reteoo.EntryPointNode.assertObject(EntryPointNode.java:143)
>> >        at
>> > org.drools.common.AbstractWorkingMemory.insert(AbstractWorkingMemory.java:1046)
>> >        at
>> > org.drools.common.AbstractWorkingMemory.insert(AbstractWorkingMemory.java:1001)
>> >        at
>> > org.drools.common.AbstractWorkingMemory.insert(AbstractWorkingMemory.java:788)
>> >        at
>> > org.drools.process.command.InsertObjectCommand.execute(InsertObjectCommand.java:22)
>> >        at
>> > org.drools.process.command.InsertObjectCommand.execute(InsertObjectCommand.java:7)
>> >        at
>> > org.drools.runtime.impl.BatchExecutionImpl.execute(BatchExecutionImpl.java:23)
>> >        at
>> > org.drools.runtime.impl.BatchExecutionImpl.execute(BatchExecutionImpl.java:9)
>> >        at
>> > org.drools.impl.StatelessKnowledgeSessionImpl.execute(StatelessKnowledgeSessionImpl.java:225)
>> >        at
>> > org.fornax.cartridges.sculptor.framework.drools.DroolsAdvice.applyCompanyPolicy(DroolsAdvice.java:150)
>> >
>> > We are using AspectJ advice for starting rule evaluation for every
>> > service call. Hope we are doing everything right in code. Full source code
>> > of advice can be found at:
>> >
>> > http://fisheye3.atlassian.com/browse/fornax/trunk/cartridges/sculptor/fornax-cartridges-sculptor-framework/src/main/java/org/fornax/cartridges/sculptor/framework/drools/DroolsAdvice.java?r=6407
>> >
>> > Regards
>> >
>> > Pavel
>> > _______________________________________________
>> > rules-users mailing list
>> > rules-users at lists.jboss.org
>> > https://lists.jboss.org/mailman/listinfo/rules-users
>> >
>> >
>> >
>> >
>> >
>> >
>> > This message contains information that may be privileged or confidential
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>> >
>> >
>> > _______________________________________________
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>> > rules-users at lists.jboss.org
>> > https://lists.jboss.org/mailman/listinfo/rules-users
>> >
>>
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>
>
>
> --
>  Edson Tirelli
>  JBoss Drools Core Development
>  JBoss by Red Hat @ www.jboss.com
>
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