[rules-dev] Exception in runtime

[Mauricio Salatino]

Are you inserting facts from different threads in a statefull session?

On Tue, Jun 22, 2010 at 10:21 AM, <Tom.E.Murphy at wellsfargo.com> wrote:

>  Anybody have any ideas on this?
>
> We are seeing ConcurrentModificationException while inserting objects into
> working memory. This happens occasionally, either at service start-up, where
> the first transaction is being submitted and the rules are loading for the
> first time, or sometimes under heavy loads with lots of transactions being
> processed by the service:
> Drools 5.0.1-GA
> AS: Web Logic
> JVM: 1.5
>
> Fragment of stack trace:
> Caused by: java.util.ConcurrentModificationException
> java.util.HashMap$HashIterator.nextEntry(HashMap.java:2117)
> java.util.HashMap$ValueIterator.next(HashMap.java:2147)
> org.drools.reteoo.EntryPointNode.updateSink(EntryPointNode.java:285)
> org.drools.reteoo.ObjectTypeNode.attach(ObjectTypeNode.java:279)
>
> org.drools.reteoo.builder.PatternBuilder.attachObjectTypeNode(PatternBuilder.java:234)
> org.drools.reteoo.ClassObjectTypeConf.<init>(ClassObjectTypeConf.java:93)
>
> org.drools.common.ObjectTypeConfigurationRegistry.getObjectTypeConf(ObjectTypeConfigurationRegistry.java:58)
>
> org.drools.common.AbstractWorkingMemory.insert(AbstractWorkingMemory.java:849)
>
> org.drools.common.AbstractWorkingMemory.insert(AbstractWorkingMemory.java:788)
>
> org.drools.impl.StatefulKnowledgeSessionImpl.insert(StatefulKnowledgeSessionImpl.java:216)
> com.wellsfargo.ARGenT.Execution.DefaultLoader.Load(DefaultLoader.java:16)
>
>
> *Tom Murphy
>
> *Business Process Consultant
> Wells Fargo HCFG - CORE Deal Decisioning Platform
>
> 800 S. Jordan Creek Parkway | West Des Moines, IA 50266
> MAC: X2301-01B
> Office: 515 324 4853 | Mobile: 515 423 4334
>
> tom.e.murphy at wellsfargo.com
>
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