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<div>Anybody have any ideas on this?</div>
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<div>We are seeing <font face="Times New Roman, serif" size="3">ConcurrentModificationException</font> 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:</div>
<div>Drools 5.0.1-GA</div>
<div>AS: Web Logic</div>
<div>JVM: 1.5</div>
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<div style="margin-top: 5pt; margin-bottom: 5pt; "><font face="Times New Roman, serif" size="3">Fragment of stack trace:</font></div>
<div style="margin-top: 5pt; margin-bottom: 5pt; "><font face="Times New Roman, serif" size="3">Caused by: java.util.ConcurrentModificationException</font></div>
<div style="margin-top: 5pt; margin-bottom: 5pt; "><font face="Times New Roman, serif" size="3">java.util.HashMap$HashIterator.nextEntry(HashMap.java:2117)</font></div>
<div style="margin-top: 5pt; margin-bottom: 5pt; "><font face="Times New Roman, serif" size="3">java.util.HashMap$ValueIterator.next(HashMap.java:2147)</font></div>
<div style="margin-top: 5pt; margin-bottom: 5pt; "><font face="Times New Roman, serif" size="3">org.drools.reteoo.EntryPointNode.updateSink(EntryPointNode.java:285)</font></div>
<div style="margin-top: 5pt; margin-bottom: 5pt; "><font face="Times New Roman, serif" size="3">org.drools.reteoo.ObjectTypeNode.attach(ObjectTypeNode.java:279)</font></div>
<div style="margin-top: 5pt; margin-bottom: 5pt; "><font face="Times New Roman, serif" size="3">org.drools.reteoo.builder.PatternBuilder.attachObjectTypeNode(PatternBuilder.java:234)</font></div>
<div style="margin-top: 5pt; margin-bottom: 5pt; "><font face="Times New Roman, serif" size="3">org.drools.reteoo.ClassObjectTypeConf.<init>(ClassObjectTypeConf.java:93)</font></div>
<div style="margin-top: 5pt; margin-bottom: 5pt; "><font face="Times New Roman, serif" size="3">org.drools.common.ObjectTypeConfigurationRegistry.getObjectTypeConf(ObjectTypeConfigurationRegistry.java:58)</font></div>
<div style="margin-top: 5pt; margin-bottom: 5pt; "><font face="Times New Roman, serif" size="3">org.drools.common.AbstractWorkingMemory.insert(AbstractWorkingMemory.java:849)</font></div>
<div style="margin-top: 5pt; margin-bottom: 5pt; "><font face="Times New Roman, serif" size="3">org.drools.common.AbstractWorkingMemory.insert(AbstractWorkingMemory.java:788)</font></div>
<div style="margin-top: 5pt; margin-bottom: 5pt; "><font face="Times New Roman, serif" size="3">org.drools.impl.StatefulKnowledgeSessionImpl.insert(StatefulKnowledgeSessionImpl.java:216)</font></div>
<div><font face="Times New Roman, serif" size="3">com.wellsfargo.ARGenT.Execution.DefaultLoader.Load(DefaultLoader.java:16)</font></div>
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<div style="margin-top: 5pt; margin-bottom: 5pt; "><font face="Georgia, serif" size="2"><b>Tom Murphy<br>
<br>
</b><font face="Verdana, sans-serif" size="1">Business Process Consultant<br>
Wells Fargo HCFG - CORE Deal Decisioning Platform<br>
<br>
</font><font face="Verdana, sans-serif" size="1" color="#7F7F7F">800 S. Jordan Creek Parkway | West Des Moines, IA 50266<br>
MAC: X2301-01B<br>
</font><font face="Verdana, sans-serif" size="1" color="#7F7F7F">Office: 515 324 4853 | Mobile: 515 423 4334<br>
<br>
</font><font face="Verdana, sans-serif" size="1">tom.e.murphy@wellsfargo.com<br>
<br>
</font><font face="Verdana, sans-serif" size="1" color="#44464A">This transmission may contain information that is confidential and/or proprietary. If you are not the individual or entity to which it is addressed, note that any review, disclosure, copying,
retransmission, or other use is strictly prohibited. If you received this transmission in error, please notify the sender immediately and delete the material from your system.</font></font></div>
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