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<div>Using Drools 5.0.1 FINAL</div>
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<div>Our logs contain the following exception:</div>
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<div><font face="Courier New, monospace" size="2">java.util.ConcurrentModificationException</font></div>
<div><font face="Courier New, monospace" size="2"> at java.util.HashMap$HashIterator.nextEntry(HashMap.java:2117)</font></div>
<div><font face="Courier New, monospace" size="2"> at java.util.HashMap$ValueIterator.next(HashMap.java:2147)</font></div>
<div><font face="Courier New, monospace" size="2"> at org.drools.reteoo.EntryPointNode.updateSink(EntryPointNode.java:285)</font></div>
<div><font face="Courier New, monospace" size="2"> at org.drools.reteoo.ObjectTypeNode.attach(ObjectTypeNode.java:279)</font></div>
<div><font face="Courier New, monospace" size="2"> at org.drools.reteoo.builder.PatternBuilder.attachObjectTypeNode(PatternBuilder.java:234)</font></div>
<div><font face="Courier New, monospace" size="2"> at org.drools.reteoo.ClassObjectTypeConf.<init>(ClassObjectTypeConf.java:93)</font></div>
<div><font face="Courier New, monospace" size="2"> at org.drools.common.ObjectTypeConfigurationRegistry.getObjectTypeConf(ObjectTypeConfigurationRegistry.java:58)</font></div>
<div><font face="Courier New, monospace" size="2"> at org.drools.common.AbstractWorkingMemory.insert(AbstractWorkingMemory.java:849)</font></div>
<div><font face="Courier New, monospace" size="2"> at org.drools.common.AbstractWorkingMemory.insert(AbstractWorkingMemory.java:788)</font></div>
<div><font face="Courier New, monospace" size="2"> at org.drools.impl.StatefulKnowledgeSessionImpl.insert(StatefulKnowledgeSessionImpl.java:216)</font></div>
<div><font face="Courier New, monospace" size="2"> at com.wellsfargo.ARGenT.Execution.SimXmlDataLoader.Load(SimXmlDataLoader.java:713)</font></div>
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<div>The code fragment around line 285 of EntryPointNode.java is the following:</div>
<div>Could the nested call to assertObject be causing the ConcurrentModificationException? </div>
<div>In other words, could the call to sink.assertObject cause an eventual recursive entry into updateSink or call another method that changes the registry and effectively invalidates the objectTypeConf iterator?</div>
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<div> <font face="Courier New, monospace"> public void updateSink(final ObjectSink sink,</font></div>
<div><font face="Courier New, monospace"> final PropagationContext context,</font></div>
<div><font face="Courier New, monospace"> final InternalWorkingMemory workingMemory) {</font></div>
<div><font face="Courier New, monospace"> // @todo</font></div>
<div><font face="Courier New, monospace"> // JBRULES-612: the cache MUST be invalidated when a new node type is added to the network, so iterate and reset all caches.</font></div>
<div><font face="Courier New, monospace"> final ObjectTypeNode node = (ObjectTypeNode) sink;</font></div>
<div><font face="Courier New, monospace"> </font></div>
<div><font face="Courier New, monospace"> final ObjectType newObjectType = node.getObjectType();</font></div>
<div><font face="Courier New, monospace"> </font></div>
<div style="padding-left: 36pt; "><font face="Courier New, monospace"> InternalWorkingMemoryEntryPoint wmEntryPoint = (InternalWorkingMemoryEntryPoint) workingMemory.getWorkingMemoryEntryPoint( this.entryPoint.getEntryPointId() );</font></div>
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<div><font face="Courier New, monospace">LINE 285: for ( ObjectTypeConf objectTypeConf : wmEntryPoint.getObjectTypeConfigurationRegistry().values() ) {</font></div>
<div><font face="Courier New, monospace"> if ( newObjectType.isAssignableFrom( objectTypeConf.getConcreteObjectTypeNode().getObjectType() ) ) {</font></div>
<div><font face="Courier New, monospace"> objectTypeConf.resetCache();</font></div>
<div><font face="Courier New, monospace"> ObjectTypeNode sourceNode = objectTypeConf.getConcreteObjectTypeNode();</font></div>
<div><font face="Courier New, monospace"> Iterator it = ((ObjectHashSet) workingMemory.getNodeMemory( sourceNode )).iterator();</font></div>
<div><font face="Courier New, monospace"> for ( ObjectEntry entry = (ObjectEntry) it.next(); entry != null; entry = (ObjectEntry) it.next() ) {</font></div>
<div><font face="Courier New, monospace"> sink.assertObject( (InternalFactHandle) entry.getValue(),</font></div>
<div><font face="Courier New, monospace"> context,</font></div>
<div><font face="Courier New, monospace"> workingMemory );</font></div>
<div><font face="Courier New, monospace"> }</font></div>
<div><font face="Courier New, monospace"> }</font></div>
<div><font face="Courier New, monospace"> }</font></div>
<div><font face="Courier New, monospace"> }</font></div>
<div style="margin-top: 5pt; margin-bottom: 5pt; "><font face="Cambria, serif" size="4" color="#4F81BD"><b>Tom Murphy<br>
</b><font face="Calibri, sans-serif" size="2" color="#000000"><i>Business Process Consultant<br>
Wells Fargo HCFG - CORE Deal Decisioning Platform<br>
800 S. Jordan Creek Parkway | West Des Moines, IA 50266<br>
MAC: </i></font><font face="Calibri, sans-serif" size="2" color="#FF0000"><i><b>X2301-01B<br>
</b></i></font><font face="Calibri, sans-serif" size="2" color="#000000"><b>Office: </b></font><font face="Calibri, sans-serif" size="2" color="#1F497D"><b>515 324 4853</b></font><font face="Calibri, sans-serif" size="2" color="#000000"><b> | Mobile: 941 320
8014<br>
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