Re: [rules-users] Possible bug

You should insert Collections.synchronizedMap(new HashMap()); Instead of new HashMap() This error is a java error, not a drools one, it only means that two threads are, at the same time, accessing/modifying the same Map. The reason for this depends of your project -----Message d'origine----- De : rules-users-bounces(a)lists.jboss.org [mailto:rules-users-bounces@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/for... Regards Pavel _______________________________________________ rules-users mailing list rules-users(a)lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users This message contains information that may be privileged or confidential and is the property of the Capgemini Group. It is intended only for the person to whom it is addressed. If you are not the intended recipient, you are not authorized to read, print, retain, copy, disseminate, distribute, or use this message or any part thereof. If you receive this message in error, please notify the sender immediately and delete all copies of this message.