Edson,
Many thanks for this: yes, we do use serialization so I will try and identify the exact case where this error happens.
Cheerio,
Nic
Nicholas Hemley
Senior Developer
Sidonis | Powering a New Generation of Service Assurance
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From: rules-users-bounces@lists.jboss.org [mailto:rules-users-bounces@lists.jboss.org] On Behalf Of Edson Tirelli
Sent: 20 October 2009 15:18
To: Rules Users List
Subject: Re: [rules-users] ClassCastException - org.drools.reteoo.BetaMemory
This is a bug. Would you please open a JIRA and attach as much information about the scenario as you can? A test case would be ideal, even if the problem does not happen every single run. Also, are you using serialization in your application?
Edson2009/10/20 Nicholas Hemley <nic.hemley@sidonis.com>
Hello,
I am getting the following intermittent error from drools 5.0.1 when removing a knowledge package from a knowledge base:
org.drools.reteoo.BetaMemory cannot be cast to org.drools.reteoo.RuleTerminalNode$TerminalNodeMemory
I iterate over knowledgeBase.getKnowledgePackages() and the error occurs, but only occasionally.
The full trace is as follows:
java.lang.ClassCastException: org.drools.reteoo.BetaMemory cannot be cast to org.drools.reteoo.RuleTerminalNode$TerminalNodeMemory
at org.drools.reteoo.RuleTerminalNode.doRemove(RuleTerminalNode.java:357)
at org.drools.common.BaseNode.remove(BaseNode.java:95)
at org.drools.reteoo.ReteooBuilder.removeRule(ReteooBuilder.java:237)
at org.drools.reteoo.ReteooRuleBase.removeRule(ReteooRuleBase.java:366)
at org.drools.common.AbstractRuleBase.removeRule(AbstractRuleBase.java:712)
at org.drools.common.AbstractRuleBase.removePackage(AbstractRuleBase.java:640)
at org.drools.impl.KnowledgeBaseImpl.removeKnowledgePackage(KnowledgeBaseImpl.java:166)
Any ideas why this would potentially happen?
Cheerio,
Nic
Nicholas Hemley
Senior Developer
Sidonis | Powering a New Generation of Service Assurance
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Edson Tirelli
JBoss Drools Core Development
JBoss by Red Hat @ www.jboss.com
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