Re: [rules-users] threw error java.lang.ClassCastException: org.drools.reteoo.FromNode$FromMemory cannot be cast to org.drools.reteoo.BetaMemory

I use KB methods directly For adding/updating a rule, I create a temporary instance of KnowledgeBuilder and add the rule to check if there are any errors. If there are no errors, I first remove (if rule needs to be updated) the previous rule by calling this ... kb.removeRule(ro.pkg, ro.name); Then I add the new rule ... kb.addKnowledgePackages(kbuilder.getKnowledgePackages()); Ejaz -- View this message in context: http://drools.46999.n3.nabble.com/threw-error-java-lang-ClassCastExceptio... Sent from the Drools: User forum mailing list archive at Nabble.com.