Can anyone explain what this ConsequenceException means? Exception in thread "main" _org.drools.runtime.rule.ConsequenceException_: _java.lang.ClassCastException_: org.drools.reteoo.AlphaNode$AlphaMemory cannot be cast to org.drools.reteoo.BetaMemory at org.drools.runtime.rule.impl.DefaultConsequenceExceptionHandler.handleException(_DefaultConsequenceExceptionHandler.java:23_) at org.drools.common.DefaultAgenda.fireActivation(_DefaultAgenda.java:943_) at org.drools.common.DefaultAgenda.fireNextItem(_DefaultAgenda.java:885_) at org.drools.common.DefaultAgenda.fireAllRules(_DefaultAgenda.java:1086_) at org.drools.common.AbstractWorkingMemory.fireAllRules(_AbstractWorkingMemory.java:660_) at org.drools.common.AbstractWorkingMemory.fireAllRules(_AbstractWorkingMemory.java:627_) at org.drools.impl.StatefulKnowledgeSessionImpl.fireAllRules(_StatefulKnowledgeSessionImpl.java:183_) at org.jcvi.annotation.rulesengine.RulesEngine.fireAllRules(_RulesEngine.java:210_) at org.jcvi.annotation.Aruba.run(_Aruba.java:311_) at org.jcvi.annotation.RunTest.main(_RunTest.java:55_) Nelson

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