[jboss-jira] [JBoss JIRA] (JBRULES-3523) java.lang.ClassCastException: org.drools.facttemplates.FactTemplateObjectType cannot be cast to org.drools.base.ClassObjectType

java.lang.ClassCastException: org.drools.facttemplates.FactTemplateObjectType cannot be cast to org.drools.base.ClassObjectType ------------------------------------------------------------------------------------------------------------------------------- Key: JBRULES-3523 URL: https://issues.jboss.org/browse/JBRULES-3523 Project: Drools Issue Type: Bug Security Level: Public(Everyone can see) Reporter: Viswa Repalle Assignee: Mario Fusco Fix For: 5.4.1.Final, 5.5.0.Beta1 I have analyzed the issue and found that the issue is happening at the initDeclaredMask method of BetaNode.java of drools-core-5.4.0.final.jar at the following lines of code: ObjectType objectType = pattern.getObjectType(); if ( !(objectType instanceof ClassObjectType) ) { // InitialFact has no type declaration and cannot be property specific // Only ClassObjectType can use property specific rightDeclaredMask = Long.MAX_VALUE; } Class objectClass = ((ClassObjectType) objectType).getClassType(); The above code will throw ClassCastException as irrespective of the objectType is instance of ClassObjectType or not, trying to type cast to ClassObjectType.