Details
-
Bug
-
Resolution: Done
-
Major
-
None
-
7.38.0.Final
-
None
-
2020 Week 25-27 (from Jun 15), 2020 Week 43-45 (from Okt 19)
-
-
NEW
-
NEW
Description
After updating a declared type that is not referenced in the rules with updateToVersion(),
running fireAllRules() many times in a loop throws ClassCastException.
E.g., when the following DRL:
declare UnreferencedType x : int end declare ReferencedType str : String end rule "example rule" when ReferencedType( str == "A" ) then end
is updated to:
declare UnreferencedType x : int newField : String end declare ReferencedType str : String end rule "example rule" when ReferencedType( str == "A" ) then end
the following exception it thrown by fireAllRules():
java.lang.RuntimeException: Error evaluating constraint 'str == "A"' in [Rule "example rule" in org/example/rules.drl] at org.drools.core.rule.constraint.MvelConstraint.evaluate(MvelConstraint.java:277) at org.drools.core.rule.constraint.MvelConstraint.isAllowed(MvelConstraint.java:225) at org.drools.core.reteoo.AlphaNode.assertObject(AlphaNode.java:139) ... Caused by: java.lang.ClassCastException: class org.example.ReferencedType cannot be cast to class org.example.ReferencedType (org.example.ReferencedType is in unnamed module of loader org.drools.dynamic.DynamicProjectClassLoader$DefaultInternalTypesClassLoader @46292372; org.example.ReferencedType is in unnamed module of loader org.drools.dynamic.DynamicProjectClassLoader$DefaultInternalTypesClassLoader @23b8d9f3) at ConditionEvaluator7ed8b2c57cad4e74b856fdba30554aa1.evaluate(Unknown Source) at org.drools.core.rule.constraint.MvelConstraint.evaluate(MvelConstraint.java:275) ... 43 more
