ClassCastException when using yearMonthDuration in decision table ----------------------------------------------------------------- Key: DROOLS-1455 URL: https://issues.jboss.org/browse/DROOLS-1455 Project: Drools Issue Type: Bug Components: dmn engine Reporter: Mélanie Gauthier Assignee: Edson Tirelli Attachments: yearMonthDuration.dmn Trying to run the attached example, a ClasCastException error is logged. dayTimeDuration works fine. A Period object is put in the context, created using BuiltInType feelType = (BuiltInType) BuiltInType.determineTypeFromName(type);