Hi Mike, thanks for the quick response. Regards Kai. -- View this message in context: http://drools.46999.n3.nabble.com/Guvnor-5-3-to-5-4-0-CR1-DSLVariableValue-ClassCastException-tp3929542p3932741.html Sent from the Drools: User forum mailing list archive at Nabble.com.