[rules-users] Guvnor - will not let you add elements to List in fact object

Hi We have a fact model object according to When using Guvnor we try (in vain) to add elements to its List of children according to http://drools.46999.n3.nabble.com/file/n4004819/fuckingGuvnor.png This result in errors running the test scenario. http://drools.46999.n3.nabble.com/file/n4004819/error.png Anybody recognize this? Is this not the way to insert elements in a fact's collection? Sincerely benfro -- View this message in context: http://drools.46999.n3.nabble.com/Guvnor-will-not-let-you-add-elements-to... Sent from the Drools: User forum mailing list archive at Nabble.com.