The drools user guide contains this example: when    $assessment : Assessment()    $p : Person()    $addresses : List() from $p.addresses    exists (Address( state == "NC") from $addresses) then    modify ($assessment) {} #Modify assessment in a modify block end I derive from this that $addresses is a list. But when I add a System.out.println($addresses.getClass().getName()) I get "Address" as result Also, when I want to use $addresses as a list in the consequence (eg. .size() ), I get java.lang.IllegalArgumentException: object is not an instance of declaring class. Is this expected behaviour? Evert -- View this message in context: http://drools-java-rules-engine.46999.n3.nabble.com/List-from-collection-... Sent from the Drools - User mailing list archive at Nabble.com. _______________________________________________ rules-users mailing list rules-users(a)lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users