Hi, I am setting an ArrayList as a Global on my drools session by saying ... StatefulSession drlSession = getRuleManager().getSession(); drlSession.setGlobal("myMailingList", myMailingList); then in my Drl file, I send the same arrayList as a parameter to the setter of another object by saying... package com.test.rules; import java.util.ArrayList; global java.util.ArrayList myMailingList; rule "Test" salience 100 no-loop true when $o:MyObject(some condition) $d:Destination() then $d.setFieldMember(myMailingList) end So, based on some condition/field value in MyObject I want to set the Destination with the arraylist - myMailingList. Is the way I specify/refer the ArrayList in the then part fine. Because I am always getting "unable to compile test.drl file - runtime exception". Could some one please help me with this. -thnx _______________________________________________ rules-users mailing list rules-users(a)lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users