JESS: Problem with slot type any

[Renzo Bertuzzi L.]

hi, i'm trying to run this example for jade, protege and jess, but i get the folowing error     ; Oliver Hoffmann 10 May 2001 ; in collaboration with Fabio Bellifemine and Ernest Friedmann-Hill ; shows how a JADE system and a JADE/JESS/PROTEGE agent can be started from within the protege JessTab   ;Cargar el JessTab, permite interaccion con objetos Protege (load-package JessTab.JessTabFunctions)   (call examples.JadeJessProtege.JessHashtable setRete "JessProtege" (engine)) ; save the pointer to this JESS engine (call jade.Boot main (create$ "-gui" "JessProtege:examples.JadeJessProtege.JadeJessAgent(JessProtege)")) ; start the JADE system and an agent (defclass Message ; a JADE ACL message mapped to a protege instance   (is-a :STANDARD-CLASS) ; class Message will inherit th standard slots   (slot Performative) ; message speech act as a String   (slot Sender (type any)) ; message sender, not a String, but a JADE AID   (slot Content) ; message content as a String ) (mapclass Message) ; make JESS facts for protege Message instances (defrule message ; make a protege instance for every message the agent tells JESS about   ?Message <- (Message ?message) ; the agent made this JESS fact for a message it received   =>   (make-instance of  Message ; a new protege instance of class Message     (Performative (call jade.lang.acl.ACLMessage getPerformative (?message getPerformative))) ; take the String describing the speech act     (Sender (?message getSender)) ; map the sender     (Content (?message getContent)) ; map the content   )   (retract ?Message) ; retract the fact since it was only used to notify about the message and now we have the protege instance ) (defrule proposal ; example for what the agent could do with a message   (Agent ?agent) ; the agent started with the JADE system   ?instance <- (object ) ; any protege instance would match here   (test (eq (class ?instance) Message)) ; if the instance is a Message   (test (eq (slot-get ?instance Performative) "CFP")) ; meaning the message is a call for proposals   =>   (bind ?message (new jade.lang.acl.ACLMessage (get-member jade.lang.acl.ACLMessage PROPOSE))) ; make a new java PROPOSE ACLMessage object   (?message setSender (?agent getAID)) ; take "my" agent as the sender   (?message addReceiver (slot-get ?instance Sender)) ; take the original sender as receiver   (?message setContent (slot-get ?instance Content)) ; just copy the original content   (?agent send ?message) ; send a proposal back to the original sender which is a copy of the original content ) ; the protege Message instance is still here so you can check it on the instances tab, but you might want to remove it with unmake-instance       ------------ the error --------------   Jess reported an error in routine make-instance         while executing (make-instance of Message (Performative (call jade.lang. acl.ACLMessage getPerformative (call ?message getPerformative))) (Sender (call ? message getSender)) (Content (call ?message getContent)))         while executing defrule MAIN::message.   Message: Incompatible type for slot: Sender type String Cannot set value: <Ext ernal-Address:jade.core.AID>.         at JessTab.ProtegeMakeInstance.call(Unknown Source)         at jess.FunctionHolder.call(FunctionHolder.java:30)         at jess.Funcall.execute(Funcall.java:266)         at jess.Defrule.fire(Defrule.java:215)         at jess.Activation.fire(Activation.java:84)         at jess.Agenda.run(Agenda.java:229)         at jess.Agenda.run(Agenda.java:209)         at jess.Rete.run(Rete.java:1132)         at examples.JadeJessProtege.JadeJessBehaviour.run(JadeJessBehaviour.java :74)         at examples.JadeJessProtege.JadeJessBehaviour.action(JadeJessBehaviour.j ava:87)         at jade.core.behaviours.Behaviour.actionWrapper(Unknown Source)         at jade.core.Agent.mainLoop(Unknown Source)         at jade.core.Agent.run(Unknown Source)         at java.lang.Thread.run(Unknown Source)     i have tried to use     (slot Sender (type external-address:jade.core.AID)) ; message sender, not a String, but a JADE AID but it doesnt work (jade is in my classpath)   thanks