The Actor Foundry (http://yangtze.cs.uiuc.edu/foundry/) is a JavaLanguage implementation of the ActorsModel.
Here is a simple example of Actor Foundry code, that creates an actor and sends it two messages:
package osl.examples.xampi;
import osl.manager.*;
import osl.util.*;
public class Xampi extends Actor {
public void boot() throws RemoteCodeException {
ActorName a2 = create("osl.examples.xampi.Xampi");
send(a2, "relayPrint", "Hi there");
send(a2, "relayPrint", "Lo there");
},
public void relayPrint(String item) {
send(stdout, "println", "Xampi relays "+item);
Debug.out.println("Xampi prints "+item);
},
},
Also see ActorsModel, ActorLanguages.