Event injection via constructor injection results in stacktrace.

/**
 * @author Mike Brock .
 */
@ApplicationScoped
public class HelloWorldService {
    private  Event<ResponseEvent> responseEvent;

    @Inject
    public HelloWorldService(Event<ResponseEvent> responseEvent) {
        this.responseEvent = responseEvent;
    }

    public void handleMessage(@Observes MessageEvent event) {
        System.out.println("Received Message: " + event.getMessage());
        responseEvent.fire(new ResponseEvent(event.getMessage()));
    }
}

com.google.common.collect.ComputationException: org.jboss.weld.exceptions.DefinitionException: org.jboss.errai.demos.cdi.helloworld.server.org$jboss$weld$bean-flat-ManagedBean-class_org$jboss$errai$demos$cdi$helloworld$server$HelloWorldService_$$_WeldClientProxy
	at com.google.common.collect.MapMaker$StrategyImpl.compute(MapMaker.java:602)
	at com.google.common.collect.MapMaker$StrategyImpl.compute(MapMaker.java:462)
	at com.google.common.collect.CustomConcurrentHashMap$ComputingImpl.get(CustomConcurrentHashMap.java:2045)
	at org.jboss.weld.bean.proxy.ClientProxyProvider.getClientProxy(ClientProxyProvider.java:112)
	at org.jboss.weld.manager.BeanManagerImpl.getReference(BeanManagerImpl.java:660)
	at org.jboss.weld.event.ObserverMethodImpl.sendEvent(ObserverMethodImpl.java:252)
	at org.jboss.weld.event.ObserverMethodImpl.notify(ObserverMethodImpl.java:222)
	at org.jboss.weld.manager.BeanManagerImpl.notifyObservers(BeanManagerImpl.java:614)
	at org.jboss.weld.manager.BeanManagerImpl.fireEvent(BeanManagerImpl.java:607)
	at org.jboss.weld.manager.BeanManagerImpl.fireEvent(BeanManagerImpl.java:601)
	at org.jboss.errai.cdi.server.EventDispatcher.callback(EventDispatcher.java:60)