Access main application class in Quarkus extension - quarkus

Question

I have a main Quarkus application with an EventBus which publishes a custom MyEvent class, and a Quarkus extension designed for the main application with a listener for these events.
My problem is : the extension does not know the MyEvent class, so it cannot read the events as anything else than basic Object. I need to access the MyEvent attributes values in the extension. Is there a way to achieve that ?
I tried redefining the MyEvent class in the extension (MyExtEvent) for brutal casting, but it did obviously not work.
Simplified main app code :
MyEvent :
public class MyEvent {
private String id;
private String data;
public MyEvent() {}
public String getId() {
return id;
}
public void setId(String id) {
this.id = id;
}
public String getData() {
return data;
}
public void setData(String data) {
this.data = data;
}
}
Service :
import io.vertx.mutiny.core.eventbus.EventBus;
import javax.enterprise.context.ApplicationScoped;
import javax.inject.Inject;
#ApplicationScoped
public class MyServiceBean implements MyService {
#Inject
EventBus bus;
public void notify(MyEvent event) {
bus.publish("audit", event);
}
}
Simplified extension code :
MyExtEvent :
public class MyExtEvent {
private String id;
private String data;
public MyExtEvent() {}
public String getId() {
return id;
}
public void setId(String id) {
this.id = id;
}
public String getData() {
return data;
}
public void setData(String data) {
this.data = data;
}
}
Listener :
import io.quarkus.vertx.ConsumeEvent;
import javax.enterprise.context.RequestScoped;
import java.util.logging.Level;
import java.util.logging.Logger;
#RequestScoped
public class EventsListener {
private static final Logger LOGGER = Logger.getLogger(EventsListener.class.getName());
#ConsumeEvent(value = "audit")
public void consume(Object oevent) {
LOGGER.log(Level.FINE, "Event received : " + oevent.toString());
MyExtEvent event = (MyExtEvent) oevent;
// Do stuff with "id" and "data" fields
LOGGER.log(Level.FINE, "Event id : " + event.getId());
LOGGER.log(Level.FINE, "Event data : " + event.getData());
}
}
Casting exception received after the logging line :
java.lang.ClassCastException: class <main app path>.MyEvent cannot be cast to class <extension path>.MyExtEvent (<main app path>.MyEvent is in unnamed module of loader io.quarkus.bootstrap.classloading.QuarkusClassLoader #79d9214d; <extension path>.MyExtEvent is in unnamed module of loader io.quarkus.bootstrap.classloading.QuarkusClassLoader #3c22fc4c)