GWT: transmit an interface with an IsSerializable Object

Good morning everybody,

I'm trying to transmit the following calls with an GWT RPC call:

public class MVCController extends Composite implements IsSerializable {
    //..        
    private MVCClass listeners;

    public void addListener(MVCClass _listener){
        listeners = _listener;
    }

    //....
}

The MVCClass is the following interface:

import com.google.gwt.user.client.rpc.IsSerializable;

public interface MVCInterface extends IsSerializable{
    public abstract void labelTextChange(String _text);
}

Whenever I make the RPC call, the application crashes, sayin开发者_开发技巧g something about

Failed to create an instance of ... via deferred binding 

Can I send an Interface with an RFC call?

Regards Stefan

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You can not serialize a gwt widget that is why you get that exception. Your class MVCController extends from Composite whose base class is Widget..