EasyMock a basic listener

How do i use EasyMock to mock a basic listener. I have tried using a void technique described here and it did not work. My goal is to test the addModelListener() method. I want to add a listener and just make sure the listener gets called when i setData().

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//The Listener
public interface AListener {
    public void dataChanged();
}

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//The class being tested.
public class TheModel {
    private List<AListener> modelListeners;

    public void addModelListener(AListener aListener) {
        if (this.modelListeners == null) {
            this.modelListeners = new ArrayList<AListener>();
        }
        this.modelListeners.add(aListener);
    }

    public void setData(Data data) {
        this.data = data;
        this.notifyDataChanged();
    }

    private void notifyDataChanged() {
        if (this.modelListeners != null && !this.modelListeners.isEmpty()) {
            for (AListener listener : this.modelListeners) {
                if (listener != null) {
                    listener.dataChanged();
                }
            }
        }
    }
}

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//The test. My initial attempts with the void stuff.
public void testAddModelListener() {

    AListener listener = EasyMock.createNiceMock(AListener.class);
    listener.dataChanged();
    EasyMock.expectLastCall().times(1);
    EasyMock.replay(listener);

    TheModel model = new TheModel(null);
    model.addModelListener(listener);
    model.setData(null);
    EasyMock.verify(listener);
}

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I would expect the above test to verify how many times the listener.dataChanged() method was called. It fails saying it was never called.