How to get the class of VfNetCallback

public abstract class VfNetCallback<T> extends AbsCallback<VfNetResponse<T>> {

@Override
public VfNetResponse<T> parseNetworkResponse(Response response, int id) throws Exception {
    VfNetResponse<T> netResponse = JSON.parseObject(response.body().toString(), VfNetResponse<T>.class);
    return netResponse;
}

}

I can use Class< T > dataClass = (Class < T >) ((ParameterizedType) getClass().getGenericSuperclass()).getActualTypeArguments()[0];to get the class of T. But now I want to get the class of VfNetResponse< T > ?