Problema de serialização de Lazy Loading do Hibernate no VRaptor4

HibernateProxyJson.java

import java.lang.reflect.Type;

import javax.enterprise.context.Dependent;
import javax.inject.Inject;

import org.hibernate.proxy.HibernateProxy;

import com.google.gson.JsonElement;
import com.google.gson.JsonSerializationContext;
import com.google.gson.JsonSerializer;

import br.com.caelum.vraptor.serialization.gson.GsonSerializerBuilder;

@Dependent
public class HibernateProxyJson implements JsonSerializer<HibernateProxy> {

	@Override
	public JsonElement serialize(HibernateProxy src, Type typeOfSrc, JsonSerializationContext context) {
		try {
            Object deProxied = src.getHibernateLazyInitializer().getImplementation();
            return context.serialize(deProxied);
        } catch (Exception e) {
            throw new RuntimeException(e);
        }
	}

}