有没有办法向下转换GWT AutoBean？

import com.google.gwt.thirdparty.json.JSONArray;
import com.google.gwt.thirdparty.json.JSONObject;
import com.google.web.bindery.autobean.shared.AutoBean;
import com.google.web.bindery.autobean.shared.AutoBeanCodex;
import com.google.web.bindery.autobean.shared.AutoBeanFactory;

public class GWTAutoBeanExample {

    public static void main(String[] args) {
        // 创建 AutoBeanFactory
        AutoBeanFactory factory = AutoBeanFactory.create(MyAutoBean.class);

        // 创建 AutoBean
        AutoBean<MyAutoBean> bean = factory.create(MyAutoBean.class);

        // 设置属性值
        bean.as().setProperty1("value1");
        bean.as().setProperty2(123);

        // 序列化为 JSON 字符串
        String jsonString = AutoBeanCodex.encode(bean).getPayload();

        // 反序列化为 Java 对象
        AutoBean<MyAutoBean> decodedBean = AutoBeanCodex.decode(factory, MyAutoBean.class, jsonString);

        // 获取属性值
        String property1 = decodedBean.as().getProperty1();
        int property2 = decodedBean.as().getProperty2();
    }
}

import com.google.web.bindery.autobean.shared.AutoBean;
import com.google.web.bindery.autobean.shared.AutoBeanCodex;
import com.google.web.bindery.autobean.shared.AutoBeanFactory;
import com.google.web.bindery.autobean.shared.AutoBeanUtils;

public class GWTAutoBeanExample {

    public static void main(String[] args) {
        // 创建 AutoBeanFactory
        AutoBeanFactory factory = AutoBeanFactory.create(MyAutoBean.class);

        // 创建 AutoBean
        AutoBean<MyAutoBean> bean = factory.create(MyAutoBean.class);

        // 设置属性值
        bean.as().setProperty1("value1");
        bean.as().setProperty2(123);

        // 转换为其他格式
        MyAutoBean myAutoBean = AutoBeanUtils.getAutoBean(bean).as();

        // 获取属性值
        String property1 = myAutoBean.getProperty1();
        int property2 = myAutoBean.getProperty2();
    }
}