JFinal CacheInterceptor 缓存如果是RenderJson就会报错？?报错

java.lang.IllegalArgumentException: CacheInterceptor can not support the render of the type : com.jfinal.render.JsonRender 

@Before(CacheInterceptor.class)
public void status() {
      
      setAttr("status", model);

      renderJson();
}

public RenderInfo(Render render) {
		if (render == null)
			throw new IllegalArgumentException("Render can not be null.");
		
		view = render.getView();
		if (render instanceof FreeMarkerRender)
			renderType = RenderType.FREE_MARKER_RENDER;
		else if (render instanceof JspRender)
			renderType = RenderType.JSP_RENDER;
		else if (render instanceof VelocityRender)
			renderType = RenderType.VELOCITY_RENDER;
		else if (render instanceof XmlRender)
			renderType = RenderType.XML_RENDER;
		else
			throw new IllegalArgumentException("CacheInterceptor can not support the render of the type : " + render.getClass().getName());
	}

请大神们指点哈！