在mvc3中使用开箱即用的handleError,问题

@Controller
@RequestMapping("/error")
public class ErrorController {

    @GetMapping("/404")
    @HandleError(exception = Exception.class)
    public String handleError404(HttpServletRequest request) {
        // 处理404错误
        return "error/404";
    }

    @GetMapping("/500")
    @HandleError(exception = Exception.class)
    public String handleError500(HttpServletRequest request) {
        // 处理500错误
        return "error/500";
    }
}

@Override
public String handleError(HttpServletRequest request, Throwable exception) {
    // 异常处理
    if (exception instanceof Exception) {
        return "error/404";
    }
    // 其他处理
    return "error/default";
}

spring.mvc.throw-exception-if-no-handler-found=true
spring.mvc.view.prefix=/WEB-INF/jsp/
spring.mvc.view.suffix=.jsp
error.page=/WEB-INF/jsp/error.jsp