extending spring mvc controller without using adapter pattern

I have one controller which has 4 request mapping and I cannot do changes in this controller. Is it possible to have a class(controller/component) which overrides one of the request mapping methods to have my custom implementation for this request mapping and using the other 3 request mapping methods as is. Is it possible?

Below is a sample code:

@Controller
public class Base {

    @RequestMapping("/add")
    public String add() throws Exception {
        return "add";
    }

    @RequestMapping("/update")
    public String update() throws Exception {
        return "update";
    }

    @RequestMapping("/remove")
    public String remove() throws Exception {
        return "remove";
    }

    @RequestMapping("/show")
    public String show() throws Exception {
        return "show";
    }
}


public class ExtendedBase extends Base {
    public String add() throws Exception {
        return "newAdd";
    }
}