Java 为什么methodName（类<；？扩展interfaceName>；名称）有效，而methodName（类<；interfaceName>；名称）无效；T

我不明白为什么：

HATEOASController接口：

public interface HATEOASController {
    ResponseEntity<?> findAll(Pageable pageable);
    ResponseEntity<?> findById(Long id);
}

     public class EstadoController implements HATEOASController {
           //other methods

       @GetMapping(value={"/", ""})
       public ResponseEntity<?> findAll(Pageable pageable){
      
            Page<Estado> estados = estadoService.findAll(pageable);
            estados.forEach(i->{               //**HERE**
                                              //   \/
                HATEOASBuilder.linksBuilder(i, EstadoController.class);
                HATEOASBuilder.linksBuilderWithMap(i.getCidades());
            });
        return new ResponseEntity(estados, HttpStatus.OK);
    }

public static void linksBuilder (HATEOASBuilder estado, Class<? extends HATEOASController> ControllerClass){
//methods}

public static void linksBuilder (HATEOASBuilder estado, Class<HATEOASController> ControllerClass){
    //methods}

公共接口HATEOASController{
响应findAll（可分页）；
响应findById（长id）；
}

EstadoController:

public interface HATEOASController {
    ResponseEntity<?> findAll(Pageable pageable);
    ResponseEntity<?> findById(Long id);
}

     public class EstadoController implements HATEOASController {
           //other methods

       @GetMapping(value={"/", ""})
       public ResponseEntity<?> findAll(Pageable pageable){
      
            Page<Estado> estados = estadoService.findAll(pageable);
            estados.forEach(i->{               //**HERE**
                                              //   \/
                HATEOASBuilder.linksBuilder(i, EstadoController.class);
                HATEOASBuilder.linksBuilderWithMap(i.getCidades());
            });
        return new ResponseEntity(estados, HttpStatus.OK);
    }

public static void linksBuilder (HATEOASBuilder estado, Class<? extends HATEOASController> ControllerClass){
//methods}

public static void linksBuilder (HATEOASBuilder estado, Class<HATEOASController> ControllerClass){
    //methods}

public类EstadoController实现hateoascoontroller{
//其他方法
@GetMapping（值={”/“，”“}）
公共响应findAll（可分页）{
Page estados=estadoService.findAll（可分页）；
estados.forEach（i->{/**此处**
//   \/
HATEOASBuilder.linksBuilder（i，EstadoController.class）；
hateoasbuilderwithmap（i.getCidades（））；
});
返回新的响应状态（estados，HttpStatus.OK）；
}

HATEOASBuilder:

public interface HATEOASController {
    ResponseEntity<?> findAll(Pageable pageable);
    ResponseEntity<?> findById(Long id);
}

     public class EstadoController implements HATEOASController {
           //other methods

       @GetMapping(value={"/", ""})
       public ResponseEntity<?> findAll(Pageable pageable){
      
            Page<Estado> estados = estadoService.findAll(pageable);
            estados.forEach(i->{               //**HERE**
                                              //   \/
                HATEOASBuilder.linksBuilder(i, EstadoController.class);
                HATEOASBuilder.linksBuilderWithMap(i.getCidades());
            });
        return new ResponseEntity(estados, HttpStatus.OK);
    }

public static void linksBuilder (HATEOASBuilder estado, Class<? extends HATEOASController> ControllerClass){
//methods}

public static void linksBuilder (HATEOASBuilder estado, Class<HATEOASController> ControllerClass){
    //methods}

---

publicstaticvoidlinksbuilder（HATEOASBuilder estado，因为
Class
不是
Class
的子类型。我不明白，确切地说，EstadoController在使用Class时不是HATEOASController的子类型