Arrays 类型中的 asList(T...) 方法不适用于参数 (Role, Role)

Question

如果我正确实施了 OAuth 2.0 授权，我将尝试使用 Postman 测试它。

我正在通过邮递员发送这个期待令牌作为回报

http://localhost:8080/oauth/token/grant_type=password&username=user&password=user

但是我在这部分代码中有错误：

@SpringBootApplication

public class KamehouseApplication {

    public static void main(String[] args) {

        SpringApplication.run(KamehouseApplication.class, args);

    }

    @Autowired

    public void configure(AuthenticationManagerBuilder auth, UserRepository repo, User user) throws Exception {

        if (repo.count() == 0)

            user = (new User("user", // username

                    "user", // password

                    Arrays.asList(new Role("USER"), new Role("ACTUATOR"))));// roles

        repo.save(user);

        auth.userDetailsService(s -> new CustomUserDetails(repo.findByUsername(s)));

    }

}

红色下划线的部分是

Arrays.asList(new Role("USER"), new Role("ACTUATOR"))));

说

The method asList(T...) in the type Arrays is not applicable for the arguments (Role, Role)

这是我的用户类

@Entity

@Table(name = "user")

public class User {

    @Id

    @GeneratedValue

    public int id;

    public String firstname;

    public String lastname;

    public String username;

    public String password;

    @OneToMany(fetch = FetchType.EAGER, cascade = CascadeType.ALL)

    private List<Role> roles;

    public User() {

    }

    //Getters/Setters