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：@SpringBootApplicationpublic 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