我与User和Role JPA实体之间存在Many-to-Many关系。当我尝试保存实体时，User和Role实体都将持久化在表中，但连接表不会随记录一起插入。
用户实体

@Entity
@Table(name="users")
@Data
@NoArgsConstructor
@EqualsAndHashCode(exclude = "roles")
@ToString(exclude = "roles")
public class User {
    
    @Id
    @GeneratedValue(strategy = GenerationType.AUTO)
    private long id;
    
    private String name;
    private String password;
    private double salary;
    
    public User(String name, String password, double salary) {
        super();
        this.name = name;
        this.password = password;
        this.salary = salary;
    }
    
    
    @ManyToMany(
            mappedBy = "users")
    private Set<Role> roles = new HashSet<>();
    
    
    public void addRole(Role role) {
        this.roles.add(role);
        role.getUsers().add(this);
    }
}

角色实体

@Entity
@Table(name = "roles")
@Data
@NoArgsConstructor
@EqualsAndHashCode(exclude = "users")
@ToString(exclude = "users")
public class Role {
    @Id
    @GeneratedValue(strategy = GenerationType.AUTO)
    private int id;
    private String roleName;

    public Role(String roleName) {
        super();
        this.roleName = roleName;
    }
    
    @ManyToMany
    @JoinTable(
            name="user_roles",
            joinColumns = @JoinColumn(name="role_id", nullable = false),
            inverseJoinColumns = @JoinColumn(name="user_id", nullable = false)
            )
    private Set<User> users = new HashSet<>();
}

客户类别

@EventListener(ApplicationReadyEvent.class)
    public void onApplicationStartup(ApplicationReadyEvent event) {
        
        User kiran = new User("kiran", this.passwordEncoder.encode("welcome"), 4500000);
        
        User vinay = new User("vinay", this.passwordEncoder.encode("welcome"), 4500000);        
        
        Role userRole = new Role("ROLE_USER");
        
        Role adminRole = new Role("ROLE_ADMIN");
        
        
        kiran.addRole(userRole);
        
        vinay.addRole(userRole);
        vinay.addRole(adminRole);
        
        this.userRepository.save(kiran);
        this.userRepository.save(vinay);
        
    }

我哪里做错了？