CascadeType.ALL和生命周期回调存在问题

@Entity
public class Account extends UUIDBase {
    private Profile profile;

    @OneToOne(cascade = CascadeType.ALL, optional = false)
    public Profile getProfile() {
       return profile;
    }

    public void setProfile(Profile profile) {
        this.profile = profile;
    }
}

@Entity
public class Profile extends UUIDBase {
  ...
}

@Entity
public class Employee extends UUIDBase {
    public Account account;

    @OneToOne(cascade = {CascadeType.REFRESH, CascadeType.REMOVE}, orphanRemoval = true)
    public Account getAccount() {
        return this.account;
    }

    public void setAccount(Account account) { 
        this.account = account;
    } 

public void saveEmployee(Employee data) {
    Employee savedEmployee = empDao.saveEmployee(data);
    accountService.saveAccount(data.getAccount()); <-- Here is the failure
}