来自Query的对象的布尔值是错误的

Question

我有这个activity_company表，其中包含一个活动和公司。我试图通过modified_date和id来排序此查询的结果。并且在活动表中有一个布尔字段，例如shared。数据库中的所有共享值都为false，但在此查询之后，结果对象的共享字段显示为true，即使它们在DB中仍为false。知道导致这种情况的原因吗？

SELECT activity.*
FROM activity
INNER JOIN activity_company ON activity.id=activity_company.activity_id
WHERE  activity_company.company_id=1
ORDER BY activity.modified_date, activity.id

这是活动类;

@Entity
public class Activity {

    @Id
    @GeneratedValue(strategy = GenerationType.AUTO)
    private Long id;

    @Column(columnDefinition = "TEXT")
    private String param;
    private Date createdDate;
    private int activityType;

    private long classNameId;
    private long classPK;

    private Date modifiedDate;
    private boolean shared;

    @ManyToOne
    private User creatorUser;

    @ManyToOne
    private Company creatorCompany;

    @OneToMany(mappedBy = "activity")
    private List<ActivityCompany> activityCompanies = new ArrayList<ActivityCompany>();

    @OneToMany(mappedBy = "activity")
    private List<ActivityAttachment> activityAttachments;

    public Activity(String param, User user, int activityType) {
        this.param = param;
        this.createdDate = new Date();
        this.activityType = activityType;
        this.creatorUser = user;
        this.modifiedDate = new Date();
    }

和activitycompany;

@Entity
public class ActivityCompany {

    @Id
    @GeneratedValue(strategy = GenerationType.AUTO)
    private Long id;

    @ManyToOne
    private Activity activity;

    @ManyToOne
    private Company company;

    public Activity getActivity() {

        return activity;
    }

    public void setActivity(Activity activity) {

        this.activity = activity;
    }

    public Company getCompany() {

        return company;
    }

    public void setCompany(Company company) {

        this.company = company;
    }


    public Long getId() {

        return id;
    }

}