Eclipse Hibernate 3.2.6/JPA:In属性'；X'；，"；映射为；属性'；Y'；此关系的映射类型无效

我有这门课

@SuppressWarnings("serial")
@Entity
@Table(name = "T_APPLICATION")
@SequenceGenerator(name = "seqAPPLICATION", sequenceName = "SEQ_APPLICATION", allocationSize = 1)

public class Application implements java.io.Serializable {

    private Set<Service> services = new HashSet<Service>(0);

    @OneToMany (fetch = FetchType.LAZY, mappedBy = "application", cascade = { CascadeType.REMOVE })
    @Cascade({ org.hibernate.annotations.CascadeType.DELETE_ORPHAN })
    @OrderBy("id")
    public Set<Service> getServices() {
        return this.services;
    }
..
}

但是在我的Eclipse版本：Mars.2（4.5.2）编辑器中，我有这个错误

在属性“服务”中，“映射者”属性“应用程序”具有无效的 此关系的映射类型。

刷新和清理我的项目没有帮助

这是我的JPA eclipse验证器

---

Eclipse不必要地抱怨。hibernate应该可以正常工作。尝试刷新项目并更新persistence.xml中的类列表。看看这个，我没有在persistence.xml中定义任何类，这是哪个版本的Eclipse，只是为了完整性？

@SuppressWarnings("serial")
@Entity
@Table(name = "T_SERVICE")
@SequenceGenerator(name = "seqSERVICE", sequenceName = "SEQ_SERVICE")
public class Service extends ItemBase implements java.io.Serializable {

private Application application;

@ManyToOne(fetch = FetchType.LAZY)
    @JoinColumn(name = "APPLICATION", nullable = false)
    public Application getApplication() {
        return this.application;
    }

    public void setApplication(Application application) {
        this.application = application;
    }
..
}