问使用Hibernate处理重复数据时出现内存不足异常

EN

class MainApplication{
@Column(name="main_app_id")
    int mainAppId;

    String firstName;
    String lastName;
    List<Address> address ;
}

class SupportingApplication{
    int supportingAppId;

    //defining the relation

    @Column(name="main_app_id")
    int mainAppId

    @OneToOne
    @JoinColumn(name="main_app_id", referencedColumnName="main_app_id", insertable=false, updatable=false)
    private MainApplication mainApplication;

    String city;
    String state;   
}