Java org.hsqldb.HsqlException:lob在Spring Junit中不再有效

我在通过SpringJUnit运行HSQLDB脚本时遇到异常

我使用以下定义和技巧来运行Junit。 HSQLDB脚本：架构定义

CREATE MEMORY TABLE MIGRATION."MIG_STATUS"("STATUS_ID" INTEGER NOT NULL,"STATUS_DESC" VARCHAR(255) COLLATE SQL_TEXT_UCC NOT NULL,CONSTRAINT "PK_MIG_STATUS" PRIMARY KEY("STATUS_ID"))
CREATE MEMORY TABLE MIGRATION."MIG_GROUP"("GROUP_ID" INTEGER NOT NULL,"GROUP_ATTEMPT_ID" INTEGER NOT NULL,"GROUP_NAME" VARCHAR(255) COLLATE SQL_TEXT_UCC,"EMAIL_IDS" VARCHAR(255) COLLATE SQL_TEXT_UCC,"FILE_CONTENT" BLOB(1G),"SCHEDULED_BY" VARCHAR(255) COLLATE SQL_TEXT_UCC,"SCHEDULED_AT" TIMESTAMP,"START_DATETIME" TIMESTAMP,"END_DATETIME" TIMESTAMP,"STATUS_ID" INTEGER,"MIGRATION_TYPE" VARCHAR(255) COLLATE SQL_TEXT_UCC NOT NULL,"PRE_CHECK_RUN_AT" TIMESTAMP,"PRE_CHECK_STATUS" INTEGER,CONSTRAINT "PK_MIG_GROUP" PRIMARY KEY("GROUP_ID","GROUP_ATTEMPT_ID"),CONSTRAINT "FK_GROUP_STATUS" FOREIGN KEY("STATUS_ID") REFERENCES MIGRATION."MIG_STATUS"("STATUS_ID"))
CREATE MEMORY TABLE MIGRATION."MIG_COMPANY"("COMPANY_ID" INTEGER NOT NULL,"ATTEMPT_ID" INTEGER NOT NULL,"GROUP_ID" INTEGER NOT NULL,"GROUP_ATTEMPT_ID" INTEGER NOT NULL,"COMPANY_NAME" VARCHAR(255) COLLATE SQL_TEXT_UCC,"USER_COUNT" INTEGER,"STATUS_ID" INTEGER,"START_DATETIME" TIMESTAMP,"END_DATETIME" TIMESTAMP,"MIGRATION_TYPE" VARCHAR(255) COLLATE SQL_TEXT_UCC NOT NULL,CONSTRAINT "PK_MIG_COMPANY" PRIMARY KEY("COMPANY_ID","ATTEMPT_ID"),CONSTRAINT "FK_COMPANY_MIG_GROUP" FOREIGN KEY("GROUP_ID","GROUP_ATTEMPT_ID") REFERENCES MIGRATION."MIG_GROUP"("GROUP_ID","GROUP_ATTEMPT_ID"),CONSTRAINT "FK_COMPANY_STATUS" FOREIGN KEY("STATUS_ID") REFERENCES MIGRATION."MIG_STATUS"("STATUS_ID"))
INSERT INTO MIG_STATUS VALUES(1,'Scheduled')
INSERT INTO "MIG_GROUP" VALUES(310,1,'mig_2274_mar4_v8',NULL,30,NULL,'2015-03-04 13:40:00.000000','2015-03-04 13:40:54.000000','2015-03-04 13:47:51.000000',201,'Forward',NULL,0)
INSERT INTO "MIG_COMPANY" VALUES(2274,5,310,1,'test31',0,400,'2015-03-04 13:40:53.000000','2015-03-04 13:47:51.000000','Forward')

休眠实体：

第2类：

@Table(name = "MIG_GROUP")
public class Group extends BaseObject {

.....
    @Column(name = "FILE_CONTENT")
    private byte[] fileContent;
.....
}

第3类：

@Repository
public class CompanyDaoHibernate<E> implements CompanyDao<E> {
    @Override
    public Company getCompanyById(final int companyId, final int attemptId) {
        final Session session = sessionFactory.getCurrentSession();
        final Criteria criteria =
                session.createCriteria(Company.class).add(Restrictions.eq("companyId", companyId))
                        .add(Restrictions.eq("attemptId", attemptId));
        return (Company) criteria.uniqueResult();
    }

}

错误

SqlExceptionHelper.logExceptions(146) | An SQLException was provoked by the following failure: org.hsqldb.HsqlException: lob is no longer valid Tests run: 1, Failures: 0, Errors: 1, Skipped: 0, Time elapsed: 6.135 sec <<< FAILURE!

SqlExceptionHelper.logExceptions（146）|以下故障引发了SQLException:org.hsqldb.HsqlException:lob不再有效测试运行：1，故障：0，错误：1，跳过：0，所用时间：6.135秒
.....
    {
        companyManager.getCompanyById(2274, 5);
    ......
    }

SqlExceptionHelper.logExceptions(146) | An SQLException was provoked by the following failure: org.hsqldb.HsqlException: lob is no longer valid Tests run: 1, Failures: 0, Errors: 1, Skipped: 0, Time elapsed: 6.135 sec <<< FAILURE!