按多列分组而不获取结果

Question

我在toad编辑器上执行查询，我得到了相应的结果。但是，当我在我的eclipse上运行它时，查询正常执行而没有错误，但我的结果列表显示零记录。我应该做哪些更改？

Query query =entityManager.createQuery(" select s.name,c.event_name, count(*) from "
                    + " HistoryEntity c ,ServiceEntity s  "
                    + " where "
                    +" s.code=c.code"
                    + " AND "
                    + "c.entry_date  BETWEEN :dateDeb  AND :dateFin "
                    + " AND "
                    + " c.state='FINAL'"
                    + " AND "
                    + " c.idc= :idc"
                    + " group by s.name, c.event_name order by s.name, c.event_name"
                    );
        query.setParameter("dateDeb", dateDeb);
        query.setParameter("dateFin", dateFin);
        query.setParameter("idc", idc); 

        resultList = query.getResultList();

        LOG.info("Query done "+ resultList.size());