Grails3 groupBy分组统计

SQL语句：

select defectClassify, count(*) from t_problem_problemmaster group by defectClassify 

grails代码：

def criteria = ProblemMaster.createCriteria()
    def defectTypeList = criteria.list {
    resultTransformer(CriteriaSpecification.ALIAS_TO_ENTITY_MAP)
    projections {
        groupProperty('defectClassify', 'defectClassify')
        count('id', 'cnt')
    }
}

结果：