WorkerRecordVo workerRecordVo = data.stream().filter(vo->vo.getWorkHistoryVOList()!=null).max(Comparator.comparingInt(vo -> vo.getWorkHistoryVOList().size())).orElse(null);
WorkerRecordVo workerRecordVo = data.stream().filter(vo->vo.getWorkHistoryVOList()!=null).max(Comparator.comparingInt(vo -> vo.getWorkHistoryVOList().size())).orElse(null);