Index: ssts-userecord/src/main/java/com/forgon/disinfectsystem/useRecord/service/UseRecordManagerImpl.java
===================================================================
diff -u -r16969 -r16975
--- ssts-userecord/src/main/java/com/forgon/disinfectsystem/useRecord/service/UseRecordManagerImpl.java	(.../UseRecordManagerImpl.java)	(revision 16969)
+++ ssts-userecord/src/main/java/com/forgon/disinfectsystem/useRecord/service/UseRecordManagerImpl.java	(.../UseRecordManagerImpl.java)	(revision 16975)
@@ -794,7 +794,8 @@
 				if(!tousseInstanceIDSet.contains(tousseInstance.getId())){
 					//如果为聚合包,则不记录所处使用记录的位置号及更新为已使用的状态
 					if(!tousseInstance.isComboTousse()){
-						tousseInstance.setUseRecordSortNumber(tousseInstance.getUseRecordSortNumber() + tousseInstanceIDSet.size());
+						Integer useRecordSortNumber = tousseInstance.getUseRecordSortNumber();
+						tousseInstance.setUseRecordSortNumber((useRecordSortNumber == null ? 0 : useRecordSortNumber) + tousseInstanceIDSet.size());
 						objectDao.saveOrUpdate(tousseInstance);
 					}
 				}