解决报错

src/main/java/com/xjrsoft/module/room/service/impl/RoomBedServiceImpl.java

@@ -618,8 +618,11 @@ public class RoomBedServiceImpl extends MPJBaseServiceImpl<RoomBedMapper, RoomBe
                     roomMapper.updateById(updRoom);
                 }else{
                     Room updRoom = roomMapper.selectById(roomClassCountVo.getId());
-                    updRoom.setIsMax(0);
-                    roomMapper.updateById(updRoom);
+                    if(updRoom != null){
+                        updRoom.setIsMax(0);
+                        roomMapper.updateById(updRoom);
+                    }
+
                 }
             }
         }else{