update

src/main/java/com/gogirl/assembler/OrderManageDTOAssembler.java

@@ -27,12 +27,14 @@ public class OrderManageDTOAssembler implements Function<OrderManage, OrderManag
     public OrderManageDTO apply(OrderManage orderManage) {
         OrderManageDTO orderManageDTO = new OrderManageDTO();
         BeanUtils.copyProperties(orderManage, orderManageDTO);
-        orderManageDTO.setOrderServeDTOList(
-                orderManage.getListOrderServer()
-                        .stream()
-                        .map(orderServeDTOAssembler)
-                        .collect(Collectors.toList())
-        );
+        if (ListUtil.isNotEmpty(orderManage.getListOrderServer())) {
+            orderManageDTO.setOrderServeDTOList(
+                    orderManage.getListOrderServer()
+                            .stream()
+                            .map(orderServeDTOAssembler)
+                            .collect(Collectors.toList())
+            );
+        }
         if (orderManage.getScheduleManage() != null) {
             ScheduleManageDTO scheduleManageDTO = scheduleManageDTOAssembler.apply(orderManage.getScheduleManage());
             orderManageDTO.setScheduleManageDTO(scheduleManageDTO);