fix bug

mallinkService/src/main/java/com/iformall/service/impl/WxCouponOrderServiceImpl.java

@@ -550,7 +550,7 @@ public class WxCouponOrderServiceImpl implements WxCouponOrderService {
     }
     
     private List<WxCouponOrderCVo> couponOrderListToCVoList(TenantEntity tenantEntity,List<WxCouponOrder> couponOrderList) {
-    	if (null != couponOrderList) {
+    	if (null != couponOrderList && couponOrderList.size() >0 ) {
     		//查询coupon
     		List<Long> couponIds = new ArrayList<Long>();
     		for (int i = 0 ; i < couponOrderList.size(); i++){
@@ -724,7 +724,7 @@ public class WxCouponOrderServiceImpl implements WxCouponOrderService {
     
     
     private List<WxCouponOrderCarCVo> couponOrderListToCarVoList(TenantEntity tenantEntity,List<WxCouponOrder> couponOrderList,boolean getMerchant) {
-    	if (null != couponOrderList) {
+    	if (null != couponOrderList && couponOrderList.size() >0 ){
     		//查询coupon
     		List<Long> couponIds = new ArrayList<Long>();
     		for (int i = 0 ; i < couponOrderList.size(); i++){
@@ -2177,7 +2177,7 @@ public class WxCouponOrderServiceImpl implements WxCouponOrderService {
     }
     
     private List<WxCardCVo> couponOrderToCardCVoList(TenantEntity tenantEntity,List<WxCouponOrder> couponOrderList) {
-    	if (null != couponOrderList) {
+    	if (null != couponOrderList && couponOrderList.size() > 0 ) {
     		//查询coupon
     		List<Long> couponIds = new ArrayList<Long>();
     		List<Long> couponOrderIds = new ArrayList<Long>();