修改代码

xx-order/xx-order-server/src/main/java/com/xxfc/platform/order/biz/inner/OrderCancelBiz.java

 package com.xxfc.platform.order.biz.inner;
 
 import cn.hutool.core.bean.BeanUtil;
+import cn.hutool.core.collection.CollUtil;
 import cn.hutool.core.convert.Convert;
 import cn.hutool.core.date.DateUtil;
 import cn.hutool.core.util.ArrayUtil;
@@ -341,7 +342,7 @@ public class OrderCancelBiz {
             if(StrUtil.isNotBlank(baseOrder.getCouponTickerNos())) {
                 List<String> backCoupons = (null == inProgressVO)? Convert.convert(List.class, baseOrder.getCouponTickerNos().split(",")): inProgressVO.getBackCoupons();
                 //设置订单参数
-                baseOrder.setBackCoupon(ArrayUtil.join(backCoupons, ","));
+                baseOrder.setBackCoupon(CollUtil.join(backCoupons, ","));
 
                 for(String backCoupon : backCoupons) {
                     activityFeign.cancelUse(backCoupon);