fix

cooleshow-user/user-biz/src/main/java/com/yonge/cooleshow/biz/dal/service/impl/CourseGroupServiceImpl.java

@@ -1602,7 +1602,7 @@ public class CourseGroupServiceImpl extends ServiceImpl<CourseGroupDao, CourseGr
                 .eq(CourseScheduleStudentPayment::getCourseGroupId, courseGroup.getId()));
         Set<Long> userIds = list.stream().map(CourseScheduleStudentPayment::getUserId).collect(Collectors.toSet());
         // 学生
-        Map<Long, com.yonge.cooleshow.biz.dal.entity.SysUser> mapByIds = sysUserService.getMapByIds((List<Long>) userIds);
+        Map<Long, com.yonge.cooleshow.biz.dal.entity.SysUser> mapByIds = sysUserService.getMapByIds(new ArrayList<>( userIds));
 
         Map<Long, String> receivers = new HashMap<>();
         for (com.yonge.cooleshow.biz.dal.entity.SysUser value : mapByIds.values()) {