fix

mec-biz/src/main/java/com/ym/mec/biz/service/impl/UserMusicStarServiceImpl.java

@@ -221,6 +221,6 @@ public class UserMusicStarServiceImpl extends ServiceImpl<UserMusicStarMapper, U
         if (CollectionUtils.isEmpty(list)) {
             return new HashMap<>();
         }
-        return list.stream().collect(Collectors.toMap(UserMusicStar::getUserMusicId, o->true));
+        return list.stream().collect(Collectors.toMap(UserMusicStar::getUserMusicId, o->true, (k1, k2) -> k1));
     }
 }