LuciferYang commented on PR #43713:
URL: https://github.com/apache/spark/pull/43713#issuecomment-1803099217
hmm... if scalac doesn't report this warning, my personal suggestion is to
leave it unfixed. The inheritance hierarchy is as follows:
`AttributeMap` <- `immutable.Map` <- `immutable.MapOps` <-
`collection.MapOps`
Although the `+` of `collection.MapOps` is marked as deprecated, the `+` of
`immutable.MapOps` does not appear to be deprecated.
```scala
/**
* Alias for `updated`
*
* @param kv the key/value pair.
* @tparam V1 the type of the value in the key/value pair.
* @return A new map with the new binding added to this map.
*/
override def + [V1 >: V](kv: (K, V1)): CC[K, V1] = updated(kv._1, kv._2)
```
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