Github user mengxr commented on a diff in the pull request:
https://github.com/apache/spark/pull/8505#discussion_r40752797
--- Diff: mllib/src/main/scala/org/apache/spark/ml/feature/HashingTF.scala
---
@@ -32,15 +32,20 @@ import org.apache.spark.sql.types.{ArrayType,
StructType}
* :: Experimental ::
* Maps a sequence of terms to their term frequencies using the hashing
trick.
*/
+@Since("1.2.0")
@Experimental
-class HashingTF(override val uid: String) extends Transformer with
HasInputCol with HasOutputCol {
+class HashingTF @Since("1.2.0") (@Since("1.4.0") override val uid: String)
extends Transformer
--- End diff --
The constructor with `uid` should be since `1.4.0`. The default constructor
below is since `1.2.0`. Please check others as well.
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