[SPARK-35894] Introduce new style enforce to not import scala.collection.Seq/IndexedSeq

• Type: Improvement
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 3.2.0
• Fix Version/s: 3.2.0
• Component/s: Build
• Assignee: Jungtaek Lim
• Reporter: Jungtaek Lim
• Created: 25/Jun/21 12:05
• Updated: 26/Jun/21 00:41
• Resolved: 26/Jun/21 00:41

Description

Due to the changes on Scala 2.13, importing scala.collection.Seq or scala.collection.IndexedSeq would bring weird issue.
(It doesn't bring issue on Scala 2.12 so it's high likely we couldn't indicate the problem till we see complication failure in Scala 2.13.)

Please refer below page to see the details of changes around Seq.
https://docs.scala-lang.org/overviews/core/collections-migration-213.html

It would be nice if we can prevent the case.

Issue Links

• links to: [Github] Pull Request #33085 (HeartSaVioR)