[SPARK-25362] Replace Spark Optional class with Java Optional

• Type: Improvement
• Status: Resolved
• Priority: Minor
• Resolution: Won't Fix
• Affects Version/s: 2.4.0
• Component/s: Spark Core
• Labels: release-notes

Environment

org.apache.spark.api.java.Optional exists because we couldn't use Java 8 Optional earlier. We should swap out or remove usages of org.apache.spark.api.java.Optional in Spark 3.

• Assignee: Unassigned
• Reporter: Sean R. Owen
• Created: 06/Sep/18 21:42
• Updated: 21/Oct/18 23:16
• Resolved: 21/Oct/18 23:16

Issue Links

• links to: [Github] Pull Request #22383 (mmolimar)