LuciferYang opened a new pull request #30234: URL: https://github.com/apache/spark/pull/30234
### What changes were proposed in this pull request? The purpose of this pr is to partial resolve SPARK-33285. `Auto-application` is dropped in Scala 3 and deprecated in 2.13 (https://github.com/scala/scala/pull/8833) now. So we should add the parens when accessed empty-paren method. For example, if definition as follows: ``` Class Foo { def bar(): Unit = {} } val foo = new Foo ``` `foo.bar()` is recommend , not `foo.bar`. So the main change of this pr is only add the parens where needed. ### Why are the changes needed? eliminate compilation warnings in Scala 2.13 ### Does this PR introduce _any_ user-facing change? No ### How was this patch tested? Pass the Jenkins or GitHub Action ---------------------------------------------------------------- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. For queries about this service, please contact Infrastructure at: us...@infra.apache.org --------------------------------------------------------------------- To unsubscribe, e-mail: reviews-unsubscr...@spark.apache.org For additional commands, e-mail: reviews-h...@spark.apache.org