[jira] [Resolved] (SPARK-47965) Avoid orNull in TypedConfigBuilder and OptionalConfigEntry

["Hyukjin Kwon (Jira)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/SPARK-47965?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Hyukjin Kwon resolved SPARK-47965.
----------------------------------
    Fix Version/s: 4.0.0
       Resolution: Fixed

Issue resolved by pull request 46197
[https://github.com/apache/spark/pull/46197]

> Avoid orNull in TypedConfigBuilder and OptionalConfigEntry
> ----------------------------------------------------------
>
>                 Key: SPARK-47965
>                 URL: https://issues.apache.org/jira/browse/SPARK-47965
>             Project: Spark
>          Issue Type: Improvement
>          Components: Spark Core
>    Affects Versions: 4.0.0
>            Reporter: Hyukjin Kwon
>            Assignee: Hyukjin Kwon
>            Priority: Minor
>              Labels: pull-request-available
>             Fix For: 4.0.0
>
>
> Configuration values/keys cannot be nulls. We should fix:
> {code}
> diff --git a/core/src/main/scala/org/apache/spark/internal/config/ConfigBuilder.scala b/core/src/main/scala/org/apache/spark/internal/config/ConfigBuilder.scala
> index 1f19e9444d38..d06535722625 100644
> --- a/core/src/main/scala/org/apache/spark/internal/config/ConfigBuilder.scala
> +++ b/core/src/main/scala/org/apache/spark/internal/config/ConfigBuilder.scala
> @@ -94,7 +94,7 @@ private[spark] class TypedConfigBuilder[T](
>    import ConfigHelpers._
>    def this(parent: ConfigBuilder, converter: String => T) = {
> -    this(parent, converter, Option(_).map(_.toString).orNull)
> +    this(parent, converter, { v: T => v.toString })
>    }
>    /** Apply a transformation to the user-provided values of the config entry. */
> {code}



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