[jira] [Commented] (SPARK-14222) Remove jackson-module-scala dependency or cross-publish Jackson for Scala 2.12

["Josh Rosen (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/SPARK-14222?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15224965#comment-15224965 ] 

Josh Rosen commented on SPARK-14222:
------------------------------------

Okay, so assuming that we're not jettisoning our jackson-module-scala version then we're going to need to get a version of jackson-module-scala published against a Scala 2.12 milestone in order to unblock 2.12 testing. I've opened https://github.com/FasterXML/jackson-module-scala/issues/245 to request this.

> Remove jackson-module-scala dependency or cross-publish Jackson for Scala 2.12
> ------------------------------------------------------------------------------
>
>                 Key: SPARK-14222
>                 URL: https://issues.apache.org/jira/browse/SPARK-14222
>             Project: Spark
>          Issue Type: Sub-task
>          Components: Build
>            Reporter: Josh Rosen
>
> In order to build Spark against Scala 2.12, we need to either remove our jackson-module-scala dependency or cross-publish Jackson for Scala 2.12. Personally, I'd prefer to remove it because I don't think we make extensive use of it and because I'm not a huge fan of the implicit mapping between case classes and JSON wire formats (the extra verbosity required by other approaches is a feature, IMO, rather than a bug because it makes it much harder to accidentally break wire compatibility).



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