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https://issues.apache.org/jira/browse/SPARK-19741?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15891463#comment-15891463
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Hyukjin Kwon commented on SPARK-19741:
--------------------------------------

I just tried the code above in the current master and it seems still not 
working whereas the reproducer in SPARK-17368 seems working fine. I tested both 
via IDE not Spark REPL.

Apparently, it seems both JIRAs are similar. Maybe, we should make this as a 
duplicate or describe the differences between them in more details.

> ClassCastException when using Dataset with type containing value types
> ----------------------------------------------------------------------
>
>                 Key: SPARK-19741
>                 URL: https://issues.apache.org/jira/browse/SPARK-19741
>             Project: Spark
>          Issue Type: Bug
>          Components: Spark Core, SQL
>    Affects Versions: 2.1.0
>         Environment: JDK 8 on Ubuntu
> Scala 2.11.8
> Spark 2.1.0
>            Reporter: Lior Regev
>
> The following code reproduces the error
> {code}
> final case class Foo(id: Int) extends AnyVal
> final case class Bar(foo: Foo)
> val foo = Foo(5)
> val bar = Bar(foo)
> import spark.implicits._
> spark.sparkContext.parallelize(0 to 10).toDS().map(_ => bar).collect()
> {code}



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