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Posted to issues@spark.apache.org by "Wenchen Fan (JIRA)" <ji...@apache.org> on 2019/05/10 14:51:00 UTC
[jira] [Resolved] (SPARK-27625) ScalaReflection.serializerFor fails
for annotated types
[ https://issues.apache.org/jira/browse/SPARK-27625?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Wenchen Fan resolved SPARK-27625.
---------------------------------
Resolution: Fixed
Fix Version/s: 3.0.0
Issue resolved by pull request 24564
[https://github.com/apache/spark/pull/24564]
> ScalaReflection.serializerFor fails for annotated types
> -------------------------------------------------------
>
> Key: SPARK-27625
> URL: https://issues.apache.org/jira/browse/SPARK-27625
> Project: Spark
> Issue Type: Bug
> Components: SQL
> Affects Versions: 2.3.2, 2.4.2
> Reporter: Patrick Grandjean
> Priority: Major
> Fix For: 3.0.0
>
>
> ScalaRelfection.serializerFor fails for annotated type. Example:
> {code:java}
> case class Foo(
> field1: String,
> field2: Option[String] @Bar
> )
> val rdd: RDD[Foo] = ...
> val ds = rdd.toDS // fails at runtime{code}
> The stack trace:
> {code:java}
> // code placeholder
> User class threw exception: scala.MatchError: scala.Option[String] @Bar (of class scala.reflect.internal.Types$AnnotatedType)
> at org.apache.spark.sql.catalyst.ScalaReflection$$anonfun$org$apache$spark$sql$catalyst$ScalaReflection$$serializerFor$1.apply(ScalaReflection.scala:483)
> at org.apache.spark.sql.catalyst.ScalaReflection$$anonfun$org$apache$spark$sql$catalyst$ScalaReflection$$serializerFor$1.apply(ScalaReflection.scala:445)
> at scala.reflect.internal.tpe.TypeConstraints$UndoLog.undo(TypeConstraints.scala:56)
> at org.apache.spark.sql.catalyst.ScalaReflection$class.cleanUpReflectionObjects(ScalaReflection.scala:824)
> at org.apache.spark.sql.catalyst.ScalaReflection$.cleanUpReflectionObjects(ScalaReflection.scala:39)
> at org.apache.spark.sql.catalyst.ScalaReflection$.org$apache$spark$sql$catalyst$ScalaReflection$$serializerFor(ScalaReflection.scala:445)
> at ...{code}
> I believe that it would be safe to ignore the annotation.
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