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Posted to issues@spark.apache.org by "Hyukjin Kwon (JIRA)" <ji...@apache.org> on 2019/05/21 04:04:22 UTC

[jira] [Updated] (SPARK-20299) NullPointerException when null and string are in a tuple while encoding Dataset

     [ https://issues.apache.org/jira/browse/SPARK-20299?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Hyukjin Kwon updated SPARK-20299:
---------------------------------
    Labels: bulk-closed  (was: )

> NullPointerException when null and string are in a tuple while encoding Dataset
> -------------------------------------------------------------------------------
>
>                 Key: SPARK-20299
>                 URL: https://issues.apache.org/jira/browse/SPARK-20299
>             Project: Spark
>          Issue Type: Bug
>          Components: SQL
>    Affects Versions: 2.2.0
>            Reporter: Jacek Laskowski
>            Priority: Minor
>              Labels: bulk-closed
>
> When creating a Dataset from a tuple with {{null}} and a string, NPE is reported. When either is removed, it works fine.
> {code}
> scala> Seq((1, null.asInstanceOf[Int]), (2, 1)).toDS
> res43: org.apache.spark.sql.Dataset[(Int, Int)] = [_1: int, _2: int]
> scala> Seq(("1", null.asInstanceOf[Int]), ("2", 1)).toDS
> java.lang.RuntimeException: Error while encoding: java.lang.NullPointerException
> staticinvoke(class org.apache.spark.unsafe.types.UTF8String, StringType, fromString, assertnotnull(assertnotnull(input[0, scala.Tuple2, true], top level Product input object), - root class: "scala.Tuple2")._1, true) AS _1#474
> assertnotnull(assertnotnull(input[0, scala.Tuple2, true], top level Product input object), - root class: "scala.Tuple2")._2 AS _2#475
>   at org.apache.spark.sql.catalyst.encoders.ExpressionEncoder.toRow(ExpressionEncoder.scala:290)
>   at org.apache.spark.sql.SparkSession$$anonfun$2.apply(SparkSession.scala:454)
>   at org.apache.spark.sql.SparkSession$$anonfun$2.apply(SparkSession.scala:454)
>   at scala.collection.TraversableLike$$anonfun$map$1.apply(TraversableLike.scala:234)
>   at scala.collection.TraversableLike$$anonfun$map$1.apply(TraversableLike.scala:234)
>   at scala.collection.immutable.List.foreach(List.scala:381)
>   at scala.collection.TraversableLike$class.map(TraversableLike.scala:234)
>   at scala.collection.immutable.List.map(List.scala:285)
>   at org.apache.spark.sql.SparkSession.createDataset(SparkSession.scala:454)
>   at org.apache.spark.sql.SQLContext.createDataset(SQLContext.scala:377)
>   at org.apache.spark.sql.SQLImplicits.localSeqToDatasetHolder(SQLImplicits.scala:246)
>   ... 48 elided
> Caused by: java.lang.NullPointerException
>   at org.apache.spark.sql.catalyst.expressions.GeneratedClass$SpecificUnsafeProjection.apply_1$(Unknown Source)
>   at org.apache.spark.sql.catalyst.expressions.GeneratedClass$SpecificUnsafeProjection.apply(Unknown Source)
>   at org.apache.spark.sql.catalyst.encoders.ExpressionEncoder.toRow(ExpressionEncoder.scala:287)
>   ... 58 more
> {code}



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