[ 
https://issues.apache.org/jira/browse/SPARK-17884?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
 ]

Priyanka Garg closed SPARK-17884.
---------------------------------

Closing this issue... Changes are merged.

> In the cast expression, casting from empty string to interval type throws 
> NullPointerException
> ----------------------------------------------------------------------------------------------
>
>                 Key: SPARK-17884
>                 URL: https://issues.apache.org/jira/browse/SPARK-17884
>             Project: Spark
>          Issue Type: Bug
>          Components: SQL
>    Affects Versions: 2.0.1
>            Reporter: Priyanka Garg
>            Assignee: Priyanka Garg
>             Fix For: 1.6.3, 2.0.2, 2.1.0
>
>
> When the cast expression is applied on empty string "" to cast it to interval 
> type it throws Null pointer exception..
> Getting the same exception when I tried reproducing the same through test case
> checkEvaluation(Cast(Literal(""), CalendarIntervalType), null)
> Exception i am getting is:
> java.lang.NullPointerException was thrown.
> java.lang.NullPointerException
>       at 
> org.apache.spark.sql.catalyst.expressions.codegen.UnsafeRowWriter.write(UnsafeRowWriter.java:254)
>       at 
> org.apache.spark.sql.catalyst.expressions.GeneratedClass$SpecificUnsafeProjection.apply(Unknown
>  Source)
>       at 
> org.apache.spark.sql.catalyst.expressions.GeneratedClass$SpecificUnsafeProjection.apply(Unknown
>  Source)
>       at 
> org.apache.spark.sql.catalyst.expressions.ExpressionEvalHelper$class.checkEvalutionWithUnsafeProjection(ExpressionEvalHelper.scala:181)
>       at 
> org.apache.spark.sql.catalyst.expressions.CastSuite.checkEvalutionWithUnsafeProjection(CastSuite.scala:33)
>       at 
> org.apache.spark.sql.catalyst.expressions.ExpressionEvalHelper$class.checkEvaluation(ExpressionEvalHelper.scala:64)
>       at 
> org.apache.spark.sql.catalyst.expressions.CastSuite.checkEvaluation(CastSuite.scala:33)
>       at 
> org.apache.spark.sql.catalyst.expressions.CastSuite$$anonfun$22.apply$mcV$sp(CastSuite.scala:770)
>       at 
> org.apache.spark.sql.catalyst.expressions.CastSuite$$anonfun$22.apply(CastSuite.scala:767)
>       at 
> org.apache.spark.sql.catalyst.expressions.CastSuite$$anonfun$22.apply(CastSuite.scala:767)
>       at 
> org.scalatest.Transformer$$anonfun$apply$1.apply$mcV$sp(Transformer.scala:22)
>       at org.scalatest.OutcomeOf$class.outcomeOf(OutcomeOf.scala:85)
>       at org.scalatest.OutcomeOf$.outcomeOf(OutcomeOf.scala:104)
>       at org.scalatest.Transformer.apply(Transformer.scala:22)
>       at org.scalatest.Transformer.apply(Transformer.scala:20)
>       at org.scalatest.FunSuiteLike$$anon$1.apply(FunSuiteLike.scala:166)
>       at org.apache.spark.SparkFunSuite.withFixture(SparkFunSuite.scala:57)
>       at 
> org.scalatest.FunSuiteLike$class.invokeWithFixture$1(FunSuiteLike.scala:163)
>       at 
> org.scalatest.FunSuiteLike$$anonfun$runTest$1.apply(FunSuiteLike.scala:175)
>       at 
> org.scalatest.FunSuiteLike$$anonfun$runTest$1.apply(FunSuiteLike.scala:175)
>       at org.scalatest.SuperEngine.runTestImpl(Engine.scala:306)
>       at org.scalatest.FunSuiteLike$class.runTest(FunSuiteLike.scala:175)
>       at org.scalatest.FunSuite.runTest(FunSuite.scala:1555)
>       at 
> org.scalatest.FunSuiteLike$$anonfun$runTests$1.apply(FunSuiteLike.scala:208)
>       at 
> org.scalatest.FunSuiteLike$$anonfun$runTests$1.apply(FunSuiteLike.scala:208)
>       at 
> org.scalatest.SuperEngine$$anonfun$traverseSubNodes$1$1.apply(Engine.scala:413)
>       at 
> org.scalatest.SuperEngine$$anonfun$traverseSubNodes$1$1.apply(Engine.scala:401)
>       at scala.collection.immutable.List.foreach(List.scala:381)
>       at org.scalatest.SuperEngine.traverseSubNodes$1(Engine.scala:401)
>       at 
> org.scalatest.SuperEngine.org$scalatest$SuperEngine$$runTestsInBranch(Engine.scala:396)
>       at org.scalatest.SuperEngine.runTestsImpl(Engine.scala:483)
>       at org.scalatest.FunSuiteLike$class.runTests(FunSuiteLike.scala:208)
>       at org.scalatest.FunSuite.runTests(FunSuite.scala:1555)
>       at org.scalatest.Suite$class.run(Suite.scala:1424)
>       at 
> org.scalatest.FunSuite.org$scalatest$FunSuiteLike$$super$run(FunSuite.scala:1555)
>       at 
> org.scalatest.FunSuiteLike$$anonfun$run$1.apply(FunSuiteLike.scala:212)
>       at 
> org.scalatest.FunSuiteLike$$anonfun$run$1.apply(FunSuiteLike.scala:212)
>       at org.scalatest.SuperEngine.runImpl(Engine.scala:545)
>       at org.scalatest.FunSuiteLike$class.run(FunSuiteLike.scala:212)
>       at 
> org.apache.spark.SparkFunSuite.org$scalatest$BeforeAndAfterAll$$super$run(SparkFunSuite.scala:29)
>       at 
> org.scalatest.BeforeAndAfterAll$class.liftedTree1$1(BeforeAndAfterAll.scala:257)
>       at 
> org.scalatest.BeforeAndAfterAll$class.run(BeforeAndAfterAll.scala:256)
>       at org.apache.spark.SparkFunSuite.run(SparkFunSuite.scala:29)
>       at org.scalatest.tools.SuiteRunner.run(SuiteRunner.scala:55)
>       at 
> org.scalatest.tools.Runner$$anonfun$doRunRunRunDaDoRunRun$3.apply(Runner.scala:2563)
>       at 
> org.scalatest.tools.Runner$$anonfun$doRunRunRunDaDoRunRun$3.apply(Runner.scala:2557)
>       at scala.collection.immutable.List.foreach(List.scala:381)
>       at org.scalatest.tools.Runner$.doRunRunRunDaDoRunRun(Runner.scala:2557)
>       at 
> org.scalatest.tools.Runner$$anonfun$runOptionallyWithPassFailReporter$2.apply(Runner.scala:1044)
>       at 
> org.scalatest.tools.Runner$$anonfun$runOptionallyWithPassFailReporter$2.apply(Runner.scala:1043)
>       at 
> org.scalatest.tools.Runner$.withClassLoaderAndDispatchReporter(Runner.scala:2722)
>       at 
> org.scalatest.tools.Runner$.runOptionallyWithPassFailReporter(Runner.scala:1043)
>       at org.scalatest.tools.Runner$.run(Runner.scala:883)
>       at org.scalatest.tools.Runner.run(Runner.scala)
>       at 
> org.jetbrains.plugins.scala.testingSupport.scalaTest.ScalaTestRunner.runScalaTest2(ScalaTestRunner.java:138)
>       at 
> org.jetbrains.plugins.scala.testingSupport.scalaTest.ScalaTestRunner.main(ScalaTestRunner.java:28)
>       at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
>       at 
> sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
>       at 
> sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
>       at java.lang.reflect.Method.invoke(Method.java:498)
>       at com.intellij.rt.execution.application.AppMain.main(AppMain.java:147)



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