java.lang.NullPointerException was thrown.
java.lang.NullPointerException
at org.apache.spark.sql.internal.SQLConf$.$anonfun$get$1(SQLConf.scala:133)
at scala.Option.map(Option.scala:163)
at org.apache.spark.sql.internal.SQLConf$.get(SQLConf.scala:133)
at org.apache.spark.sql.types.DataType.sameType(DataType.scala:88)
at org.apache.spark.sql.catalyst.analysis.TypeCoercion$.$anonfun$haveSameType$1(TypeCoercion.scala:290)
at org.apache.spark.sql.catalyst.analysis.TypeCoercion$.$anonfun$haveSameType$1$adapted(TypeCoercion.scala:290)
at scala.collection.LinearSeqOptimized.forall(LinearSeqOptimized.scala:85)
at scala.collection.LinearSeqOptimized.forall$(LinearSeqOptimized.scala:82)
at scala.collection.immutable.List.forall(List.scala:89)
at org.apache.spark.sql.catalyst.analysis.TypeCoercion$.haveSameType(TypeCoercion.scala:290)
at org.apache.spark.sql.catalyst.expressions.ComplexTypeMergingExpression.dataTypeCheck(Expression.scala:773)
at org.apache.spark.sql.catalyst.expressions.ComplexTypeMergingExpression.dataTypeCheck$(Expression.scala:768)
at org.apache.spark.sql.catalyst.expressions.If.dataTypeCheck(conditionalExpressions.scala:35)
at org.apache.spark.sql.catalyst.expressions.ComplexTypeMergingExpression.dataType(Expression.scala:779)
at org.apache.spark.sql.catalyst.expressions.ComplexTypeMergingExpression.dataType$(Expression.scala:778)
at org.apache.spark.sql.catalyst.expressions.If.dataType(conditionalExpressions.scala:35)
at org.apache.spark.sql.catalyst.expressions.aggregate.First.dataType(First.scala:51)
at org.apache.spark.sql.catalyst.expressions.aggregate.AggregateExpression.dataType(interfaces.scala:126)
at org.apache.spark.sql.catalyst.expressions.Alias.dataType(namedExpressions.scala:163)
at org.apache.spark.sql.catalyst.expressions.NamedExpression.typeSuffix(namedExpressions.scala:101)
at org.apache.spark.sql.catalyst.expressions.NamedExpression.typeSuffix$(namedExpressions.scala:99)
at org.apache.spark.sql.catalyst.expressions.Alias.typeSuffix(namedExpressions.scala:145)
at org.apache.spark.sql.catalyst.expressions.Alias.toString(namedExpressions.scala:192)
at java.lang.String.valueOf(String.java:2994)
at scala.collection.mutable.StringBuilder.append(StringBuilder.scala:203)
at scala.collection.TraversableOnce.$anonfun$addString$1(TraversableOnce.scala:367)
at scala.collection.immutable.List.foreach(List.scala:392)
at scala.collection.TraversableOnce.addString(TraversableOnce.scala:360)
at scala.collection.TraversableOnce.addString$(TraversableOnce.scala:356)
at scala.collection.AbstractTraversable.addString(Traversable.scala:108)
at scala.collection.TraversableOnce.mkString(TraversableOnce.scala:326)
at scala.collection.TraversableOnce.mkString$(TraversableOnce.scala:325)
at scala.collection.AbstractTraversable.mkString(Traversable.scala:108)
at org.apache.spark.sql.catalyst.util.package$.truncatedString(package.scala:198)
at org.apache.spark.sql.catalyst.trees.TreeNode.$anonfun$argString$1(TreeNode.scala:443)
at scala.collection.Iterator$$anon$11.nextCur(Iterator.scala:484)
at scala.collection.Iterator$$anon$11.hasNext(Iterator.scala:490)
at scala.collection.Iterator.foreach(Iterator.scala:941)
at scala.collection.Iterator.foreach$(Iterator.scala:941)
at scala.collection.AbstractIterator.foreach(Iterator.scala:1429)
at scala.collection.TraversableOnce.addString(TraversableOnce.scala:360)
at scala.collection.TraversableOnce.addString$(TraversableOnce.scala:356)
at scala.collection.AbstractIterator.addString(Iterator.scala:1429)
at scala.collection.TraversableOnce.mkString(TraversableOnce.scala:326)
at scala.collection.TraversableOnce.mkString$(TraversableOnce.scala:325)
at scala.collection.AbstractIterator.mkString(Iterator.scala:1429)
at scala.collection.TraversableOnce.mkString(TraversableOnce.scala:328)
at scala.collection.TraversableOnce.mkString$(TraversableOnce.scala:328)
at scala.collection.AbstractIterator.mkString(Iterator.scala:1429)
at org.apache.spark.sql.catalyst.trees.TreeNode.argString(TreeNode.scala:457)
at org.apache.spark.sql.catalyst.trees.TreeNode.simpleString(TreeNode.scala:465)
at org.apache.spark.sql.catalyst.plans.QueryPlan.simpleString(QueryPlan.scala:176)
at org.apache.spark.sql.catalyst.plans.QueryPlan.verboseString(QueryPlan.scala:178)
at org.apache.spark.sql.catalyst.trees.TreeNode.generateTreeString(TreeNode.scala:571)
at org.apache.spark.sql.catalyst.trees.TreeNode.treeString(TreeNode.scala:494)
at org.apache.spark.sql.catalyst.plans.QueryPlan$.append(QueryPlan.scala:316)
at org.apache.spark.sql.execution.QueryExecution.org$apache$spark$sql$execution$QueryExecution$$writePlans(QueryExecution.scala:130)
at org.apache.spark.sql.execution.QueryExecution.toString(QueryExecution.scala:137)
at java.lang.String.valueOf(String.java:2994)
at java.lang.StringBuilder.append(StringBuilder.java:131)
at org.apache.spark.sql.QueryTest$.checkAnswer(QueryTest.scala:248)
at org.apache.spark.sql.QueryTest.checkAnswer(QueryTest.scala:152)
at org.apache.spark.sql.hive.execution.AggregationQuerySuite.$anonfun$new$50(AggregationQuerySuite.scala:692)
at scala.runtime.java8.JFunction0$mcV$sp.apply(JFunction0$mcV$sp.java:23)
at org.scalatest.OutcomeOf.outcomeOf(OutcomeOf.scala:85)
at org.scalatest.OutcomeOf.outcomeOf$(OutcomeOf.scala:83)
at org.scalatest.OutcomeOf$.outcomeOf(OutcomeOf.scala:104)
at org.scalatest.Transformer.apply(Transformer.scala:22)
at org.scalatest.Transformer.apply(Transformer.scala:20)
at org.scalatest.FunSuiteLike$$anon$1.apply(FunSuiteLike.scala:186)
at org.apache.spark.SparkFunSuite.withFixture(SparkFunSuite.scala:104)
at org.scalatest.FunSuiteLike.invokeWithFixture$1(FunSuiteLike.scala:184)
at org.scalatest.FunSuiteLike.$anonfun$runTest$1(FunSuiteLike.scala:196)
at org.scalatest.SuperEngine.runTestImpl(Engine.scala:289)
at org.scalatest.FunSuiteLike.runTest(FunSuiteLike.scala:196)
at org.scalatest.FunSuiteLike.runTest$(FunSuiteLike.scala:178)
at org.scalatest.FunSuite.runTest(FunSuite.scala:1560)
at org.scalatest.FunSuiteLike.$anonfun$runTests$1(FunSuiteLike.scala:229)
at org.scalatest.SuperEngine.$anonfun$runTestsInBranch$1(Engine.scala:396)
at scala.collection.immutable.List.foreach(List.scala:392)
at org.scalatest.SuperEngine.traverseSubNodes$1(Engine.scala:384)
at org.scalatest.SuperEngine.runTestsInBranch(Engine.scala:379)
at org.scalatest.SuperEngine.runTestsImpl(Engine.scala:461)
at org.scalatest.FunSuiteLike.runTests(FunSuiteLike.scala:229)
at org.scalatest.FunSuiteLike.runTests$(FunSuiteLike.scala:228)
at org.scalatest.FunSuite.runTests(FunSuite.scala:1560)
at org.scalatest.Suite.run(Suite.scala:1147)
at org.scalatest.Suite.run$(Suite.scala:1129)
at org.scalatest.FunSuite.org$scalatest$FunSuiteLike$$super$run(FunSuite.scala:1560)
at org.scalatest.FunSuiteLike.$anonfun$run$1(FunSuiteLike.scala:233)
at org.scalatest.SuperEngine.runImpl(Engine.scala:521)
at org.scalatest.FunSuiteLike.run(FunSuiteLike.scala:233)
at org.scalatest.FunSuiteLike.run$(FunSuiteLike.scala:232)
at org.apache.spark.SparkFunSuite.org$scalatest$BeforeAndAfterAll$$super$run(SparkFunSuite.scala:53)
at org.scalatest.BeforeAndAfterAll.liftedTree1$1(BeforeAndAfterAll.scala:213)
at org.scalatest.BeforeAndAfterAll.run(BeforeAndAfterAll.scala:210)
at org.scalatest.BeforeAndAfterAll.run$(BeforeAndAfterAll.scala:208)
at org.apache.spark.SparkFunSuite.run(SparkFunSuite.scala:53)
at org.scalatest.Suite.callExecuteOnSuite$1(Suite.scala:1210)
at org.scalatest.Suite.$anonfun$runNestedSuites$1(Suite.scala:1257)
at scala.collection.IndexedSeqOptimized.foreach(IndexedSeqOptimized.scala:36)
at scala.collection.IndexedSeqOptimized.foreach$(IndexedSeqOptimized.scala:33)
at scala.collection.mutable.ArrayOps$ofRef.foreach(ArrayOps.scala:198)
at org.scalatest.Suite.runNestedSuites(Suite.scala:1255)
at org.scalatest.Suite.runNestedSuites$(Suite.scala:1189)
at org.scalatest.tools.DiscoverySuite.runNestedSuites(DiscoverySuite.scala:30)
at org.scalatest.Suite.run(Suite.scala:1144)
at org.scalatest.Suite.run$(Suite.scala:1129)
at org.scalatest.tools.DiscoverySuite.run(DiscoverySuite.scala:30)
at org.scalatest.tools.SuiteRunner.run(SuiteRunner.scala:45)
at org.scalatest.tools.Runner$.$anonfun$doRunRunRunDaDoRunRun$13(Runner.scala:1340)
at org.scalatest.tools.Runner$.$anonfun$doRunRunRunDaDoRunRun$13$adapted(Runner.scala:1334)
at scala.collection.immutable.List.foreach(List.scala:392)
at org.scalatest.tools.Runner$.doRunRunRunDaDoRunRun(Runner.scala:1334)
at org.scalatest.tools.Runner$.$anonfun$runOptionallyWithPassFailReporter$24(Runner.scala:1031)
at org.scalatest.tools.Runner$.$anonfun$runOptionallyWithPassFailReporter$24$adapted(Runner.scala:1010)
at org.scalatest.tools.Runner$.withClassLoaderAndDispatchReporter(Runner.scala:1500)
at org.scalatest.tools.Runner$.runOptionallyWithPassFailReporter(Runner.scala:1010)
at org.scalatest.tools.Runner$.main(Runner.scala:827)
at org.scalatest.tools.Runner.main(Runner.scala)