[ 
https://issues.apache.org/jira/browse/SPARK-19666?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15875674#comment-15875674
 ] 

Takeshi Yamamuro commented on SPARK-19666:
------------------------------------------

Thanks!

> Exception when calling createDataFrame with typed RDD
> -----------------------------------------------------
>
>                 Key: SPARK-19666
>                 URL: https://issues.apache.org/jira/browse/SPARK-19666
>             Project: Spark
>          Issue Type: Bug
>          Components: SQL
>    Affects Versions: 2.1.0
>            Reporter: Colin Breame
>
> The following code:
> {code}
>     var tmp = sc.parallelize(Seq(new __Message()))
>     val spark = SparkSession.builder().getOrCreate()
>     var df = spark.createDataFrame(tmp, classOf[__Message])
> {code}
> Produces this error message.
> {code}
> Exception in thread "main" java.lang.NullPointerException
>       at org.spark_project.guava.reflect.TypeToken.method(TypeToken.java:465)
>       at 
> org.apache.spark.sql.catalyst.JavaTypeInference$$anonfun$2.apply(JavaTypeInference.scala:126)
>       at 
> org.apache.spark.sql.catalyst.JavaTypeInference$$anonfun$2.apply(JavaTypeInference.scala:125)
>       at 
> scala.collection.TraversableLike$$anonfun$map$1.apply(TraversableLike.scala:234)
>       at 
> scala.collection.TraversableLike$$anonfun$map$1.apply(TraversableLike.scala:234)
>       at 
> scala.collection.IndexedSeqOptimized$class.foreach(IndexedSeqOptimized.scala:33)
>       at scala.collection.mutable.ArrayOps$ofRef.foreach(ArrayOps.scala:186)
>       at scala.collection.TraversableLike$class.map(TraversableLike.scala:234)
>       at scala.collection.mutable.ArrayOps$ofRef.map(ArrayOps.scala:186)
>       at 
> org.apache.spark.sql.catalyst.JavaTypeInference$.org$apache$spark$sql$catalyst$JavaTypeInference$$inferDataType(JavaTypeInference.scala:125)
>       at 
> org.apache.spark.sql.catalyst.JavaTypeInference$$anonfun$2.apply(JavaTypeInference.scala:127)
>       at 
> org.apache.spark.sql.catalyst.JavaTypeInference$$anonfun$2.apply(JavaTypeInference.scala:125)
>       at 
> scala.collection.TraversableLike$$anonfun$map$1.apply(TraversableLike.scala:234)
>       at 
> scala.collection.TraversableLike$$anonfun$map$1.apply(TraversableLike.scala:234)
>       at 
> scala.collection.IndexedSeqOptimized$class.foreach(IndexedSeqOptimized.scala:33)
>       at scala.collection.mutable.ArrayOps$ofRef.foreach(ArrayOps.scala:186)
>       at scala.collection.TraversableLike$class.map(TraversableLike.scala:234)
>       at scala.collection.mutable.ArrayOps$ofRef.map(ArrayOps.scala:186)
>       at 
> org.apache.spark.sql.catalyst.JavaTypeInference$.org$apache$spark$sql$catalyst$JavaTypeInference$$inferDataType(JavaTypeInference.scala:125)
>       at 
> org.apache.spark.sql.catalyst.JavaTypeInference$$anonfun$2.apply(JavaTypeInference.scala:127)
>       at 
> org.apache.spark.sql.catalyst.JavaTypeInference$$anonfun$2.apply(JavaTypeInference.scala:125)
>       at 
> scala.collection.TraversableLike$$anonfun$map$1.apply(TraversableLike.scala:234)
>       at 
> scala.collection.TraversableLike$$anonfun$map$1.apply(TraversableLike.scala:234)
>       at 
> scala.collection.IndexedSeqOptimized$class.foreach(IndexedSeqOptimized.scala:33)
>       at scala.collection.mutable.ArrayOps$ofRef.foreach(ArrayOps.scala:186)
>       at scala.collection.TraversableLike$class.map(TraversableLike.scala:234)
>       at scala.collection.mutable.ArrayOps$ofRef.map(ArrayOps.scala:186)
>       at 
> org.apache.spark.sql.catalyst.JavaTypeInference$.org$apache$spark$sql$catalyst$JavaTypeInference$$inferDataType(JavaTypeInference.scala:125)
>       at 
> org.apache.spark.sql.catalyst.JavaTypeInference$$anonfun$2.apply(JavaTypeInference.scala:127)
>       at 
> org.apache.spark.sql.catalyst.JavaTypeInference$$anonfun$2.apply(JavaTypeInference.scala:125)
>       at 
> scala.collection.TraversableLike$$anonfun$map$1.apply(TraversableLike.scala:234)
>       at 
> scala.collection.TraversableLike$$anonfun$map$1.apply(TraversableLike.scala:234)
>       at 
> scala.collection.IndexedSeqOptimized$class.foreach(IndexedSeqOptimized.scala:33)
>       at scala.collection.mutable.ArrayOps$ofRef.foreach(ArrayOps.scala:186)
>       at scala.collection.TraversableLike$class.map(TraversableLike.scala:234)
>       at scala.collection.mutable.ArrayOps$ofRef.map(ArrayOps.scala:186)
>       at 
> org.apache.spark.sql.catalyst.JavaTypeInference$.org$apache$spark$sql$catalyst$JavaTypeInference$$inferDataType(JavaTypeInference.scala:125)
>       at 
> org.apache.spark.sql.catalyst.JavaTypeInference$$anonfun$2.apply(JavaTypeInference.scala:127)
>       at 
> org.apache.spark.sql.catalyst.JavaTypeInference$$anonfun$2.apply(JavaTypeInference.scala:125)
>       at 
> scala.collection.TraversableLike$$anonfun$map$1.apply(TraversableLike.scala:234)
>       at 
> scala.collection.TraversableLike$$anonfun$map$1.apply(TraversableLike.scala:234)
>       at 
> scala.collection.IndexedSeqOptimized$class.foreach(IndexedSeqOptimized.scala:33)
>       at scala.collection.mutable.ArrayOps$ofRef.foreach(ArrayOps.scala:186)
>       at scala.collection.TraversableLike$class.map(TraversableLike.scala:234)
>       at scala.collection.mutable.ArrayOps$ofRef.map(ArrayOps.scala:186)
>       at 
> org.apache.spark.sql.catalyst.JavaTypeInference$.org$apache$spark$sql$catalyst$JavaTypeInference$$inferDataType(JavaTypeInference.scala:125)
>       at 
> org.apache.spark.sql.catalyst.JavaTypeInference$.inferDataType(JavaTypeInference.scala:55)
>       at org.apache.spark.sql.SparkSession.getSchema(SparkSession.scala:708)
>       at 
> org.apache.spark.sql.SparkSession.createDataFrame(SparkSession.scala:347)
>       at uk.co.gresearch.aggregator.Main$.main(Main.scala:46)
>       at uk.co.gresearch.aggregator.Main.main(Main.scala)
> {code}



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