[ https://issues.apache.org/jira/browse/SPARK-21473?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Sean Owen updated SPARK-21473: ------------------------------ Priority: Minor (was: Major) Issue Type: Improvement (was: Bug) > Running Transform on a bean which has only setters gives NullPointerExcpetion > ----------------------------------------------------------------------------- > > Key: SPARK-21473 > URL: https://issues.apache.org/jira/browse/SPARK-21473 > Project: Spark > Issue Type: Improvement > Components: Spark Core > Affects Versions: 2.1.0 > Reporter: Aseem Bansal > Priority: Minor > > If I run the following using the Java API > {code:java} > dataset.map(Transformer::transform, > Encoders.bean(BeanWithOnlySettersAndNoGetters.class)); > {code} > Then I get the below exception. I understand that it is not bean-compliant > without the getters but the exception is wrong. Perhaps fixing the exception > message would be a solution? > {noformat} > Caused by: 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$.inferDataType(JavaTypeInference.scala:55) > at > org.apache.spark.sql.catalyst.encoders.ExpressionEncoder$.javaBean(ExpressionEncoder.scala:89) > at org.apache.spark.sql.Encoders$.bean(Encoders.scala:142) > at org.apache.spark.sql.Encoders.bean(Encoders.scala) > {noformat} -- This message was sent by Atlassian JIRA (v6.4.14#64029) --------------------------------------------------------------------- To unsubscribe, e-mail: issues-unsubscr...@spark.apache.org For additional commands, e-mail: issues-h...@spark.apache.org