Lukas Bradley created SPARK-21670:
-------------------------------------
Summary: Encoders.bean() throws UnsupportedOperationException if
Java Bean Class contains an enum
Key: SPARK-21670
URL: https://issues.apache.org/jira/browse/SPARK-21670
Project: Spark
Issue Type: Bug
Components: SQL
Affects Versions: 2.2.0, 2.1.0
Reporter: Lukas Bradley
Invoking the following:
Encoder encoder = Encoders.bean(EncoderExampleBean.class);
On the following class:
public class EncoderExampleBean {
String name;
EncoderExampleEnum example;
}
enum EncoderExampleEnum {
ONE, TWO, THREE
}
Throws the following exception:
java.lang.UnsupportedOperationException: Cannot have circular references in
bean class, but got the circular reference of class class java.lang.ClassLoader
at
org.apache.spark.sql.catalyst.JavaTypeInference$.org$apache$spark$sql$catalyst$JavaTypeInference$$inferDataType(JavaTypeInference.scala:123)
at
org.apache.spark.sql.catalyst.JavaTypeInference$$anonfun$1.apply(JavaTypeInference.scala:133)
at
org.apache.spark.sql.catalyst.JavaTypeInference$$anonfun$1.apply(JavaTypeInference.scala:131)
at
scala.collection.TraversableLike$$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:131)
at
org.apache.spark.sql.catalyst.JavaTypeInference$$anonfun$1.apply(JavaTypeInference.scala:133)
at
org.apache.spark.sql.catalyst.JavaTypeInference$$anonfun$1.apply(JavaTypeInference.scala:131)
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$$inferDataType(JavaTypeInference.scala:131)
at
org.apache.spark.sql.catalyst.JavaTypeInference$$anonfun$1.apply(JavaTypeInference.scala:133)
at
org.apache.spark.sql.catalyst.JavaTypeInference$$anonfun$1.apply(JavaTypeInference.scala:131)
at
scala.collection.TraversableLike$$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:131)
at
org.apache.spark.sql.catalyst.JavaTypeInference$$anonfun$1.apply(JavaTypeInference.scala:133)
at
org.apache.spark.sql.catalyst.JavaTypeInference$$anonfun$1.apply(JavaTypeInference.scala:131)
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:131)
at
org.apache.spark.sql.catalyst.JavaTypeInference$.inferDataType(JavaTypeInference.scala:55)
at
org.apache.spark.sql.catalyst.encoders.ExpressionEncoder$.javaBean(ExpressionEncoder.scala:86)
at org.apache.spark.sql.Encoders$.bean(Encoders.scala:142)
at org.apache.spark.sql.Encoders.bean(Encoders.scala)
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