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[SPARK-13390][SQL][branch-1.6]Fix the issue that Iterator.map().toSeq is not Serializable #11334

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[SPARK-13390][SQL][branch-1.6]Fix the issue that Iterator.map().toSeq is not Serializable #11334

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2 changes: 1 addition & 1 deletion sql/core/src/main/scala/org/apache/spark/sql/SQLContext.scala
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Original file line number Diff line number Diff line change
Expand Up @@ -604,7 +604,7 @@ class SQLContext private[sql](
val className = beanClass.getName
val beanInfo = Introspector.getBeanInfo(beanClass)
val rows = SQLContext.beansToRows(data.asScala.iterator, beanInfo, attrSeq)
DataFrame(self, LocalRelation(attrSeq, rows.toSeq))
DataFrame(self, LocalRelation(attrSeq, rows.toArray))
}


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17 changes: 17 additions & 0 deletions sql/core/src/test/scala/org/apache/spark/sql/SQLContextSuite.scala
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Expand Up @@ -65,4 +65,21 @@ class SQLContextSuite extends SparkFunSuite with SharedSparkContext{
session2.sql("select myadd(1, 2)").explain()
}
}

test("SPARK-13390: createDataFrame(java.util.List[_],Class[_]) NotSerializableException") {
val rows = new java.util.ArrayList[IntJavaBean]()
rows.add(new IntJavaBean(1))
val sqlContext = SQLContext.getOrCreate(sc)
// Without the fix for SPARK-13390, this will throw NotSerializableException
sqlContext.createDataFrame(rows, classOf[IntJavaBean]).groupBy("int").count().collect()
}
}

class IntJavaBean(private var i: Int) extends Serializable {

def getInt(): Int = i

def setInt(i: Int): Unit = {
this.i = i
}
}