diff --git a/sql/core/src/main/scala/org/apache/spark/sql/execution/joins/HashedRelation.scala b/sql/core/src/main/scala/org/apache/spark/sql/execution/joins/HashedRelation.scala index 076afe6e4e960..bb333b4d5ed18 100644 --- a/sql/core/src/main/scala/org/apache/spark/sql/execution/joins/HashedRelation.scala +++ b/sql/core/src/main/scala/org/apache/spark/sql/execution/joins/HashedRelation.scala @@ -66,7 +66,8 @@ private[joins] final class GeneralHashedRelation( private var hashTable: JavaHashMap[InternalRow, CompactBuffer[InternalRow]]) extends HashedRelation with Externalizable { - private def this() = this(null) // Needed for serialization + // Needed for serialization (it is public to make Java serialization work) + def this() = this(null) override def get(key: InternalRow): Seq[InternalRow] = hashTable.get(key) @@ -88,7 +89,8 @@ private[joins] final class UniqueKeyHashedRelation(private var hashTable: JavaHashMap[InternalRow, InternalRow]) extends HashedRelation with Externalizable { - private def this() = this(null) // Needed for serialization + // Needed for serialization (it is public to make Java serialization work) + def this() = this(null) override def get(key: InternalRow): Seq[InternalRow] = { val v = hashTable.get(key)