ahshahid commented on code in PR #48252:
URL: https://github.com/apache/spark/pull/48252#discussion_r1844723692
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sql/core/src/test/scala/org/apache/spark/sql/DatasetSuite.scala:
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@@ -2909,6 +3016,7 @@ object KryoData {
/** Used to test Java encoder. */
class JavaData(val a: Int) extends Serializable {
+ def this() = this(0)
Review Comment:
Any class which is Serializable, for serializer to work correctly, needs to
have a default empty argument constructor.
Otherwise there will be runtime exception.
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