Spark Accumulator Issue - java.io.IOException: java.lang.StackOverflowError

Hi, I am trying one transformation by calling scala method this scala method returns MutableList[AvroObject] def processRecords(id: String, list1: Iterable[(String, GenericRecord)]): scala.collection.mutable.MutableList[AvroObject]  Hence, the output of transaformation is

Spark Accumulator Issue - java.io.IOException: java.lang.StackOverflowError

Hi, I am trying one transformation by calling scala method this scala method returns MutableList[AvroObject] def processRecords(id: String, list1: Iterable[(String, GenericRecord)]): scala.collection.mutable.MutableList[AvroObject]  Hence, the output of transaformation is