org.apache.spark.scheduler.TaskSetManager: Lost task 0.0 in stage 0.0 (TID 0, test-cluster-w-1.c.test-project.internal): java.lang.AbstractMethodError: uk.co.test.CalculateScore$$Lambda$10/1666820030.call(Ljava/lang/Object;)Ljava/util/Iterator;

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Lost task 0.0 in stage 0.0 (TID 0, test-cluster-w-1.c.test-project.internal): java.lang.AbstractMethodError: uk.co.test.CalculateScore$$Lambda$10/1666820030.call(Ljava/lang/Object;)Ljava/util/Iterator;
org.apache.spark.scheduler.TaskSetManager: Lost task 0.0 in stage 0.0 (TID 0, test-cluster-w-1.c.test-project.internal): java.lang.AbstractMethodError: uk.co.test.CalculateScore$$Lambda$10/1666820030.call(Ljava/lang/Object;)Ljava/util/Iterator;
at org.apache.spark.api.java.JavaRDDLike$$anonfun$fn$3$1.apply(JavaRDDLike.scala:142)
at scala.collection.Iterator$$anon$12.nextCur(Iterator.scala:434)
at scala.collection.Iterator$$anon$12.hasNext(Iterator.scala:440)
at scala.collection.Iterator$class.foreach(Iterator.scala:893)
at scala.collection.AbstractIterator.foreach(Iterator.scala:1336)
at scala.collection.generic.Growable$class.$plus$plus$eq(Growable.scala:59)
at scala.collection.mutable.ArrayBuffer.$plus$plus$eq(ArrayBuffer.scala:104)
at scala.collection.mutable.ArrayBuffer.$plus$plus$eq(ArrayBuffer.scala:48)
at scala.collection.TraversableOnce$class.to(TraversableOnce.scala:310)
at scala.collection.AbstractIterator.to(Iterator.scala:1336)
at scala.collection.TraversableOnce$class.toBuffer(TraversableOnce.scala:302)
at scala.collection.AbstractIterator.toBuffer(Iterator.scala:1336)
at scala.collection.TraversableOnce$class.toArray(TraversableOnce.scala:289)
at scala.collection.AbstractIterator.toArray(Iterator.scala:1336)
at org.apache.spark.rdd.RDD$$anonfun$collect$1$$anonfun$13.apply(RDD.scala:893)
at org.apache.spark.rdd.RDD$$anonfun$collect$1$$anonfun$13.apply(RDD.scala:893)
at org.apache.spark.SparkContext$$anonfun$runJob$5.apply(SparkContext.scala:1897)
at org.apache.spark.SparkContext$$anonfun$runJob$5.apply(SparkContext.scala:1897)
at org.apache.spark.scheduler.ResultTask.runTask(ResultTask.scala:70)
at org.apache.spark.scheduler.Task.run(Task.scala:85)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
at java.lang.Thread.run(Thread.java:745)

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