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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$$anonfun$fn$3$1.apply(JavaRDDLike.scala:142)	at org.apache.spark.api.java.JavaRDDLike$$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$5.apply(SparkContext.scala:1897)	at org.apache.spark.scheduler.ResultTask.runTask(ResultTask.scala:70)	at org.apache.spark.scheduler.Task.run(Task.scala:85)	at org.apache.spark.executor.Executor$TaskRunner.run(Executor.scala:274)	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)