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java.lang.OutOfMemoryError: Java heap space	at java.nio.HeapCharBuffer.(HeapCharBuffer.java:57)	at java.nio.CharBuffer.allocate(CharBuffer.java:335)	at java.nio.charset.CharsetDecoder.decode(CharsetDecoder.java:810)	at org.apache.hadoop.io.Text.decode(Text.java:412)	at org.apache.hadoop.io.Text.decode(Text.java:389)	at org.apache.hadoop.io.Text.toString(Text.java:280)	at org.apache.spark.sql.execution.datasources.json.JSONRelation$$anonfun$org$apache$spark$sql$execution$datasources$json$JSONRelation$$createBaseRdd$1.apply(JSONRelation.scala:105)	at org.apache.spark.sql.execution.datasources.json.JSONRelation$$anonfun$org$apache$spark$sql$execution$datasources$json$JSONRelation$$createBaseRdd$1.apply(JSONRelation.scala:105)	at scala.collection.Iterator$$anon$11.next(Iterator.scala:328)	at scala.collection.Iterator$$anon$11.next(Iterator.scala:328)	at scala.collection.Iterator$class.foreach(Iterator.scala:727)	at scala.collection.AbstractIterator.foreach(Iterator.scala:1157)	at scala.collection.TraversableOnce$class.foldLeft(TraversableOnce.scala:144)	at scala.collection.AbstractIterator.foldLeft(Iterator.scala:1157)	at scala.collection.TraversableOnce$class.aggregate(TraversableOnce.scala:201)	at scala.collection.AbstractIterator.aggregate(Iterator.scala:1157)	at org.apache.spark.rdd.RDD$$anonfun$treeAggregate$1$$anonfun$23.apply(RDD.scala:1135)	at org.apache.spark.rdd.RDD$$anonfun$treeAggregate$1$$anonfun$23.apply(RDD.scala:1135)	at org.apache.spark.rdd.RDD$$anonfun$treeAggregate$1$$anonfun$24.apply(RDD.scala:1136)	at org.apache.spark.rdd.RDD$$anonfun$treeAggregate$1$$anonfun$24.apply(RDD.scala:1136)	at org.apache.spark.rdd.RDD$$anonfun$mapPartitions$1$$anonfun$apply$20.apply(RDD.scala:710)	at org.apache.spark.rdd.RDD$$anonfun$mapPartitions$1$$anonfun$apply$20.apply(RDD.scala:710)	at org.apache.spark.rdd.MapPartitionsRDD.compute(MapPartitionsRDD.scala:38)	at org.apache.spark.rdd.RDD.computeOrReadCheckpoint(RDD.scala:306)	at org.apache.spark.rdd.RDD.iterator(RDD.scala:270)	at org.apache.spark.scheduler.ResultTask.runTask(ResultTask.scala:66)	at org.apache.spark.scheduler.Task.run(Task.scala:89)	at org.apache.spark.executor.Executor$TaskRunner.run(Executor.scala:227)	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)