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    • java.lang.Exception: java.lang.NullPointerException at org.apache.hadoop.mapred.LocalJobRunner$Job.run(LocalJobRunner.java:406) Caused by: java.lang.NullPointerException at org.apache.hadoop.mapred.MapTask$MapOutputBuffer.init(MapTask.java:843) at org.apache.hadoop.mapred.MapTask.createSortingCollector(MapTask.java:376) at org.apache.hadoop.mapred.MapTask.access$100(MapTask.java:85) at org.apache.hadoop.mapred.MapTask$NewOutputCollector.<init>(MapTask.java:584) at org.apache.hadoop.mapred.MapTask.runNewMapper(MapTask.java:656) at org.apache.hadoop.mapred.MapTask.run(MapTask.java:330) at org.apache.hadoop.mapred.LocalJobRunner$Job$MapTaskRunnable.run(LocalJobRunner.java:268) at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:471) at java.util.concurrent.FutureTask.run(FutureTask.java:262) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615) at java.lang.Thread.run(Thread.java:745)

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