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java.lang.NullPointerException at com.marklogic.contentpump.MultithreadedMapper$SubMapRecordReader.nextKeyValue(MultithreadedMapper.java:285) at org.apache.hadoop.mapreduce.task.MapContextImpl.nextKeyValue(MapContextImpl.java:80) at org.apache.hadoop.mapreduce.lib.map.WrappedMapper$Context.nextKeyValue(WrappedMapper.java:91) at com.marklogic.contentpump.BaseMapper.runThreadSafe(BaseMapper.java:45) at com.marklogic.contentpump.MultithreadedMapper$MapRunner.run(MultithreadedMapper.java:376) at java.util.concurrent.Executors$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)