java.lang.NullPointerException: This exception has no message.

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at com.marklogic.contentpump.MultithreadedMapper$SubMapRecordReader.nextKeyValue(
at org.apache.hadoop.mapreduce.task.MapContextImpl.nextKeyValue(
at com.marklogic.contentpump.BaseMapper.runThreadSafe(
at com.marklogic.contentpump.MultithreadedMapper$
at java.util.concurrent.Executors$
at java.util.concurrent.ThreadPoolExecutor.runWorker(
at java.util.concurrent.ThreadPoolExecutor$

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