https://hbase.apache.org/2.3/testdevapidocs/org/apache/hadoop/hbase/mapreduce/NMapInputFormat.NullInputSplit.html
NMapInputFormat.NullInputSplit (Apache HBase 2.3.0 Test API)
apache hbasetestapi
https://hbase.apache.org/2.3/testdevapidocs/org/apache/hadoop/hbase/mapreduce/NMapInputFormat.html
NMapInputFormat (Apache HBase 2.3.0 Test API)
apache hbasetestapi