About the generated Sqoop JAR file 

After running the dse sqoop import command, a Java class named npa_nxx.java appears in the DSE installation bin directory.

After running the dse sqoop import command, a Java class named npa_nxx.java appears in the DSE installation bin directory. This file can encapsulate one row of the imported data. You can specify the name of this JAR file, the output directory, and the class package using Sqoop command line options. See Sqoop documentation.