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

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java.lang.NullPointerException:
at com.cloudera.sqoop.mapreduce.db.DataDrivenDBRecordReader.getSelectQuery(DataDrivenDBRecordReader.java:87)
at com.cloudera.sqoop.mapreduce.db.DBRecordReader.nextKeyValue(DBRecordReader.java:225)
at org.apache.hadoop.mapred.MapTask$NewTrackingRecordReader.nextKeyValue(MapTask.java:456)
at org.apache.hadoop.mapreduce.MapContext.nextKeyValue(MapContext.java:67)
at com.cloudera.sqoop.mapreduce.AutoProgressMapper.run(AutoProgressMapper.java:187)
at org.apache.hadoop.mapred.MapTask.runNewMapper(MapTask.java:647)
at org.apache.hadoop.mapred.MapTask.run(MapTask.java:323)
at java.security.AccessController.doPrivileged(Native Method)
at javax.security.auth.Subject.doAs(Subject.java:396)
at org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1127)

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