I am also running Hibernate Core 4.2.22.

ScrollableResults sc;
...

Under the covers, it does call transformTuple(Object[] columnValue, String[] columnNames), but the length of columnNames is 0.
columnValue.length = 13

but

columnNames.length = 0

I am trying to associate column names with values. But since there are column names being sent to transformTuple, I create a null row.