Hello everybody! Such a problem, I follow the instructions from
http://www.awasthiashish.com/2017/01/import-data-from-xls-and-xlsx-excel-to.html
On the line throws NullPointerException
CollectionModel cModel = (CollectionModel) empTable.getValue();
I don't understand what to do, please help me!
error log:
jsff file:
bean class
: