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NullPointerException when uploading a file .xlsx

User_BMQ12
User_BMQ12 Member Posts: 30 Green Ribbon
edited Jan 18, 2023 8:17AM in Java Programming

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

:

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