Whenever the data from an excel file is read and I try to load items to Vaadin Grid, it throws “ClassCastException” caused by the attempt to cast objects of same data type. How can I solve this problem?
Whenever the data from an excel file is read and I try to load items to Vaadin Grid, it throws “ClassCastException” caused by the attempt to cast objects of same data type. How can I solve this problem?