I\'m really stuck into trying to map my QueryString parameters into my Spring JavaBean Command object here, and I couldn\'t find an answer to my question so far.
You send columns[0] as parameter, but columns has no entry with the index 0. In fact it has no entry at all as it is null.
You have to instantiate the list in the constructor of DataTableCriterias in order to make this work. And it has to have enough entries for the parameters you send.