Main.main() has thrown a ClassCastException

We found this prefix in 2 webpages.
MapChildren (2)Typical messages (1)TraceDetailed Map
  1. java.lang.ClassCastException
    1.   at com.test.ds.Main.main()
  1. how to compeer Arraylist contains hashtables by key name

    First:11 years ago
    Last:1 year ago
    Author:807606
  2. how to compeer Arraylist contains hashtables by key name

    First:11 years ago
    Last:2 years ago
    Author:Meir Yan
MessageNumber of crashes
com.test.ds.TupleList2
  1. java.lang.ClassCastException
    1.   at com.test.ds.Main.main()