The error mesg shows ClassCastException. Few cents.. Explaining in a generic way , If there are version incompatible using other class files, please update the compatible version classes for all the using classes. Also look at the code and see where it really fails. Then you will know what class causes this exception. Since you also get incomptible with interface that means your logic type cast to a class that implements different interface. example you are trying to type cast string object for Integer.
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