I am unable to add an element to a list? UnsupportedOperationException

Question

This one list object is biting me in the butt..

Any time I try to add an element to it, it produces this:

Caused by: java.lang.UnsupportedOperationEx         


        

Answer 1

The java docs say asList @SafeVarargs public static List asList(T... a) "Returns a fixed-size list backed by the specified array"

Your list is fixed size, meaning it cannot grow or shrink and so when you call add, it throws an unsupported operation exception