Why do I get an UnsupportedOperationException when trying to remove an element from a List?

Question

I have this code:

public static String SelectRandomFromTemplate(String template,int count) {
   String[] split = template.split(\"|\");
   List         


        

Answer 1

Probably because you're working with unmodifiable wrapper.

Change this line:

List list = Arrays.asList(split);

to this line:

List list = new LinkedList<>(Arrays.asList(split));