HollowList iterator calls size() on every hasNext

[DanielThomas]

HollowList doesn't implement it's own iterator, instead delegating to java.util.AbstractList.Itr and java.util.AbstractList.ListItr. However Itr calls size() on every call to hasNext():

        public boolean hasNext() {
            return cursor != size();
        }

That said, size is also required for checking if a collection is empty, and is called forlast() in Kotlin so maybe keeping size after first access for the list delegate is a better approach?

[somayaj]

Can this be worked?