Loose-ends wrapup

[Brian Goetz]

>> Many slippery-slope questions come to mind -- doesn't this beg for:
>>   - Bag interface
>
> YAGNI. "Bag" just means "not a Set or List or other Collection
> subinterface"

Maybe.  A multiset typically implements a method like:

   int count(Object)

> unmodifiableCollection would work fine.

except then, even if CHB implemented a count(o) method, it becomes 
hidden by the wrapper.

So, are you saying that count(Object) is a YAGNI issue too?