On Sun, 21 Jan 2007 14:52:20 +0100, Ralph Johnson wrote:

> Collection is an abstract class, so you should never say "Collection  
> new".

Well. People are coming from platforms on which abstract classes cannot be  
instantiated.

I won't want to convince anybody but the first experience of a potential  
convert should not be the debugger balking at completely unrelated things  
(here: a subclass should have implemented #do: which the outermost  
abstract class apparently requires from itself). That's just a  
contradiction.

Funny, (Object new) doesn't have such problems. So, would you say that  
about "Object new", too. I doubt, because almost every Smalltalk pro does  
so ;-)

Again, just my CHF 0.05 :)

/Klaus