John.Maloney at disney.com wrote:
> 
> At 1:10 PM -0500 4/28/99, Dwight Hughes wrote:
> >Just off the top of my head, I would think that the lack of runtime type
> >info for Java's primitive types would make applying such dynamic
> >optimization in any general fashion a rather daunting task in practice.
> 
> This isn't a problem, since the type info for built-in types
> is known at compile time, and can be retained for use by the
> run-time dynamic optimization system.
> 
>         -- John

Patrick Logan pointed out to me that the class object defines which fields
of an instance have primitive types and what that type is.

-- Dwight