RefObject and ValObject

[Doug Lea]

On 4/15/19 11:23 AM, Brian Goetz wrote:
> Then we have:
> 
>     abstract class Object { }
>     abstract class RefObject <: Object { }
>     abstract class ValObject <: Object { }
> 

I also think it is plausible. As one part of migration story, maybe the
public no-arg constructor could be explicitly listed as @Deprecated,
adding a non-deprecated "protected" one.

-Doug