What's the difference between blackdown & sun (was Re: Java Debugging Services in Sun's Distro of the Blackdown port...)

[Eric Raymond]

Adam Ambrose wrote:
> 
> The release by Sun/Inprise (based on Blackdown, of course) has support
> for JPDA, which Inprise needed for JBuilder.

What's the difference between the Blackdown port and the Sun/Inprise
port.  Did they just take the blackdown port and re-release it?  (The
Sun readme file is a blackdown readme).

This is a little bit off the intended purpose of the list but I'm sure
this is of interest to many of us....  Please flame directly to me if
this is innapropriate.