Java Checked Exceptions

[Paul Rubin]

"John Roth" <newsgroups at jhrothjr.com> writes:
> My take on the issue is that at the time Java was designed,
> the whole notion of checked exceptions was a hot topic in
> the academic and language design community, and so it got
> in before there was enough experience with using it in large
> programs to show that it simply didn't scale well.

But I thought Ada uses checked exceptions, and huge systems have been
built in Ada.  What's the deal?