> On Apr 22, 2020, at 4:48 PM, Alex Buckley <alex.buck...@oracle.com> wrote:
>
>>> 2a) If the superclass belongs to a different run-time module, error.
>
> As Remi says, by the time class loading happens, a layer has already been set
> up to map modules (and hence their packages) to loaders. JVMS 5.3.6 discusses
> this, including the possibility that a class is "in a run-time module".
Okay, so it would be valid to talk about "the run-time module of C" while C is
being derived?
I think this sentence from 5.3.6 anticipates this sort of early query, but I
might be misinterpreting the parenthetical:
"We say that a class is in a run-time module iff the class's run-time package
is associated (or will be associated, if the class is actually created) with
that run-time module."
I'm a little nervous about the idea that some associations haven't happened
yet. I'm not clear on the timing.