Layer questions

[Paul Benedict]

Dear Jigsaw Experts,

I have a few questions on layers:

1) True of False: Except for the Boot Layer, every Layer must have a parent
Layer?

2) Is there any API to enumerate the Layer instances in the JVM?

3) Since Layer instances may commonly represent a miniature system design
(think topological), it would seem good to introduce a name for them, no?
The name would be purely informational like the proposed new name on the
ClassLoader. And if #2 was available, it would be even more useful in
debugging the internals of the runtime environment.

Cheers,
Paul