New issue: Layers are strictly hierarchical
David M. Lloyd
david.lloyd at redhat.com
Thu Mar 3 00:07:06 UTC 2016
If there is any expectation of moving existing systems over to Jigsaw, I
think that the strict hierarchical layer system should be abandoned in
favor of a graph-oriented system. This allows containers to maintain
separate module graphs with separate namespaces which nevertheless
interconnect.
I believe that this is a necessary requirement if (in particular) there
is an expectation that Java EE 9 (or another Java EE specification)
would be reframed in terms of Jigsaw-style modules, since Java EE module
names have many fewer restrictions, and it is possible for (for example)
more than one application to contain modules of the same name.
If on the other hand there is an expectation that Java EE is not going
to be retrofitted in a way which maps EE applications and modules to
Jigsaw modules, then this should be clearly declared.
--
- DML
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