Proposal: #ModuleNameCharacters (revised)

[mark.reinhold at oracle.com]

2016/12/13 0:12:42 -0800, Rémi Forax <forax at univ-mlv.fr>:
> I think part of the problem is that currently the builder enforces some
> rules and it should not, the fact that a ModuleDescriptor is well
> formed or not should be checked by the configuration and not by the
> builder itself.
> 
> ...
> 
> Actions:
> - the builder should only build a descriptor and not check if it is
> well formed or not
> - when resolving the configuration, additional checks should be done to
> verify that a module descriptor is well formed
> - add a way to specify additional metadata to the module descriptor.

These changes would make the `ModuleDescriptor.Builder` API much less
usable for the vast majority of developers in order to make life a
little easier for the very, very few developers who need to violate
the constraints that it imposes.

I think that's the wrong tradeoff, so I'm not going to make these
changes.

- Mark