How many modules per jar?

[Remi Forax]

Hi vitaliy,

----- Mail original -----
> De: "Pisarev, Vitaliy" <vitaliy.pisarev at hpe.com>
> À: jigsaw-dev at openjdk.java.net
> Envoyé: Dimanche 27 Novembre 2016 19:28:51
> Objet: How many modules per jar?

> I am not sure I hit the right mailing list, kindly redirect me if needed.
> 
> I am preparing a lecture for my team about the new module system and wondering
> whether there is already a set of best practices around this.
> 
> For example: should we host each module in a separate jar or should a jar
> contain more than one module if the list is cohesive enough?

Currently, you can not have several modules in a one jar, #MultiModuleJARs [1] is no resolved.
So one modular jar (a jar with a module-info.class at its root) => one module.

Programmatically, you can create your own Layer, and defines a ModuleFinder that will load all the modules from one jar,
but the default implementation do not provide an implementation like that.

> 
> Thanks,
> Vitaliy.

cheers,
Rémi

[1] http://openjdk.java.net/projects/jigsaw/spec/issues/#MultiModuleJARs