The baby and the bathwater

[Stephen Colebourne]

On 28 March 2018 at 08:28, Peter Levart <peter.levart at gmail.com> wrote:
> That's easy to enforce in runtime. Just take a "victim" class from your
> library that is most often needed when your library is being used (or take a
> couple of them) and add a class initialization block like the following to
> them:
>
> public class Whatever {
>
>     static {
>         if (Whatever.class.getModule().getName() == null) {
>             throw new Error("Can only use this library as a module");
>         }
>     }

Agreed that this has always been possible, but it is code not
metadata. Really, it should be a startup JPMS error if the module
isn't running in the expected mode. That way tools like Maven and
Gradle can also take decisions based on the metadata.

Stephen