Need examples of using Plain Old Jars with Jigsaw

[wjam]

Need examples of using JARs when you're inside a module and possibly vice versa.

[blalasaadri]

I've created a pull request for using (unmodulerized) JARs inside modules: #50

[neomatrix369]

@wjam is this issue fulfilled with #50? Anything more needed for this issue to stay open?