"Scanning" module contents

[Cédric Champeau]

Hi guys!

Sorry if it is a dumb question but finding information about Jigsaw is 
not easy :) I was leveraging this end of year to adapt the Groovy 
language build for JDK 9. The good news is that we seem to have very 
little issues with Jigsaw. One of them is in a tool called "groovysh" 
which is a REPL providing completion, like an IDE would. For example, if 
you start typing jav<TAB> it would start completing the package name. So 
far, the list of suggestions was based on elements on classpath, and 
classes from the JDK were found thanks to scanning JAR files.

The problem is that we now have a new (unsupported) URLConnection type, 
which is JavaRuntimeURLConnection. I can see it can give me a module 
name, but I have absolutely no idea what to do with that. For a JAR it 
was easy because we could scan the entries, but now... Do you have any 
pointer for code I could look at? It is made a bit harder by the fact 
that even my IDE doesn't support JDK 9 so I cannot have completion or 
whatever tools I used to work with when dealing with new APIs ;)

Once this will be fixed, Groovy will officially support building/running 
on JDK 9, which would be a nice New Year present :)

Thanks!

-- 
Cédric Champeau
Groovy language developer
http://twitter.com/CedricChampeau
http://melix.github.io/blog