Hi Mark,
On 18/09/17 17:11, Mark Raynsford wrote:
Hello.
With Java 9 due out in a few days time, I'm looking at moving all of my
60+ projects to Java 9. I have no intention of keeping support for any
version of Java less than 9, so the projects will become pure Java 9
(modularized) projects.
I'm curious as whether Java 9 changes any of the conventions that I've
been used to in Maven for the past five or so years. For example, one
thing I see frequently in Java 9 tutorials is that they use a
directory layout that differs from the Maven standard. For example,
consider this tutorial:
https://dzone.com/articles/java-9-tutorial-step-by-step-from-zero-to-modules
The directory layout is "src/com.me.mymodule/module-info.java". This
obviously doesn't match the "src/main/java" convention that Maven uses.
That is the same which comes to my mind if I see such examples...
But I don't see any requirement for that nor do I see any advantage
about this approache?...
What I've seen in OSGi is to name the directories according to the
modules (bundle names) but this often leads into duplication
like:
root
+-- com.company.project.x1
+-- com.company.project.x2
+-- com.company.project.x3..
which form my point view could be reduced to:
root
+-- x1
+-- x2
+-- x3
I've made several tests like this
https://github.com/khmarbaise/jdk9-jlink-jmod-example/tree/master/maven-example
where I'm working on JMod / JLink parts...
I think the best suggestion I can give is to keep the conventions
...cause from my current point of view you don't have disadvantages...
But we would be very interested if there are some if you make
experiences in that way...
Is the intention to map Maven modules 1:1 with Jigsaw modules? Or if
not 1:1, then perhaps "no more than one Jigsaw module per Maven module".
I think one Jigsaw module per Maven module otherwise you need to leave
the conventions based on module-info.java....etc...
Is there documentation available anywhere that describes how new pure
Java 9 (multi-module!) projects should be set up?
I think it's time to make some docs based on the current state of
experience and if you like please add information or begin with such
docs about that..we would appreciate such things...
Kind regards
Karl Heinz Marbaise
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