Combining --add-modules ALL-MODULE-PATH with --module-source-path

[Nicolai Parlog]

 Hi!

I have been experimenting with the the module source path and
multi-module compilation and must say that it is really cool. I like how
it operates on a higher level of abstraction.

With a small application where the initial module transitively requires
all others this is very nice:

javac
	--module-path mods
	--module-source-path "./*/src/main/java"
	-d classes
	-module initial.module

As soon as services show up, this does not work as smoothly anymore
because the initial module does not depend on the service providers so
they do not get compiled. That was expected.

But to my surprise, using --add-modules ALL-MODULE-PATH does not change
that. The following command has exactly the same result as above
regarding service providing modules that the initial module does not
transitively depend on:

javac
	--module-path mods
	--module-source-path "./*/src/main/java"
	--add-modules ALL-MODULE-PATH
	-d classes
	-module initial.module

Assuming I made no mistake, I find this a little odd. Is there a reason
behind this that I don't see or is it an unimplemented feature? If the
latter, I think it would be really nice to have it implemented in the
interest of fidelity across phases. Launching the same application would
look like this:

java
	--module-path mods
	--add-modules ALL-MODULE-PATH
	-module initial.module

And isn't that eerily similar. :)

 so long ... Nicolai



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