On 25.04.2017 16:38, David M. Lloyd wrote:
[...]
I think that Maven- and Gradle-based tooling will appear to fill this
need. The only correct solution (automatic modules or not) to
modularizing arbitrary groups of artifacts will likely involve a
separate assembly step which will inevitably include writing or
rewriting module descriptors. I expect that the tooling will use the
artifact dependency graph, module descriptors and/or other metadata
present on the artifacts, and some manual configuration as input, and
then produce as output a collection of corrected/re-written module JARs
(and probably a complete wiring report that can be checked over by human
eyes, probably with admonitions relating to potential or definite
problems).
Did you ever think what that means for build times?
If the build tools have to become so powerful to handle all the module
aspects that the can do dependencies and all that, I really expect them
to change over to java compilation without the module aspect and at it
later on when creating a module jar only
I really don't see any other way things could possibly work consistently
for any application which uses external JARs. Automatic modules are
just going to be a stumbling block to reaching this conclusion.
And let´s not forget about those applications that won´t work as named
module... after all your read - ability is quite different then.
And another thought... if I make a library, that depends on an automatic
module... for me that would mean in consequence to employ package
rewriting and make a fat jar. Otherwise... how can I every know anything
about the version of the dependency
OSGi, by the way, avoids this situation somewhat more effectively than
Jigsaw can, mainly because of three factors: resolving by package
instead of by bundle name, performing the bulk of resolution work at run
time, and by the simple fact that it is less invasive towards
reflection, thus there is more "wiggle room".
This isn't to say that OSGi is an ideal solution of course, but I just
wanted to point out why the OSGi ecosystem can generally get away with
publishing artifacts containing descriptor information, while Jigsaw
probably won't be able to (or at least, not as cleanly).
agreed
bye Jochen
