I am sorry if I am asking a question the answer to which might be obious
to others, but for a long time I have wondered why I do not find any
examples for the following use case which IMO is probably quite common:
** I build an uber JAR containing some module dependencies, possibly
also transitive ones. This could be done using Maven Shade or Maven
Assembly, maybe even something with nested JARs like One-JAR.
** The built uber JAR replaces the module's original artifact when
installed and/or deployed.
** By default, the original POM gets attached to the build. This is
undesirable, because the uber JAR no longer depends on those
dependencies. They are only needed in the POM during the build as
such in order to be able to include them in the uber JAR at all.
My question: How do I automatically create and attach a
dependency-reduced POM to the build, replacing the original POM?
Ideally, I would have options to also filter out other POM elements such
as repositories, but that is optional and not the main scope of this
question.
Presently, I use Flatten Maven Plugin for this purpose. For certain
reasons, I am not very happy with it because it requires extra work, it
mutilates my POMs with regard to formatting and removing things I do not
wish to be removed, but it works.
I also know that Maven Shade automatically creates a dependency-reduced
POM if not told otherwise. But that POM is not attached to the build.
Maybe I could do so using Build Helper, but both Flatten Maven and Build
Helper seem like crutches, and I cannot help but wonder which built-in
Maven functionality escaped my attention so far. Is there a canonical
way to do that, such as resource filtering? Can I even apply that to
POMs? I feel like I might be doing something phenomenally stupid,
possibly missing a more straightforward way of solving this problem.
--
Alexander Kriegisch
https://scrum-master.de
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