Hi all,
There are still several version anomalies in the final assembly so here is what I am currently doing in order to resolve
the dependencies:
mvn dependency:tree -Dverbose
This provides a nice dep tree to analyse issues - It's also a good way to work out excludes. There are still a lot of
missing excludes. If a library depends on other libraries it is better to write the excludes, and then explicitly
declare includes with the required versions. This prevents any externally resolved dependency changes 'quietly'
affecting the stability of the build. All versioned dependencies should be pushed up the parent pom tree as high as
possible into dependency management. A top level pom defines the actual 'version', with child poms defining usages and
scopes (a child pom should not declare a version except when the dependency is atomic across the multi-module project).
Note: The examples are all standalone projects, and define their own dependencies and versions - There should still be
an effort to keep dependency versions the same across the board.
mvn dependency:copy-dependencies -DoutputDirectory="D:\Temp\deps"
This copies absolutely all dependencies to the specified location, which makes it easy to see what is duplicated (There
is a list option if you don't want to write files). There are still several duplicates and version mismatches in the
current tree which need to be eliminated. With this list it is quite easy to search for and work out which poms are the
culprits. Running the goal without the 'outputDirectory' creates a /target/dependency in every project, which makes
finding jar locations easy.
dependency:analyze-dep-mgt
This shows up dependency management issues, of which there are also currently
quite a few.
All these commands really need to be run from bottom up and top down in every project directory to iron out all
conflicts - Quite a lot of work, but will be worth it in the end to get a really clean build.
Any suggestions and or help will be appreciated. I hope to get most of this
done be the end of the coming weekend.
Andy.
