I have a project in which the maven-enforcer rule fails with a multi-module build using non-unique snapshots (which are annoyingly the only kind of snapshot supported in Maven 3).
For example, assume -> is a "depends on" relationship, and:
- Module-A -> Module-B -> Module-C
- Module-A -> Module-C
and that Module B and Module C are present in the snapshot repository as unique builds. All declared Module versions in the POM are currently 1.0-SNAPSHOT.
Now, building Module A fails:
mvn -pl Module-A install
results in:
[INFO] --- maven-enforcer-plugin:1.0.1:enforce (enforce) @ Module-A ---
[ERROR]
Dependency convergence error for com.vivosys.project:Module-C:1.0-SNAPSHOT paths to dependency are:
+-com.vivosys.project:Module-A:1.0-SNAPSHOT
+-com.vivosys.project:Module-B:1.0-20111228.032527-8
+-com.vivosys.project:Module-C:1.0-SNAPSHOT
and
+-com.vivosys.project:Module-A:1.0-SNAPSHOT
+-com.vivosys.project:Module-C:1.0-20111228.032527-6
The transitive dependency is resolved as a non-unique snapshot build, but the direct dependency is resolved as a unique snapshot build.
I am using maven 3.0.3, maven-enforcer 1.0.1. The repository is Artifactory 2.4.2 using the unique snapshots option (as recommended by Artifactory since Maven 3 no longer supports non-unique snapshots).
Solutions?
Update: Looks like artifactory allows overriding the maven client behavior and storing the non-unique snapshot in the repository. However, for some reason Artifactory does not recommend this (see the "Maven 3" blurb at http://wiki.jfrog.org/confluence/display/RTF/Local+Repositories) so other solutions are still welcome.
