[jira] (MNG-5341) Dependency plugin may treat transitive dependencies as direct dependencies

["Tom Boettcher (JIRA)" <ji...@codehaus.org>]

Tom Boettcher created MNG-5341:
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             Summary: Dependency plugin may treat transitive dependencies as direct dependencies
                 Key: MNG-5341
                 URL: https://jira.codehaus.org/browse/MNG-5341
             Project: Maven 2 & 3
          Issue Type: Bug
          Components: Dependencies
    Affects Versions: 3.0.4
            Reporter: Tom Boettcher


[Git repo|https://github.com/tboettch/maven-test] containing sample projects illustrating the bug.

When two artifacts sharing an artifact ID but with different classifiers are both dependencies of a project, one of them being a direct dependency will cause the other to also be treated as a direct dependency, even if it is transitive.

>From the repository linked above:
{quote}
Project Relationships:
* projectA produces two artifacts with different classifiers: projectA and projectA-someclassifier.
* projectB depends directly on projectA-someclassifier (and also junit, for illustration purposes).
* projectC depends directly on projectB and projectA (note the lack of classifier) and transitively on projectA-someclassifier and junit.

To see the bug, install projectA and projectB to your local repository, then run the following commands on projectC:

* {{mvn dependency:resolve}}
* {{mvn dependency:resolve -DexcludeTransitive=true}}

In the latter case, projectA-someclassifier should be excluded from the list, but it is actually included. Note that the "ordinary" transitive dependency of junit is excluded, as expected. Furthermore, try running those same commands again after removing projectA from projectC's dependencies: with the second command, projectA and projectA-someclassifier both disappear from the list, even though only the direct dependency was changed!
{quote}

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