[jira] Created: (MDEP-243) dependency:resolve decides to take older (incompatible) version for transitive dep

[Paolo Compieta (JIRA)]

dependency:resolve decides to take older (incompatible) version for transitive 
dep
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                 Key: MDEP-243
                 URL: http://jira.codehaus.org/browse/MDEP-243
             Project: Maven 2.x Dependency Plugin
          Issue Type: Bug
          Components: resolve, tree
    Affects Versions: 2.1, 2.0
         Environment: WinXp
Maven 2.0.9/2.2.1
            Reporter: Paolo Compieta
            Assignee: Brian Fox
         Attachments: m2WrongTransitiveDepResolve.zip

I'll use modules Parent,ModuleA,ModuleB,ModuleEAR and dependency Commons-Net to 
explain the case.

Parent specifies commons-net/1.3.0 in dependencyManagement
\- ModuleB declares commons-net/1.4.1 as dependency (overrides version), and 
resolves correctly 1.4.1
\- ModuleA declares ModuleB as dependency (obtaining transitive dep to 
commons-net), and resolves *erroneously* 1.3.0
\- ModuleC (ear) takes in 1.3.0 whilst no module is actually using or declaring 
it

I'd expect this case to resolve 1.4.1 or at least to fail the build, because in 
this example B is the only one using commons-net (maybe exploiting 1.4.1-only 
features), while the final build resolves 1.3.0 (see ModuleA or ModuleC).

I'm not 100% which is the best policy, but i've got problems (wrong jars, 
different behaviours and runtime errors) with this kind silent down-resolution 
of version.

Regards,
Paolo

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