[ http://jira.codehaus.org/browse/MNG-2205?page=all ]
John Casey updated MNG-2205:
----------------------------
Fix Version: 2.1
> "provided" scope dependencies must be transitive
> ------------------------------------------------
>
> Key: MNG-2205
> URL: http://jira.codehaus.org/browse/MNG-2205
> Project: Maven 2
> Type: Bug
> Components: Dependencies
> Reporter: David Boden
> Priority: Critical
> Fix For: 2.1
>
>
> A provided scope dependency can also be thought of as "compile-only".
> Project A requires Sybase JConnect on the runtime classpath. Project A
> declares a "provided" dependency on Sybase JConnect.
> Project B depends upon Project A. Project B declares a "compile" dependency
> on Project A.
> Project C depends upon Project B. Project C declares a "compile" dependency
> on Project B.
> C
> | - compile dependency
> B
> | - compile dependency
> A
> | - provided dependency
> Sybase JConnect
> So, does Project C transitively depend on Sybase JConnect. Yes, of course!
> The "provided" dependency needs to be transitive.
> Ultimately, when Project C gets deployed, Sybase JConnect needs to be
> somewhere on the runtime classpath in order for the application to function.
> It's valid for Project C to assume that Sybase JConnect is available and use
> JDBC all over the Project C code. Project C is safe to do this because it can
> happily deduce that Sybase JConnect will be there in the runtime environment
> because Project A NEEDS IT.
> I've got Use Cases all over my aggregated build which make it absolutely
> critical and common sense that provided scope dependencies are transitive.
> For the (very rare) odd case where you don't want to inherit provided
> dependencies, you can <exclude/> them.
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