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http://jira.codehaus.org/browse/MNG-4720?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Benjamin Bentmann closed MNG-4720.
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Resolution: Fixed
Assignee: Benjamin Bentmann
Added in [r961926|http://svn.apache.org/viewvc?view=revision&revision=961926].
> Create an integration test to capture effects of exclusions from dependency
> management in combination with exclusions from regular dependencies
> -----------------------------------------------------------------------------------------------------------------------------------------------
>
> Key: MNG-4720
> URL: http://jira.codehaus.org/browse/MNG-4720
> Project: Maven 2 & 3
> Issue Type: Task
> Components: Integration Tests
> Reporter: Benjamin Bentmann
> Assignee: Benjamin Bentmann
>
> Given this innocent POM snippet:
> {code:xml}
> <dependencyManagement>
> <dependencies>
> <dependency>
> <groupId>org.apache.maven</groupId>
> <artifactId>maven-model</artifactId>
> <version>2.0.6</version>
> <exclusions>
> <exclusion>
> <groupId>org.codehaus.plexus</groupId>
> <artifactId>plexus-utils</artifactId>
> </exclusion>
> </exclusions>
> </dependency>
> </dependencies>
> </dependencyManagement>
> <dependencies>
> <dependency>
> <groupId>org.apache.maven</groupId>
> <artifactId>maven-model</artifactId>
> <exclusions>
> <exclusion>
> <groupId>foo</groupId>
> <artifactId>bar</artifactId>
> </exclusion>
> </exclusions>
> </dependency>
> </dependencies>
> {code}
> What will be the effective exclusions applied to the dependencies of
> maven-model?
> It depends on the context in which the POM is processed. Technically, the two
> exclusions are not merged in the effective POM (right now, the effective POM
> only propagates managed exclusions to a dependency if the dependency has no
> exclusions declared). However, for a local project POM, the artifact
> collector superimposes the exclusion of plexus-utils from the dependency
> management onto the maven-model artifact such that eventually both exclusions
> apply during dependency resolution. In contrast, for a dependency POM, this
> superimposition does not happen, such that exclusions from dependency
> management do not apply to dependencies that by themselves have already
> exclusions specified.
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