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https://issues.apache.org/jira/browse/MNG-7521?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17570754#comment-17570754
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ASF GitHub Bot commented on MNG-7521:
-------------------------------------
khmarbaise opened a new pull request, #778:
URL: https://github.com/apache/maven/pull/778
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[core-its]: https://maven.apache.org/core-its/core-it-suite/
> Remove WARNING during build
> ---------------------------
>
> Key: MNG-7521
> URL: https://issues.apache.org/jira/browse/MNG-7521
> Project: Maven
> Issue Type: Improvement
> Affects Versions: 4.0.0
> Reporter: Karl Heinz Marbaise
> Assignee: Karl Heinz Marbaise
> Priority: Minor
> Fix For: 4.0.0
>
>
> Currently the build of Maven master (4.0.0) produces a WARNING:
> {code}
> [WARNING]
> [WARNING] Some problems were encountered while building the effective model
> for org.apache.maven:maven-embedder:jar:4.0.0-alpha-1-SNAPSHOT
> [WARNING] 'dependencies.dependency.(groupId:artifactId:type:classifier)' must
> be unique: commons-io:commons-io:jar -> duplicate declaration of version (?)
> @ line 179, column 17
> [WARNING]
> [WARNING] It is highly recommended to fix these problems because they
> threaten the stability of your build.
> [WARNING]
> [WARNING] For this reason, future Maven versions might no longer support
> building such malformed projects.
> [WARNING]
> {code}
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