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https://issues.apache.org/jira/browse/MNG-6983?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Guillaume Nodet updated MNG-6983:
---------------------------------
Fix Version/s: 4.0.0-alpha-2
> Plugin key can get out of sync with artifactId and groupId
> ----------------------------------------------------------
>
> Key: MNG-6983
> URL: https://issues.apache.org/jira/browse/MNG-6983
> Project: Maven
> Issue Type: Bug
> Components: Core, Plugins and Lifecycle
> Affects Versions: 3.6.3
> Reporter: Paul Pazderski
> Assignee: Michael Osipov
> Priority: Major
> Fix For: 3.8.2, 4.0.0-alpha-1, 4.0.0-alpha-2, 4.0.0
>
> Attachments: pluginNotExecuted.zip
>
>
> I have a project build with maven where some maven plugins are not executed
> without any warning or error shown in output. I was able to reproduce the
> issue with a minimal example. (see attachment)
> The expected result of this example is to get the one source file compiled if
> you invoke {{mvn compile}}.
> If I run this example using Maven 3.6.3 the following output appears:
> {noformat}
> [INFO] Scanning for projects...
> [INFO]
> [INFO] -------------------------< org.example:child
> >--------------------------
> [INFO] Building child 0.0.1-SNAPSHOT
> [INFO] --------------------------------[ jar
> ]---------------------------------
> [INFO]
> [INFO] --- maven-resources-plugin:2.6:resources (default-resources) @ child
> ---
> [INFO] Using 'UTF-8' encoding to copy filtered resources.
> [INFO] skip non existing resourceDirectory
> [...]\pluginNotExecuted\src\main\resources
> [INFO]
> [INFO] --- maven-compiler-plugin:3.1:compile (default-compile) @ child ---
> [INFO] No sources to compile
> [INFO]
> ------------------------------------------------------------------------
> [INFO] BUILD SUCCESS
> [INFO]
> ------------------------------------------------------------------------
> [INFO] Total time: 0.644 s
> [INFO] Finished at: [...]
> [INFO]
> ------------------------------------------------------------------------
> {noformat}
> Notice that there is no execution of the build-helper-maven-plugin (and as
> consequence no source compiled) and no indication why it is missing.
> From what I've found the problem seem to be the usage of variable in the
> plugins groupId. If you replace either the variable in parent- or child-pom
> with the actual value the build shows a warning
> {noformat}
> [WARNING]
> [WARNING] Some problems were encountered while building the effective model
> for org.example:child:jar:0.0.1-SNAPSHOT
> [WARNING] 'build.plugins.plugin.version' for
> org.codehaus.mojo:build-helper-maven-plugin is missing. @ line 16, column 21
> [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]
> {noformat}
> If you replace both variables with the actual value everything works as
> expected.
>
> I investigated the problem further and will provide more details with a pull
> request for a possible fix.
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