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https://issues.apache.org/jira/browse/MNG-5697?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17731167#comment-17731167
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Herve Boutemy commented on MNG-5697:
------------------------------------

existing projects will require.
1. to have plugins as extension
2. to have plugins as plugins, and not only pluginManagement
at least, error message when packaging is missing is really clear:
{noformat}[ERROR] [ERROR] Some problems were encountered while processing the 
POMs:
[ERROR] Unknown packaging: bundle @ line 27, column 16{noformat}

and I can understand that we want to remove Jakarta EE packaging definition 
from core (war, ear, rar, ...) and Maven Plugin, but removing jar looks a very 
bad idea

> remove LifecycleMapping and ArtifactHandler from maven-core: move to target 
> packaging plugin
> --------------------------------------------------------------------------------------------
>
>                 Key: MNG-5697
>                 URL: https://issues.apache.org/jira/browse/MNG-5697
>             Project: Maven
>          Issue Type: Improvement
>          Components: Plugins and Lifecycle
>            Reporter: Robert Scholte
>            Priority: Major
>             Fix For: 4.x / Backlog
>
>
> Maven Core should only be aware of the pom packaging details, the rest of the 
> {{ArtifactHandlers}} and {{LifecycleMappings}} should be moved to their own 
> packaging plugin:
> - jar packaging: maven-jar-plugin
> - ejb and ejb3 packagings: maven-ejb-plugin
> - maven-plugin packaging: maven-plugin-plugin
> - war packaging: maven-war-plugin
> - ear packaging: maven-ear-plugin
> - rar packaging: maven-rar-plugin
> - par packaging: ?
> {{LifecycleMappings}} 
> http://maven.apache.org/ref/3.2.5/maven-core/default-bindings.html
> {{ArtifactHandlers}} 
> http://maven.apache.org/ref/3.2.5/maven-core/artifact-handlers.html
> *Maven core should then get the lifecycle mappings and artifact handlers 
> configurations from the plugin at the beginning of the build, before begin 
> able to calculate the build plan*



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