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https://issues.apache.org/jira/browse/MNG-5900?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15223150#comment-15223150
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Hervé Boutemy commented on MNG-5900:
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given everything happens in a XML file (not a code source file), with a
specific expression syntax and usual {{$\{project.*}}} expressions, I don't
really understand what confusion you fear by having now {{$\{this.*}}}
expressions
But for sure, we'll add any explanation that you'll feel useful
> early interpolation: support ${this.*} as expression
> ----------------------------------------------------
>
> Key: MNG-5900
> URL: https://issues.apache.org/jira/browse/MNG-5900
> Project: Maven
> Issue Type: New Feature
> Components: Inheritance and Interpolation
> Reporter: Robert Scholte
> Fix For: Issues to be reviewed for 4.x
>
>
> Right now we have $\{project.\*} which always interpolates values based on
> the final project: "classical" interpolation is "late" interpolation. So it
> is not possible that parent poms can lock values, ie avoid child poms
> override. By adding $\{this} for "early" interpolation, it will be possible
> to have intermediate interpolation.
> If a pomfile depends on a parent, that parent will first resolve all
> $\{this.\*} values for itself. Once the fully inherited pom is there, all
> $\{project.\*} will be resolved.
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