[jira] Commented: (MNG-2651) POM interpolator treats ${pom.something} like ${something} and prefers system properties

["Wayne Fay (JIRA)" <ji...@codehaus.org>]

    [ http://jira.codehaus.org/browse/MNG-2651?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#action_87052 ] 

Wayne Fay commented on MNG-2651:
--------------------------------

This seems to be the root cause behind numerous other bugs posted in JIRA...
MNG-2288
MNG-2339
MNG-2486
MNG-2653

It is also the cause for quite a lot of emails on the Maven Users list over the last year. :(

> POM interpolator treats ${pom.something} like ${something} and prefers system properties
> ----------------------------------------------------------------------------------------
>
>                 Key: MNG-2651
>                 URL: http://jira.codehaus.org/browse/MNG-2651
>             Project: Maven 2
>          Issue Type: Bug
>          Components: Inheritance and Interpolation
>    Affects Versions: 2.0.4
>            Reporter: Daniel Schulz
>         Assigned To: Jason van Zyl
>
> The POM interpolator (RegexBasedModelInterpolator) removes all leading "pom.", "project." and "env." portions of an expression before evaluating it.  then searching for values happens in the following order: system properties, project properties, pom bean properties.
> An example: Although ${pom.version} is more specific than ${version}, version wins. That's the problem in MNGECLIPSE-20.
> IMHO the interpolation strategy should be changed.

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