[jira] [Created] (MNG-7222) Validate and warn for naming collisions between Maven and System properties

["Konrad Windszus (Jira)" <ji...@apache.org>]

Konrad Windszus created MNG-7222:
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             Summary: Validate and warn for naming collisions between Maven and System properties
                 Key: MNG-7222
                 URL: https://issues.apache.org/jira/browse/MNG-7222
             Project: Maven
          Issue Type: Improvement
          Components: Core
            Reporter: Konrad Windszus


As properties referenced via {{${x}}} are first being resolved against system properties and only afterwards against Maven properties according to https://maven.apache.org/pom.html#properties. As this is often not noticed  such collisions should be detected by Maven and lead to a WARN.

An example for such a collision can be seen at https://github.com/adobe/aem-core-wcm-components/blob/6a294b0483c711a0283474f962a4643234e47c6e/parent/pom.xml#L64 which is never effective as this is always overridden by https://docs.oracle.com/javase/tutorial/essential/environment/sysprop.html



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