Michael Osipov created MNG-7556:
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Summary: Clean up notion between user properties and system
properties
Key: MNG-7556
URL: https://issues.apache.org/jira/browse/MNG-7556
Project: Maven
Issue Type: Task
Reporter: Michael Osipov
Assignee: Michael Osipov
Fix For: 3.9.0-candidate, 4.0.0-alpha-1, 4.0.0
For a very long time we have documented that the user can set system properties
via {{mvn -Dfoo=bar}}, but actually those are user properties which are
promoted to system properties and it some cases system properties cannot be
modified **after* the JVM has been started. To properly set system properties
there are basically two ways:
* use {{MAVEN_OPTS}} environment variable
* use {{.mvn/jvm.config}} file
A third option in the future we could introduce, like other Java tools, a
{{-J-Dfoo=bar}} option with the restriction of the the paragraph above.
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