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https://issues.apache.org/jira/browse/MNG-7556?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Michael Osipov updated MNG-7556:
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Description:
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.
was:
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.
> 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
> Priority: Major
> 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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