[jira] [Updated] (MNG-6225) Maven should warn users to use MAVEN_OPTS instead of passing system properties to mvn

["Gili (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/MNG-6225?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Gili updated MNG-6225:
----------------------
    Summary: Maven should warn users to use MAVEN_OPTS instead of passing system properties to mvn  (was: Application cannot output ANSI colors when run by Maven)

> Maven should warn users to use MAVEN_OPTS instead of passing system properties to mvn
> -------------------------------------------------------------------------------------
>
>                 Key: MNG-6225
>                 URL: https://issues.apache.org/jira/browse/MNG-6225
>             Project: Maven
>          Issue Type: Bug
>          Components: Command Line, core
>    Affects Versions: 3.5.0
>            Reporter: Gili
>            Priority: Major
>
> I'm not sure which Maven component this bug report belongs to (please reassign if needed).
> This is a follow-up to https://issues.apache.org/jira/browse/SUREFIRE-1369
> To recap: someone (probably Maven core) is redirecting the native stdout handle when running plugins such as Surefire. This prevents applications from outputting ANSI colors under Windows 10 because:
> * Applications must explicitly enable ANSI support using JNI.
> * The JNI calls fail if the stdout handle has been redirected.
> If I run the exact same application outside of Maven, JNI no longer detects that stdout has been redirected and ANSI colors as expected.
> Any idea who is doing the redirection, and how to disable it?



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