[jira] [Created] (MNG-7684) With Maven 3.9.0, `maven.config` requires each flag on a separate line

["Stephan Schroevers (Jira)" <ji...@apache.org>]

Stephan Schroevers created MNG-7684:
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             Summary: With Maven 3.9.0, `maven.config` requires each flag on a separate line
                 Key: MNG-7684
                 URL: https://issues.apache.org/jira/browse/MNG-7684
             Project: Maven
          Issue Type: Bug
    Affects Versions: 3.9.0
         Environment: Maven 3.9.0
Ubuntu 20.04.5 LTS
Bash shell
            Reporter: Stephan Schroevers


Prior to Maven 3.9.0, the {{.mvn/maven.config}} file supported multiple flags on the same line. As of Maven 3.9.0 the flags must be on separate lines. I _assume_ that this is an unintentional regression.

To reproduce, run:
{code:sh}
git clone git@github.com:PicnicSupermarket/error-prone-support.git
cd error-prone-support
git checkout d1f513373fffe21fa463a9d6978cdfa8940e1ce4
mvn -version
{code}

With Maven 3.8.7 the {{mvn -version}} command completes successfully. With Maven 3.9.0 it fails with:
{noformat}
Unable to parse maven.config file options: Unrecognized option: --batch-mode --errors --strict-checksums
{noformat}



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