[jira] [Updated] (MNG-5965) Parallel build multiplies work if multiple goals are given

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

     [ https://issues.apache.org/jira/browse/MNG-5965?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Matthias Schmalz updated MNG-5965:
----------------------------------
    Attachment: parallel.test.zip

> Parallel build multiplies work if multiple goals are given
> ----------------------------------------------------------
>
>                 Key: MNG-5965
>                 URL: https://issues.apache.org/jira/browse/MNG-5965
>             Project: Maven
>          Issue Type: Bug
>          Components: Bootstrap & Build
>    Affects Versions: 3.3.9
>         Environment: Windows 7 64bit
>            Reporter: Matthias Schmalz
>         Attachments: parallel.test.zip
>
>
> When I run a parallel build which invokes multiple goals Maven multiplies the work e.g. when I run
> install sonar:sonar
> Every phase is executed once as expected. However when I run
> install sonar:sonar -T 4
> Every phase is executed twice.
> The problem can be reproduced with a single simple Java project (of course parallel builds are useless with a single module). Debugging showed that every Mojo is really called twice per project.
> Find attached a simple project and two build outputs, where you can see that the parallel build is doing everything twice (you can ignore that Sonar fails in the end, due to no server is up).



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