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https://issues.apache.org/jira/browse/MNG-5965?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Janos Gyerik updated MNG-5965:
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Comment: was deleted
(was: Although {{sonar:sonar}} is mentioned here, it's not required for the
reproducer, and it has nothing to do with the issue here. You can run any Maven
goals and observe that every phase is executed twice when parallel builds are
enabled with {{-T num}}.)
> 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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