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

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

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

Michael Osipov updated MNG-5965:
--------------------------------
    Comment: was deleted

(was: [~janos.gyerik], cannot reproduce:

{noformat}
PS D:\Entwicklung\workspace-4.7\toll> mvn -V install:install-file "-Dfile=pom.xml" -T10 -Dgrou
pId=one -DartifactId=one -Dversion=1 -Dpackaging=pom
Apache Maven 3.5.4 (1edded0938998edf8bf061f1ceb3cfdeccf443fe; 2018-06-17T20:33:14+02:00)
Maven home: D:\Entwicklung\Programme\apache-maven-3.5.4\bin\..
Java version: 1.8.0_181, vendor: Oracle Corporation, runtime: C:\Program Files\Java\jdk1.8.0_181\jre
Default locale: de_DE, platform encoding: Cp1252
OS name: "windows 10", version: "10.0", arch: "amd64", family: "windows"
[INFO] Scanning for projects...
[INFO]
[INFO] Using the MultiThreadedBuilder implementation with a thread count of 10
[INFO]
[INFO] -----------------------------< toll:toll >------------------------------
[INFO] Building toll 0.0.1-SNAPSHOT
[INFO] --------------------------------[ jar ]---------------------------------
[INFO]
[INFO] --- maven-install-plugin:2.4:install-file (default-cli) @ toll ---
[INFO] Installing D:\Entwicklung\workspace-4.7\toll\pom.xml to C:\Users\mosipov\.m2\repository\one\one\1\one-1.pom
[INFO] ------------------------------------------------------------------------
[INFO] BUILD SUCCESS
[INFO] ------------------------------------------------------------------------
[INFO] Total time: 0.342 s (Wall Clock)
[INFO] Finished at: 2018-12-26T13:18:54+01:00
[INFO] ------------------------------------------------------------------------
{noformat}

Looking into the IT...)

> 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 &amp; Build
>    Affects Versions: 3.3.9
>         Environment: Windows 7 64bit
>            Reporter: Matthias Schmalz
>            Assignee: Michael Osipov
>            Priority: Major
>         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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