[jira] [Commented] (MNG-6315) NPE in MultiThreadedBuilder

["Karl Heinz Marbaise (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/MNG-6315?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16314932#comment-16314932 ] 

Karl Heinz Marbaise commented on MNG-6315:
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First are you using the most recent version of Maven 3.5.2 ? Furthermore are you using the most recent version of versions-maven-plugin (2.5) ? Can you add a log output which shows the problem.. ? 

Apart from that the [documentation of versions-maven-plugin states|http://www.mojohaus.org/versions-maven-plugin/usage.html] explicitly {{..you need to run these goals separately from any other goals or life-cycle phases.}}. 

> NPE in MultiThreadedBuilder
> ---------------------------
>
>                 Key: MNG-6315
>                 URL: https://issues.apache.org/jira/browse/MNG-6315
>             Project: Maven
>          Issue Type: Bug
>          Components: core
>            Reporter: David Hoover
>
> This smells similar to MNG-6170
> To reproduce, clone https://github.com/prestodb/presto (I've tested, in particular, at c0186a71815be31bac80253827e62c16fd04069f) and try to 'mvn -X -e versions:set versions:commit -DnewVersion=asdf'
> That NPEs on https://github.com/apache/maven/blob/master/maven-core/src/main/java/org/apache/maven/lifecycle/internal/builder/multithreaded/MultiThreadedBuilder.java#L200 (projectBuild.getProject() has already been called up at https://github.com/apache/maven/blob/master/maven-core/src/main/java/org/apache/maven/lifecycle/internal/builder/multithreaded/MultiThreadedBuilder.java#L129 so presumably it's that lifecycleModuleBuilder is null?)
> Running as two separate actions ("mvn versions:set" and then "mvn versions:commit") works for me, but not when combined.



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