[jira] [Commented] (MNG-6495) ModelResolver cannot be null

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

    [ https://issues.apache.org/jira/browse/MNG-6495?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16810384#comment-16810384 ] 

Hudson commented on MNG-6495:
-----------------------------

Build unstable in Jenkins: Maven TLP » maven » MNG-6169/MNG-6556 #12

See https://builds.apache.org/job/maven-box/job/maven/job/MNG-6169%252FMNG-6556/12/

> ModelResolver cannot be null
> ----------------------------
>
>                 Key: MNG-6495
>                 URL: https://issues.apache.org/jira/browse/MNG-6495
>             Project: Maven
>          Issue Type: Bug
>          Components: Bootstrap & Build
>    Affects Versions: 3.5.4
>            Reporter: Elliotte Rusty Harold
>            Assignee: Michael Osipov
>            Priority: Major
>             Fix For: 3.6.1
>
>
> Got this exception stacktrace while writing some of my own code today:
> {noformat}
> Exception in thread "main" java.lang.NullPointerException: request.modelResolver cannot be null (parent POM com.google.guava:guava-parent:26.0-jre and POM com.google.guava:guava:[unknown-version])
> 	at org.apache.commons.lang3.Validate.notNull(Validate.java:225)
> 	at org.apache.maven.model.building.DefaultModelBuilder.readParentExternally(DefaultModelBuilder.java:1046)
> 	at org.apache.maven.model.building.DefaultModelBuilder.readParent(DefaultModelBuilder.java:830)
> 	at org.apache.maven.model.building.DefaultModelBuilder.build(DefaultModelBuilder.java:332)
> 	at com.google.cloud.tools.opensource.dependencies.MetadataExplorer.main(MetadataExplorer.java:50)
> {noformat}
> No big deal except that the JavaDoc at [ModelBuildingRequest|http://maven.apache.org/ref/3.5.4/maven-model-builder/apidocs/org/apache/maven/model/building/ModelBuildingRequest.html] says "The model resolver to use, may be null."
> Not sure whether to update the docs or the code here. 



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