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https://jira.codehaus.org/browse/MNG-5680?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=358645#comment-358645
]
George Gastaldi commented on MNG-5680:
--------------------------------------
Yes, it looks like a duplicate of MNG-5368, it should be reopened and fixed
> java.lang.UnsupportedOperationException on DefaultProjectBuilder.build
> ----------------------------------------------------------------------
>
> Key: MNG-5680
> URL: https://jira.codehaus.org/browse/MNG-5680
> Project: Maven
> Issue Type: Bug
> Components: Bootstrap & Build
> Affects Versions: 3.2.3
> Reporter: George Gastaldi
> Priority: Critical
> Attachments: pom.xml
>
>
> {code}
> ProjectBuildingRequest request = ...
> ProjectBuilder builder = plexus.lookup(ProjectBuilder.class);
> builder.build(file, request);
> {code}
> When the build method is called, the following exception is thrown:
> {code}
> java.lang.UnsupportedOperationException
> at java.util.AbstractMap.put(AbstractMap.java:209)
> at
> org.apache.maven.project.DefaultProjectBuilder.initProject(DefaultProjectBuilder.java:815)
> at
> org.apache.maven.project.DefaultProjectBuilder.build(DefaultProjectBuilder.java:174)
> at
> org.apache.maven.project.DefaultProjectBuilder.build(DefaultProjectBuilder.java:118)
> {code}
> The code should be reviewed. This is the offending code inside
> DefaultProjectBuilder:
> {code}
> Artifact artifact =
> repositorySystem.createDependencyArtifact( d );
> if ( artifact == null )
> {
> map = Collections.emptyMap();
> }
> map.put( d.getManagementKey(), artifact );
> {code}
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