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https://issues.apache.org/jira/browse/MNG-7704?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17691400#comment-17691400
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Christoph Läubrich commented on MNG-7704:
-----------------------------------------
As even the small increment fails, I haven't tried the larger one, but as it is
a major release I would assume its fine to require adjustments.
> New field in DefaultProjectBuilder breaks maven-polyglot extension
> ------------------------------------------------------------------
>
> Key: MNG-7704
> URL: https://issues.apache.org/jira/browse/MNG-7704
> Project: Maven
> Issue Type: Bug
> Components: Core
> Affects Versions: 3.9.0
> Reporter: Christoph Läubrich
> Priority: Major
>
> There was a new method introduced:
> org.apache.maven.project.DefaultProjectBuilder.getModelCache()
> this breaks the https://github.com/takari/polyglot-maven extension that fails
> with a NPE if running on maven 3.9.0
> Also this probably should be fixed there, this can be mitigated in maven by
> doing the following:
> {code:java}
> private ModelCache createModelCache(RepositorySystemSession session) {
> if (modelCacheFactory == null) {
>
> return null; // or do whatever DefaultModelCache does here
> }
> return modelCacheFactory.createCache(session);
> }
> {code}
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