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[m2e-dev] Maven 4 model support in m2e

Hello,

Maven 4 RC6 has been available for a couple of days now, and the Maven 4 GA release seems to be getting close (couple of month ?).

I have already started using it in my projects. In my opinion, it is a very significant improvement over Maven 3, especially thanks to the producer POM / consumer POM separation, which eliminates much of the "flatten POM" complexity.

Some of the new Maven 4 model changes require corresponding support in m2e, in particular:

  • the new project.subprojects element replacing project.modules

  • the root="true" attribute on the project element

These changes affect project discovery and workspace import.

Is there already work planned in m2e to support the Maven 4 project model? If so, is there an issue or roadmap that I could follow?

If not, I would be happy to test Maven 4 builds with m2e and provide feedback.

I have read the m2e contribution guide:
https://github.com/eclipse-m2e/m2e-core/blob/main/CONTRIBUTING.md

Is it still up to date, or is there anything else I should know before getting involved?

Thanks!

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