Upgrade to Maven 3.8.5 blocks Jenkins core development

[basil]

Service(s)

ci.jenkins.io

Summary

All Jenkins core PR builds are currently failing with Maven errors. As a result all Jenkins core development is blocked.

The cause of the problem is MNG-7432, a regression in Maven 3.8.5. A fix for this regression has been proposed in apache/maven#695. At the time of this writing, the fix has neither been merged nor released.

To unblock Jenkins core development, please revert to Maven 3.8.4.

Reproduction steps

Build a Jenkins core PR and observe the Maven errors.

[dduportal]

The PR jenkins-infra/jenkins-infra#2103 reverts both (Jenkins) tool and VM agent templates to ensure that Maven 3.8.4 is used.

[dduportal]

The cause of the problem is MNG-7432, a regression in Maven 3.8.5. A fix for this regression has been proposed in apache/maven#695. At the time of this writing, the fix has neither been merged nor released.

Thanks for informations @basil ! We'll check once Maven 3.8.6 is released if this regression is fixed.

[basil]

Thank you!