PCT does not resolve JCasC properly for plugins like Artifact Manager S3, because there is no Group ID resolution for plugins not included into CAP. The default "org.jenkins-ci.plugins" is used, and it is not a case for JCasC.
Until JCasC is included into CAP, PCT tests will be failing if they include JCasC compatibility tests
- PCT is updated to consult with update center when resolving group IDs for plugins
- There is an integration tests which verifies it