Hi Mads,
Thanks a lot for the AdoptOpenJDK plugin, this is a really nice addition to the current Jenkins ecosystem.
Regarding crawlers, I suggest reaching out to the Jenkins INFRA team using the
in...@lists.jenkins-ci.org mailing list or INFRA project in Jenkins JIRA.
As a workaround, AdoprOpenJDK plugin could also pull AdoptOpenJDK releases on its own without relying on the Jenkins infrastructure.
W.r.t Oracle JDK, I would like to note that there are EULA restrictions in Java 11+. One cannot use this Java versions for business without being an Oracle customer.
Currently the OpenJDK plugin offers a "Accept the license" button when enabling the tool, but TBH it looks like a serious risk for Jenkins users if they can get Java 11 by default without reconfirming that they read the user agreement.
Best regards,
Oleg