[JENKINS-17248] Be robust against exceptions in ItemListener.onLoaded, since this could interrupt Jenkins startup.
[JENKINS-18775] [JENKINS-17248] Noting.
Merge branch 'master' of github.com:jenkinsci/jenkins
Does not make much sense to put @DataBoundConstructor on an abstract class.
(Stapler 1.218 rejects it, I think correctly.)