TransferResource.getRepositoryUrl is documented to end in a slash if known, so we should not add one.
Parsing POMs
Downloaded artifact http://repo.jenkins-ci.org/public//org/jenkins-ci/plugins/plugin/1.456/plugin-1.456.pom
Downloaded artifact http://repo.jenkins-ci.org/public//org/jenkins-ci/jenkins/1.26/jenkins-1.26.pom
[FIXED JENKINS-17775] Find (model) parent POMs properly during fingerprint recording at end of build.