No archives located in the jenkins jobs folder when building with uploadArchives

I have a bunch of jenkins freestyle projects that builds java projects using gradle 1.5 and the gradle jenkins plugin.

On the jenkins master each job has a ‘builds’ folder, eg:


I have configured each job to only keep 10 builds including artifacts. In the builds folder there are 10 folders named by date but they only contain :


No artifacts are stored in these folders. Why are the artifacts not stored in the Jenkins jobs builds folders? They are uploaded just fine to Artifactory.