Artifactory P2 cache doesn't work with eclipse indigo update site compositeContent.jar metadata

Following the example on the JFrog wiki exactly no longer works with Pro version 2.6.1.

• http://wiki.jfrog.org/confluence/display/RTF/P2+Repositories
  • I'm only attempting to add http://download.eclipse.org/releases/indigo, not the google plugins.

It appears that the download.eclipse.org site no longer provides anything other than a compositeContent.jar file, and my Artifactory Pro instance isn't caching anything in the "download.eclipse.org-cache" remote repository. I get a 404 error: "Virtual repository serves only non-compressed P2 XML metadata not compositeArtifacts.jar."

However, when I wget the http://artifactory/artifactory/p2/compositeContent.xml file it doesn't contain any entries, just a skeleton of P2 XML.

I can't find any way to force it to proxy the JAR file, so my p2 virtual repository is always empty.