The change for JENKINS-5210 breaks all use of the existing downloadService.post instances for all the tools and the update center itself. See http://hudson.pastebin.com/m22c14ec. I'm not sure what to do to fix it.
Cannot manually trigger a build in revision 344
Build Now does not work from Job page or Job/Trend page , only from top level Hudson Dashboard
Hudson 1.344 Console Output doesn't work in realtime with Mozilla Firefox 3.6