This plugin integrates Jenkins with the VirtualBox 4.x virtual machine. This is a clone of the virtualbox 3.x plugin git://github.com/jenkinsci/virtualbox-plugin.git ... and fixes JENKINS-8634 "VirtualBox 4.0.2 web-server became incompatible with virtualbox plugin 0.2.1" http://issues.jenkins-ci.org/browse/JENKINS-8634