The XenServer team have re-licensed their SDK as promised. Links are below. We can import this directly as a CloudStack dependency now.
Ewan. [1] http://community.citrix.com/display/xs/XenServer+SDK+Archive [2] http://community.citrix.com/download/attachments/38633496/XenServerJava-5.6.100-2.zip?version=1 [3] http://community.citrix.com/download/attachments/38633496/XenServerJava-5.6.100-2-src.zip?version=1