The Groovy project is lucky enough to have several continuous integration environments available to us to give us early feedback that as Groovy evolves it remains working on various platforms (including various operating systems, Java versions and to some degree different build systems, e.g. different Ant/Maven versions running on CruiseControl, Bamboo and TeamCity).
At the moment the main CI server is hosted by Canoo but other versions are also hosted by CodeHaus and JetBrains. Details are covered below.