# Archaeology

Sometimes it is necessary to delve into the origins of a particular piece of code. Virgo (and Gemini Web Container) derived from SpringSource dm Server. If you want to start digging, please note that the original source is licensed partly under the GPL v3 and partly under the Apache License v2. The original git repositories are available on git.springsource.org in the dm Server and OSGi Web Container projects. The intermediate repositories used to prepare the donation to Eclipse are also on git.springsource.org in the Virgo and Gemini projects.

In order to protect Eclipse users from accessing non-Eclipse licensed code, the history was trimmed from the Virgo (and Gemini Web Container) repositories. However the commit log message of the first commit to each Eclipse repository notes the SHA of the commit in the intermediate repository from which it was copied. Note also that some samples were not contributed because of uncertain authorship, so a few dm Server repositories do not correspond to any Virgo repository.