I am just checking up on the licensing for Hudson plugins. I know the Hudson license is MIT, but I need to confirm, does that apply to the plugins as well? The particular plugin I am interested in is email-ext. I couldn't find any specific licensing information on it.
Great question! Basically, on the plugins hosted on Hudson-ci / java.net the implicit license is MIT unless stated otherwise.
Any of the core plugins shipped as a physical part of the Eclipse distro will be under EPL.
Hope that helps