Redmine

themes.rb makes an assumption that the themes css files will be located in the public folder which is at the same level as the app folder. However, in a JRuby on Rails war structure, the public files are actually located in the root of the WAR, whereas most of the other rails app components are under \WEB_INF.

A workaround is to copy the themes folder into \WEB_INF\public which allows the theme discovery to work.