Описание тега rythm
Rythm is a Java template engine inspired by C#'s Razor
Demos are at http://fiddle.rythmengine.com/
The git repository is at https://github.com/greenlaw110/Rythm
See also http://www.playframework.org/modules/rythm. Note this is a document for PlayRythm plugin, but most content applies to using Rythm as a stand alone java library