JRoar is a streaming sever for Ogg in pure Java. It casts live Ogg streams to Ogg Vorbis players as IceCast2 does and shouts live Ogg streams to IceCast2 and JRoar. JRoar also accepts live Ogg streams from Ices. The uniqueness of JRoar is that JRoar works as a proxy for live Ogg streams and enables you to share single stream with others.