No not exactly but i know the most current versions of X-Board are found at the Winboard Forum and are authored by HG Muller who has support from the original x-board winboard team. You might ask a question on that forum.
On linux there is a java chessclub interface with chess engine support http://www.LanternChess.com It runs best on linux with Sun Java 6 or Oracle Java 7 or 8, not the other open source Linux only java.