The source code from mineplex 2018 leak with commit history dating back to 2014, it requires a lengthy setup to get functional but is a reasonably easy compile if you know what your doing just have to repatch the spigot

Jonathan Williams 90fbc397ff Converted gem rewards to boolean return from website. ... Implemented gem transactions and source.		2013-10-18 00:46:06 -07:00
Maps	Bob wants to play!	2013-08-29 15:55:49 +10:00
Plugins	Converted gem rewards to boolean return from website.	2013-10-18 00:46:06 -07:00
TestApps/LOCTester	Initial Commit	2013-08-27 08:14:08 -07:00
TexturePack	Initial Commit	2013-08-27 08:14:08 -07:00
Webserver/ServerHandler	Initial Commit	2013-08-27 08:14:08 -07:00
Website	Converted gem rewards to boolean return from website.	2013-10-18 00:46:06 -07:00