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 95449fec26 Merge branch 'master' of ssh://dev.mineplex.com:7999/min/Mineplex		2013-10-26 11:06:19 -05:00
Maps	Bob wants to play!	2013-08-29 15:55:49 +10:00
Plugins	Merge branch 'master' of ssh://dev.mineplex.com:7999/min/Mineplex	2013-10-26 11:06:19 -05:00
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	Prepping filterChat and CoreClientManager for mysql	2013-10-23 16:36:13 -05:00