I think TRWTF is how he's trying to compile this mess: C:\Users\Matthew\Documents\server.main.project12>javac ./skills<font color="darkgreen">/*.java</font> The directories should be laid out in a tree like 'server/main/project12'.And as someone noted above, this is related to RuneScape. It is definitely not production code; it's from a server emulator written by hundreds of 12 year olds.