L2J Server

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L2J Revision Number:3221
L2JDP Revision Number:6306

I really need to compile the server?
Can I use the ".java" files in their directories?

If it is really necessary...
What program can I use to compile?

Thx

Please read, thank you.

http://www.l2jserver.com/trac/wiki (core)
http://www.l2jdp.com/trac/wiki (datapack)