We don`t rlly know if rpg is java or not but their server is very close to retail PTS even the same bugs.
The rumors were rpg were using leaked ct2.3 from innova, the ru l2retail company.
And about this, no offense to anybody but until we have the test server is just bullshit.
rpg is not jave
So wich server gonna open with those PTS files?
Dex and wrath are using files from this site everyone can buy them for 700 dolar or so, same sie also offer some "revolutionary" i dont have any info ct.24 java server that will be on bfdr
L2renewall is probably using same files as dex
http://nextdev.org/
Idk about new walkers version but old IG version doesn`t work for w7, asked lot of ppl and nobody found a way to fix it.
Ofc MW works but unless u have a pretty good pc sucks, also need some time to set up vm etc