ENC28J60 ehtercard library use socket connection

How to ethercard library use socket connection?
ethernet library is not work.

client1(arduino) ---- server(java socket server) ---- client2(java client,arduino ...)

1.start client1 server connecting
2.client2 send data client1
3.receive data client1

socket server programing end

i need example client1 sketch
plz help