Replace your clanchat.java with this-
package server.model.players.packets;
import server.util.Misc;
import server.model.players.Client;
import server.model.players.PacketType;
import server.Server;
/**
* Chat
**/
public class ClanChat implements PacketType {
@Override
public void processPacket(Client c, int packetType, int packetSize) {
String textSent = Misc.longToPlayerName2(c.getInStream().readQWord() );
textSent = textSent.replaceAll("_", " ");
//c.sendMessage(textSent);
Server.clanChat.handleClanChat(c, textSent);
}
}