void handleCustomPacket( Packet250CustomPayload packet, NetworkManager network, NetHandler handler) { if ("REGISTER".equals(packet.channel)) { handleRegistrationPacket(packet, (Player) handler.getPlayer()); } else if ("UNREGISTER".equals(packet.channel)) { handleUnregistrationPacket(packet, (Player) handler.getPlayer()); } else { handlePacket(packet, network, (Player) handler.getPlayer()); } }