docs: public static InetAddress getLoopbackAddress() {
  		try {
  			final Enumeration<NetworkInterface> interfaces = NetworkInterface.getNetworkInterfaces();
  			if (interfaces != null) {
  				NetworkInterface inter;
  				InetAddress adr;
  				Enumeration<InetAddress> addrs;
  				while (interfaces.hasMoreElements()) {
  					inter = interfaces.nextElement();
  					addrs = inter.getInetAddresses();
  					if (addrs != null) {
  						while (addrs.hasMoreElements()) {
  							adr = addrs.nextElement();
  							if (adr != null && adr.isLoopbackAddress() && (adr instanceof Inet4Address)) {
  								return adr;
  							}
  						}
  					}
  				}
  			}
  		} catch (SocketException e) {
  			//
  		}
  		return null;
  	}