in src/main/java/org/apache/sling/maven/projectsupport/ControlListener.java [156:173]
    private SocketAddress getSocketAddress(String host, int port) {
        try {
            if (port == -1) {
                port = DEFAULT_LISTEN_PORT;
            }
            if (host != null) {
                return new InetSocketAddress(host, port);
            } else {
                return new InetSocketAddress(InetAddress.getLocalHost(), port);
            }
        } catch (UnknownHostException uhe) {
            log.error("Unknown host in '" + host + "': " + uhe.getMessage(), null);
        }
        return null;
    }