if myAddress null URI uri new URI http myAddress String host uri getHo

if (myAddress != null) {
                    URI uri = new URI("http://" + myAddress);
                    String host = uri.getHost();
                    if (!hallmark.getHost().equals(host)) {
                        throw new RuntimeException("Invalid hallmark host");
                    }
                    int myPort = uri.getPort() == -1 ? Peers.getDefaultPeerPort() : uri.getPort();
                    if (myPort != hallmark.getPort()) {
                        throw new RuntimeException("Invalid hallmark port");
                    }
                }