@Override
    public int hashCode() {
        return sourceAddress.hashCode() * 31 + destinationAddresses.hashCode();
    }
Returns the destination addresses of the proxied request.
Note that {@linkplain InetSocketAddress#getPort() port} {@code 0} means that the port number is unknown.
core/src/main/java/com/linecorp/armeria/server/ProxiedAddresses.java