How to get final url after all redirects, including JS redirects?

Question

Java

Good afternoon.
There is a function with which I get the final URL after redirects on the server:

public static String getFinalURL(String url) throws IOException {
    HttpURLConnection con = (HttpURLConnection) new URL(url).openConnection();
    con.setInstanceFollowRedirects(false);
    con.connect();
    con.getInputStream();

    if (con.getResponseCode() == HttpURLConnection.HTTP_MOVED_PERM || con.getResponseCode() == HttpURLConnection.HTTP_MOVED_TEMP) {
        String redirectUrl = con.getHeaderField("Location");
        return getFinalURL(redirectUrl);
    }
    return url;
}

Is it possible to make the function recognize redirects written in JS?
Surely through HttpURLConnection will not work, but perhaps there are other means?
The android webview is not suitable.