*/
    protected HttpURLConnection open(final URL u) throws IOException {
        final HttpURLConnection connection = (HttpURLConnection) (proxy != null ? u.openConnection(proxy) : u.openConnection());
        if (sslSocketFactory != null && connection instanceof HttpsURLConnection) {
            ((HttpsURLConnection) connection).setSSLSocketFactory(sslSocketFactory);
        }

     */
    public static JarFile toJarFile(final URL jarUrl) {
        assertArgumentNotNull("jarUrl", jarUrl);

        final URLConnection con = URLUtil.openConnection(jarUrl);
        if (con instanceof JarURLConnection) {
            return JarURLConnectionUtil.getJarFile((JarURLConnection) con);
        }
        return create(new File(toJarFilePath(jarUrl)));
    }

     *
     * @param u The URL to open a connection to
     * @return A new GcsURLConnection instance
     * @throws IOException If the connection cannot be opened
     */
    @Override
    protected URLConnection openConnection(final URL u) throws IOException {
        return new GcsURLConnection(u);
    }

    /**
     * GcsURLConnection is a URL connection implementation for accessing GCS objects.

     *
     * @param u The URL to open a connection to
     * @return A new S3URLConnection instance
     * @throws IOException If the connection cannot be opened
     */
    @Override
    protected URLConnection openConnection(final URL u) throws IOException {
        return new S3URLConnection(u);
    }

    /**
     * S3URLConnection is a URL connection implementation for accessing S3 objects.

     *
     * @param u The URL to open a connection to
     * @return A new StorageURLConnection instance
     * @throws IOException If the connection cannot be opened
     */
    @Override
    protected URLConnection openConnection(final URL u) throws IOException {
        return new StorageURLConnection(u);
    }

    /**
     * StorageURLConnection is a URL connection implementation for accessing storage objects.

   the way the hostname verifier was selected.
 * Fix: Locking bug in SpdyConnection.
 * Fix: Ignore null header values (for compatibility with HttpURLConnection).
 * Add URLStreamHandlerFactory support so that `URL.openConnection()` uses
   OkHttp.
 * Expose the transport ("http/1.1", "spdy/3", etc.) via magic request headers.
   Use `X-Android-Transports` to write the preferred transports and

                        }
                    }
                } else if ("jar".equals(resourceUri.getScheme())) {
                    final JarURLConnection jarURLConnection = (JarURLConnection) resource.openConnection();
                    try (JarFile jarFile = jarURLConnection.getJarFile()) {
                        final Enumeration<JarEntry> entries = jarFile.entries();
                        while (entries.hasMoreElements()) {

        }
        return message;
    }

    private void reconnect() throws IOException {
        connection = (HttpURLConnection) connection.getURL().openConnection();
        connection.setRequestMethod(method);
        headerFields = null;
        final Iterator properties = requestProperties.entrySet().iterator();
        while (properties.hasNext()) {

    // Minimal URLStreamHandler to allow creating smb:// URLs in tests
    private static final URLStreamHandler SMB_HANDLER = new URLStreamHandler() {
        @Override
        protected URLConnection openConnection(URL u) {
            return null; // not used
        }
    };

    @BeforeEach
    void setup() {
        when(ctx.getConfig()).thenReturn(config);
        when(ctx.getCredentials()).thenReturn(creds);

            ssf = ((HttpsURLConnection) this.connection).getSSLSocketFactory();
        }

        this.connection = (HttpURLConnection) this.connection.getURL().openConnection();

        if (this.connection instanceof HttpsURLConnection) {
            if (hv != null) {
                ((HttpsURLConnection) this.connection).setHostnameVerifier(hv);
            }