import java.net.URLConnection;
import java.net.URLStreamHandler;

public class Handler extends URLStreamHandler {

    public static final String PROTOCOL_TYPE = "test";

    @Override
    protected URLConnection openConnection(URL u) throws IOException {
        return null;
    }

        .setTrafficStatsTag(101)
        .build()

    req.start()
    return completableFuture
  }

  @Test
  fun urlConnection() {
    val conn = engine.openConnection(URL("https://google.com/robots.txt")) as HttpURLConnection

    val text =
      conn.inputStream.use {
        it.bufferedReader().readText()
      }

    assertEquals(200, conn.responseCode)

     */
    public Handler() {
    }

    @Override
    protected int getDefaultPort() {
        return SmbConstants.DEFAULT_PORT;
    }

    @Override
    public URLConnection openConnection(final URL u) throws IOException {
        return new SmbFile(u);
    }

    @Override
    protected void parseURL(final URL u, String spec, final int start, int limit) {
        final String host = u.getHost();

        } else if (stream != null) {
            when(conn.getInputStream()).thenReturn(stream);
        }
    }

    /**
     * Test helper class for mocking URL.openConnection() behavior
     */
    static class TestURLStreamHandler extends java.net.URLStreamHandler {
        private final List<HttpURLConnection> connections = new ArrayList<>();
        private int currentIndex = 0;

        this.transportContext = tc;
    }

    @Override
    protected int getDefaultPort() {
        return SmbConstants.DEFAULT_PORT;
    }

    @Override
    public URLConnection openConnection(final URL u) throws IOException {
        if (log.isDebugEnabled()) {
            log.debug("Opening file " + u);
        }
        return new SmbFile(u, getTransportContext());
    }

    /**
     * @return

     *
     * @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.

     */
    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)));
    }

   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(resource.getProtocol())) {
                    final JarURLConnection jarURLConnection = (JarURLConnection) resource.openConnection();
                    try (JarFile jarFile = jarURLConnection.getJarFile()) {
                        final Enumeration<JarEntry> entries = jarFile.entries();
                        while (entries.hasMoreElements()) {