*
     * @return witness server address or null if not found
     * @throws IOException if discovery fails
     */
    private InetAddress discoverWitnessService() throws IOException {
        // Try the same server first
        InetAddress serverAddress = transport.getRemoteAddress().toInetAddress();

        if (isWitnessServiceAvailable(serverAddress)) {
            return serverAddress;

 */

package jcifs.smb;

import java.io.EOFException;
import java.io.IOException;
import java.io.InputStream;
import java.io.InterruptedIOException;
import java.io.OutputStream;
import java.net.InetAddress;
import java.net.InetSocketAddress;
import java.net.Socket;
import java.net.SocketException;
import java.security.MessageDigest;
import java.util.Arrays;
import java.util.Collections;
import java.util.LinkedList;

 * limitations under the License.
 */

package okhttp3

import java.io.File
import java.io.IOException
import java.math.BigInteger
import java.net.CookieHandler
import java.net.InetAddress
import java.net.InetSocketAddress
import java.net.Proxy
import java.net.ProxySelector
import java.net.Socket
import java.net.URI
import java.net.URL
import java.nio.charset.Charset
import java.security.KeyPair

 * international domain names work everywhere. For example, "σ" encodes as "xn--4xa". The encoded
 * string is not human readable, but can be used with classes like [InetAddress] to establish
 * connections.
 *
 * ## Why another URL model?
 *
 * Java includes both [java.net.URL][URL] and [java.net.URI][URI]. We offer a new URL
 * model to address problems that the others don't.
 *

import assertk.assertions.isSameInstanceAs
import assertk.assertions.prop
import java.io.File
import java.io.IOException
import java.io.InterruptedIOException
import java.net.HttpURLConnection
import java.net.InetAddress
import java.net.InetSocketAddress
import java.net.Proxy
import java.net.UnknownHostException
import java.time.Duration
import java.util.Arrays
import java.util.concurrent.CountDownLatch

    )
    assertInvalid(
      "http://[::0000:0000:0000:0000::0001]",
      "Invalid URL host: \"[::0000:0000:0000:0000::0001]\"",
    )
  }

  @Test
  fun hostIpv6ScopedAddress() {
    // java.net.InetAddress parses scoped addresses. These aren't valid in URLs.
    assertInvalid("http://[::1%2544]", "Invalid URL host: \"[::1%2544]\"")
  }

  @Test
  fun hostIpv6AddressTooManyLeadingZeros() {