import java.net.InetAddress
import java.net.UnknownHostException
import okhttp3.Dns

/**
 * Internal Bootstrap DNS implementation for handling initial connection to DNS over HTTPS server.
 *
 * Returns hardcoded results for the known host.
 */
internal class BootstrapDns(
  private val dnsHostname: String,
  private val dnsServers: List<InetAddress>,
) : Dns {
  @Throws(UnknownHostException::class)

     *
     * @param host the host name to resolve
     * @return an array of IP addresses for the host
     * @throws UnknownHostException if the host name cannot be resolved
     */
    @Override
    public InetAddress[] resolve(final String host) throws UnknownHostException {
        // Handle IPv6 addresses in bracket notation
        if (host != null && host.length() > 2 && host.startsWith("[") && host.endsWith("]")) {

import static org.junit.jupiter.api.Assertions.assertFalse;
import static org.junit.jupiter.api.Assertions.assertSame;
import static org.junit.jupiter.api.Assertions.assertTrue;

import java.net.InetAddress;
import java.net.UnknownHostException;
import java.util.Properties;

import org.junit.jupiter.api.BeforeEach;
import org.junit.jupiter.api.DisplayName;
import org.junit.jupiter.api.Test;

/**
 * Test class for Config utility functionality

     *
     * @param host the host name to resolve
     * @return an array of IP addresses for the host
     * @throws UnknownHostException if the host name cannot be resolved
     */
    @Override
    public InetAddress[] resolve(final String host) throws UnknownHostException {
        // Handle IPv6 addresses in bracket notation
        if (host != null && host.length() > 2 && host.startsWith("[") && host.endsWith("]")) {

    String getHostAddress();

    /**
     * Converts this address to an InetAddress.
     *
     * @return this address as an InetAddress
     * @throws UnknownHostException if the host cannot be resolved
     */
    InetAddress toInetAddress() throws UnknownHostException;

    /**
     * Guess called name to try for session establishment. These
     * methods are used by the smb package.
     *
     * @return guessed name

     * @param pipeType the type of the pipe
     * @throws MalformedURLException if the URL is malformed
     * @throws UnknownHostException if the host cannot be resolved
     */
    public SmbNamedPipe(final String url, final int pipeType) throws MalformedURLException, UnknownHostException {
        super(url);
        this.pipeType = pipeType;
        type = TYPE_NAMED_PIPE;
    }

    /**

            } catch (UnknownHostException e) {
                // Invalid address ignored
            }
        }

        value = props.getProperty("jcifs.netbios.laddr");
        if (value != null) {
            try {
                this.netbiosLocalAddress = InetAddress.getByName(value);
            } catch (UnknownHostException e) {
                // Invalid address ignored

        }

        @Test
        @DisplayName("Should handle UnknownHostException")
        void testGetSmbTransportUnknownHost() throws UnknownHostException, IOException {
            // Given
            when(transportPool.getSmbTransport(context, "unknown.host", DEFAULT_PORT, false, false))
                    .thenThrow(new UnknownHostException("Unknown host"));

            // When & Then

     * @throws UnknownHostException if the server cannot be resolved
     */

    public SmbFileInputStream(final SmbFile file) throws SmbException, MalformedURLException, UnknownHostException {
        this(file, SmbFile.O_RDONLY);
    }

    SmbFileInputStream(final SmbFile file, final int openFlags) throws SmbException, MalformedURLException, UnknownHostException {
        this.file = file;

import static org.junit.jupiter.api.Assertions.assertFalse;
import static org.junit.jupiter.api.Assertions.assertNull;
import static org.junit.jupiter.api.Assertions.assertTrue;

import java.net.InetAddress;
import java.net.UnknownHostException;

import org.junit.jupiter.api.Test;

/**
 * Unit tests for IpAddressUtil class.
 */
public class IpAddressUtilTest {

    @Test
    public void testCompressIPv6() {