*/
  @Throws(UnknownHostException::class)
  fun lookup(hostname: String): List<InetAddress>

  companion object {
    /**
     * A DNS that uses [InetAddress.getAllByName] to ask the underlying operating system to
     * lookup IP addresses. Most custom [Dns] implementations should delegate to this instance.
     */
    @JvmField
    val SYSTEM: Dns = DnsSystem()

     */
    NetbiosAddress[] getNodeStatus(NetbiosAddress nbtAddress) throws UnknownHostException;

    /**
     * Lookup addresses for the given <code>hostname</code>.
     *
     * @param hostname the hostname to resolve
     * @param possibleNTDomainOrWorkgroup if true, perform additional master browser lookup
     * @return found addresses
     * @throws UnknownHostException if the hostname cannot be resolved
     */

        headers = headersOf("Location", "http://www.fakeurl:" + server.port),
      ),
    )
    server.enqueue(MockResponse())
    val dns = FakeDns()
    dns["fakeurl"] = client.dns.lookup(server.hostName)
    dns["www.fakeurl"] = client.dns.lookup(server.hostName)
    client =
      client
        .newBuilder()
        .dns(dns)
        .build()
    val call =
      client.newCall(
        Request

 */
public class MsrpcLookupSids extends lsarpc.LsarLookupSids {

    SID[] sids;

    /**
     * Creates a new request to lookup SIDs.
     *
     * @param policyHandle the LSA policy handle
     * @param sids the array of SIDs to lookup
     */
    public MsrpcLookupSids(final LsaPolicyHandle policyHandle, final SID[] sids) {

 * fallbacks to guarantee that a fallback address is available.
 */
class DoubleInetAddressDns : Dns {
  override fun lookup(hostname: String): List<InetAddress> {
    val addresses = Dns.SYSTEM.lookup(hostname)
    return listOf(addresses[0], addresses[0])
  }

 *
 *  * A DNS lookup failed
 *  * The configuration is incapable of carrying the request, such as when the client is configured
 *    to use `H2_PRIOR_KNOWLEDGE` but the URL's scheme is `https:`.
 *  * Preemptive proxy authentication failed.
 *
 * Planning failures are not necessarily fatal. For example, even if we can't DNS lookup the first
 * proxy in a list, looking up a subsequent one may succeed.

    hostAddresses.remove(hostname)
    return this
  }

  @Throws(UnknownHostException::class)
  fun lookup(
    hostname: String,
    index: Int,
  ): InetAddress = hostAddresses[hostname]!![index]

  @Throws(UnknownHostException::class)
  override fun lookup(hostname: String): List<InetAddress> {
    requestedHosts.add(hostname)
    return hostAddresses[hostname] ?: throw UnknownHostException()
  }

  const val FLAG_COMPRESSED = 0x20 // Used for data.

  /** Lookup table for valid frame types. */
  private val FRAME_NAMES =
    arrayOf(
      "DATA",
      "HEADERS",
      "PRIORITY",
      "RST_STREAM",
      "SETTINGS",
      "PUSH_PROMISE",
      "PING",
      "GOAWAY",
      "WINDOW_UPDATE",
      "CONTINUATION",
    )

  /**

     * @param jndiName
     *            The name of the object to look up. Must not be {@literal null} or an empty string.
     * @return The object bound to <code>jndiName</code>.
     * @throws NamingRuntimeException
     *             Thrown if the initial context cannot be created.
     */
    public static Object lookup(final InitialContext ctx, final String jndiName) throws NamingRuntimeException {

    this.replacementArray = replacementArray;
  }

  // Returns the non-null array of replacements for fast lookup.
  char[][] getReplacementArray() {
    return replacementArray;
  }

  // Creates a replacement array from the given map. The returned array is a
  // linear lookup table of replacement character sequences indexed by the
  // original character value.
  @VisibleForTesting