shadowDns.responder = {
      throw IllegalArgumentException("Network.fromNetworkHandle refusing to instantiate NETID_UNSET Network.")
    }

    val dns = AsyncDns.toDns(asyncDns)

    assertFailure {
      dns.lookup("google.invalid")
    }.apply {
      hasMessage("Network.fromNetworkHandle refusing to instantiate NETID_UNSET Network.")
      isInstanceOf(UnknownHostException::class)
    }
  }

            "filter_chains": [
              {
                "filters": [
                  {
                    "name": "envoy.filters.network.http_connection_manager",
                    "typed_config": {
                      "@type": "type.googleapis.com/envoy.extensions.filters.network.http_connection_manager.v3.HttpConnectionManager",
                      "stat_prefix": "agent",
                      "route_config": {

 *
 * Two instances must be used to get all results for an address.
 *
 * @param network network to use, if not selects the default network.
 */
@RequiresApi(Build.VERSION_CODES.Q)
@ExperimentalOkHttpApi
class AndroidAsyncDns(
  private val dnsClass: AsyncDns.DnsClass,
  private val network: Network? = null,
) : AsyncDns {
  @RequiresApi(Build.VERSION_CODES.Q)
  internal val resolver = DnsResolver.getInstance()

      network.addEdge(1, 2, "1-2b");
      network.addEdge(2, 3, "2-3");
      network.addEdge(3, 1, "3-1");
    }
    assertThat(hasCycle(directedNetwork)).isTrue();
    assertThat(hasCycle(undirectedNetwork)).isTrue();
  }

  @Test
  public void hasCycle_deepPathNetwork() {
    for (MutableNetwork<Integer, String> network : networksToTest) {
      for (int i = 0; i < 100000; i++) {

    return Maps.asMap(network.edges(), network::incidentNodes);
  }

    return Maps.asMap(network.edges(), network::incidentNodes);
  }

   *
   * @return {@code true} if the network was modified as a result of this call
   */
  @CanIgnoreReturnValue
  boolean removeNode(N node);

  /**
   * Removes {@code edge} from this network, if it is present.
   *
   * @return {@code true} if the network was modified as a result of this call
   */
  @CanIgnoreReturnValue
  boolean removeEdge(E edge);

			}
			_, present := network[nodeName]
			if !present {
				if err := isServerResolvable(endpoint, 5*time.Second); err == nil {
					network[nodeName] = string(madmin.ItemOnline)
				} else {
					if xnet.IsNetworkOrHostDown(err, false) {
						network[nodeName] = string(madmin.ItemOffline)
					} else if xnet.IsNetworkOrHostDown(err, true) {
						network[nodeName] = "connection attempt timedout"
					}
				}
			}
		}
	}

  }

  @Test
  fun networkInterceptorsRewriteRequestToServer() {
    rewriteRequestToServer(true)
  }

  private fun rewriteRequestToServer(network: Boolean) {
    server.enqueue(MockResponse())
    addInterceptor(network) { chain: Interceptor.Chain ->
      val originalRequest = chain.request()
      chain.proceed(
        originalRequest.newBuilder()

              "filter_chains": [
                {
                  "filters": [
                    {
                      "name": "envoy.filters.network.http_connection_manager",
                      "typed_config": {
                        "@type": "type.googleapis.com/envoy.extensions.filters.network.http_connection_manager.v3.HttpConnectionManager",
                        "stat_prefix": "connect_terminate",
                        "route_config": {