* </ul>
 *
 * <h4>{@link java.util.concurrent.CompletableFuture} / {@link java.util.concurrent.CompletionStage}
 * </h4>
 *
 * <p>Users of {@code CompletableFuture} will likely want to continue using {@code
 * CompletableFuture}. {@code FluentFuture} is targeted at people who use {@code ListenableFuture},
 * who can't use Java 8, or who want an API more focused than {@code CompletableFuture}. (If you

    val negotiatedProtocol: String,
    val content: String,
  )

  private fun execute(
    engine: HttpEngine,
    executor: ExecutorService,
    url: String,
  ): CompletableFuture<Response> {
    val completableFuture = CompletableFuture<Response>()
    val buffer = Buffer()

    val req =
      engine
        .newUrlRequestBuilder(
          url,
          executor,
          object : Callback {

        // Stop all async notification tasks first
        List<CompletableFuture<Void>> taskFutures = new ArrayList<>(asyncNotifyTasks.values());
        for (CompletableFuture<Void> task : taskFutures) {
            task.cancel(true);
        }
        asyncNotifyTasks.clear();

        // Unregister all active registrations
        List<CompletableFuture<Void>> unregisterFutures = new ArrayList<>();

    }
    
    public CompletableFuture<WitnessRegistration> registerForNotifications(
            String shareName, 
            InetAddress serverAddress,
            WitnessNotificationListener listener) {
        
        return CompletableFuture.supplyAsync(() -> {
            try {
                // Create registration

     */
    public CompletableFuture<HandleInfo> reconnectHandle(HandleInfo handleInfo, Exception cause) {
        if (handleInfo == null) {
            return CompletableFuture.failedFuture(new IOException("Handle info cannot be null"));
        }

        if (handleInfo.isExpired()) {

import static org.mockito.Mockito.never;
import static org.mockito.Mockito.verify;
import static org.mockito.Mockito.when;

import java.io.IOException;
import java.util.concurrent.CompletableFuture;
import java.util.concurrent.ExecutionException;

import org.junit.jupiter.api.BeforeEach;
import org.junit.jupiter.api.Test;
import org.mockito.Mock;
import org.mockito.MockitoAnnotations;

import assertk.assertions.isNotNull
import assertk.fail
import java.io.IOException
import java.net.ServerSocket
import java.net.Socket
import java.net.SocketException
import java.util.concurrent.CompletableFuture
import java.util.concurrent.TimeUnit
import kotlin.test.assertFailsWith
import okhttp3.Call
import okhttp3.Callback
import okhttp3.DelegatingServerSocketFactory
import okhttp3.DelegatingSocketFactory

         */
        public CompletableFuture<Void> getNotificationFuture() {
            return notificationFuture;
        }

        /**
         * Sets the future for asynchronous notification completion
         * @param future the notification future to set
         */
        public void setNotificationFuture(CompletableFuture<Void> future) {
            this.notificationFuture = future;

        .body("data: hello\n\n")
        .setHeader("content-type", "text/event-stream")
        .build()
    );
    Request request = new Request.Builder().url(server.url("/")).build();
    CompletableFuture<Void> future = new CompletableFuture<>();
    factory.newEventSource(request, new EventSourceListener() {
      @Override
      public void onOpen(@NotNull EventSource eventSource, @NotNull Response response) {
        try {

import static org.mockito.Mockito.lenient;
import static org.mockito.Mockito.mock;
import static org.mockito.Mockito.verify;
import static org.mockito.Mockito.when;

import java.net.InetAddress;
import java.util.concurrent.CompletableFuture;
import java.util.concurrent.CountDownLatch;
import java.util.concurrent.TimeUnit;

import org.junit.jupiter.api.BeforeEach;
import org.junit.jupiter.api.Test;
import org.junit.jupiter.api.extension.ExtendWith;