return whenAllSucceed(
        FluentIterable.of(future1, future2, future3, future4, future5, future6)
            .append(moreFutures));
  }

  private final AtomicReference<State> state = new AtomicReference<>(OPEN);
  private final CloseableList closeables;
  private final FluentFuture<V> future;

  private ClosingFuture(ListenableFuture<V> future) {
    this(future, new CloseableList());
  }

import java.util.concurrent.LinkedBlockingQueue
import java.util.concurrent.SynchronousQueue
import java.util.concurrent.TimeUnit
import java.util.concurrent.TimeoutException
import java.util.concurrent.atomic.AtomicReference
import javax.net.ssl.SSLException
import kotlin.test.assertFailsWith
import mockwebserver3.Dispatcher
import mockwebserver3.MockResponse
import mockwebserver3.MockWebServer
import mockwebserver3.PushPromise