ListeningExecutorService executorService, Callable<T> task, BlockingQueue<Future<T>> queue) {
    ListenableFuture<T> future = executorService.submit(task);
    future.addListener(() -> queue.add(future), directExecutor());
    return future;
  }

  /**
   * Returns a default thread factory used to create new threads.
   *
   * <p>When running on AppEngine with access to <a

              }));
    }

    // For more about this test, see the equivalent in AbstractNetworkTest.
    for (Future<?> future : futures.build()) {
      future.get();
    }
    executor.shutdown();
  }

  }

  void assertThatFutureFailsWithException(Future<?> future) {
    try {
      getUninterruptibly(future);
      fail("Expected future to fail: " + future);
    } catch (ExecutionException e) {
      assertThat(e).hasCauseThat().isSameInstanceAs(exception);
    }
  }

  static void assertThatFutureBecomesCancelled(Future<?> future) throws ExecutionException {
    try {

          return i;
        };

    List<Future<Integer>> futures = executor.invokeAll(Collections.nCopies(10, incrementTask));

    for (int i = 0; i < 10; i++) {
      Future<Integer> future = futures.get(i);
      assertTrue("Task should have been run before being returned", future.isDone());
      assertEquals(i, future.get().intValue());
    }

              }));
    }

    // For more about this test, see the equivalent in AbstractNetworkTest.
    for (Future<?> future : futures.build()) {
      future.get();
    }
    executor.shutdown();
  }

          return i;
        };

    List<Future<Integer>> futures = executor.invokeAll(Collections.nCopies(10, incrementTask));

    for (int i = 0; i < 10; i++) {
      Future<Integer> future = futures.get(i);
      assertTrue("Task should have been run before being returned", future.isDone());
      assertEquals(i, future.get().intValue());
    }

```java
public class BatchHandleOperations {
    public void reconnectMultipleHandles(List<HandleInfo> handles) {
        List<CompletableFuture<Void>> futures = new ArrayList<>();
        
        for (HandleInfo handle : handles) {
            futures.add(CompletableFuture.runAsync(() -> {
                try {
                    reconnectHandle(handle);
                } catch (Exception e) {

            } catch (Exception e) {
                throw new CompletionException(e);
            }
        });
        
        futures.add(future);
    }
    
    // Wait for all reads to complete
    try {
        CompletableFuture.allOf(futures.toArray(new CompletableFuture[0]))
            .get(30, TimeUnit.SECONDS);
    } catch (Exception e) {

        if (future.listenersField == expect) {
          future.listenersField = update;
          return true;
        }
        return false;
      }
    }

    @Override
    @Nullable Listener gasListeners(AbstractFutureState<?> future, Listener update) {
      synchronized (future) {
        Listener old = future.listenersField;
        if (old != update) {
          future.listenersField = update;

 */

package com.google.common.util.concurrent;

import static com.google.common.truth.Truth.assertThat;
import static com.google.common.util.concurrent.Futures.immediateFailedFuture;
import static com.google.common.util.concurrent.Futures.immediateFuture;
import static java.util.concurrent.TimeUnit.NANOSECONDS;

import com.google.common.annotations.GwtIncompatible;
import com.google.common.annotations.J2ktIncompatible;