`Take off your hat,' the King said to the Hatter.

  `It isn't mine,' said the Hatter.

  `Stolen!' the King exclaimed, turning to the jury, who
instantly made a memorandum of the fact.

  `I keep them to sell,' the Hatter added as an explanation;
`I've none of my own.  I'm a hatter.'

  Here the Queen put on her spectacles, and began staring at the
Hatter, who turned pale and fidgeted.

      assertThat(logged).hasSize(1); // the second failure is logged
      assertThat(logged.get(0).getThrown()).isInstanceOf(MyException.class);
    }
  }

  /** All as list will log extra exceptions that occur later. */
  public void testAllAsList_logging_multipleExceptions_doneLater() throws Exception {
    SettableFuture<Object> future1 = SettableFuture.create();
    SettableFuture<Object> future2 = SettableFuture.create();

      assertThat(logged).hasSize(1); // the second failure is logged
      assertThat(logged.get(0).getThrown()).isInstanceOf(MyException.class);
    }
  }

  /** All as list will log extra exceptions that occur later. */
  public void testAllAsList_logging_multipleExceptions_doneLater() throws Exception {
    SettableFuture<Object> future1 = SettableFuture.create();
    SettableFuture<Object> future2 = SettableFuture.create();

  `Take off your hat,' the King said to the Hatter.

  `It isn't mine,' said the Hatter.

  `Stolen!' the King exclaimed, turning to the jury, who
instantly made a memorandum of the fact.

  `I keep them to sell,' the Hatter added as an explanation;
`I've none of my own.  I'm a hatter.'

  Here the Queen put on her spectacles, and began staring at the
Hatter, who turned pale and fidgeted.

 *
 * Start a {@code ClosingFuture} pipeline {@linkplain #submit(ClosingCallable, Executor) from a
 * callable block} that may capture objects for later closing. To start a pipeline from a {@link
 * ListenableFuture} that doesn't create resources that should be closed later, you can use {@link
 * #from(ListenableFuture)} instead.
 *
 * <h3>Derived steps</h3>
 *

  }

  /**
   * Computes the difference between two maps. This difference is an immutable snapshot of the state
   * of the maps at the time this method is called. It will never change, even if the maps change at
   * a later time.
   *
   * <p>Since this method uses {@code HashMap} instances internally, the keys of the supplied maps
   * must be well-behaved with respect to {@link Object#equals} and {@link Object#hashCode}.
   *