TestSuite suite = new TestSuite();
    suite.addTestSuite(LocalCacheTest.class);
    suite.addTest(
        ConcurrentMapTestSuiteBuilder.using(new TestStringCacheGenerator(createCacheBuilder()))
            .named("LocalCache with defaults")
            .withFeatures(
                CollectionSize.ANY,
                MapFeature.GENERAL_PURPOSE,
                CollectionFeature.SUPPORTS_ITERATOR_REMOVE)

    TestSuite suite = new TestSuite();
    suite.addTestSuite(LocalCacheTest.class);
    suite.addTest(
        ConcurrentMapTestSuiteBuilder.using(new TestStringCacheGenerator(createCacheBuilder()))
            .named("LocalCache with defaults")
            .withFeatures(
                CollectionSize.ANY,
                MapFeature.GENERAL_PURPOSE,
                CollectionFeature.SUPPORTS_ITERATOR_REMOVE)

  private static final class TestFuture {

    final ListenableFuture<String> future;
    final String name;
    final Runnable finisher;

    TestFuture(ListenableFuture<String> future, String name, Runnable finisher) {
      this.future = future;
      this.name = name;
      this.finisher = finisher;
    }
  }

  /**

She said it to the Knave of Hearts, who only bowed and smiled in reply.

  `Idiot!' said the Queen, tossing her head impatiently; and,
turning to Alice, she went on, `What's your name, child?'

  `My name is Alice, so please your Majesty,' said Alice very
politely; but she added, to herself, `Why, they're only a pack of
cards, after all.  I needn't be afraid of them!'

   *                 return countDifferentLines(file1Reader, file2Reader);
   *               },
   *               executor)
   *           .closing(executor);
   * }</pre>
   */
  // TODO(cpovirk): Use simple name instead of fully qualified after we stop building with JDK 8.
  @com.google.errorprone.annotations.DoNotMock(
      "Use ClosingFuture.whenAllSucceed() or .whenAllComplete() instead.")
  public static class Combiner {