}
  }

  public static final class LongsAsListTailSubListGenerator extends TestLongListGenerator {
    @Override
    protected List<Long> create(Long[] elements) {
      Long[] prefix = {(long) 86, (long) 99};
      Long[] all = concat(prefix, elements);
      return asList(all).subList(2, elements.length + 2);
    }
  }

  public static final class LongsAsListMiddleSubListGenerator extends TestLongListGenerator {

  }

  private static void assertCannotSet(AbstractFuture<Integer> future) {
    assertThat(future.set(99)).isFalse();
    assertThat(future.setException(new IndexOutOfBoundsException())).isFalse();
    assertThat(future.setFuture(new AbstractFuture<Integer>() {})).isFalse();
    assertThat(future.setFuture(immediateFuture(99))).isFalse();
  }

  private static void assertCannotCancel(AbstractFuture<Integer> future) {

    }
  }

  public static final class IntsAsListTailSubListGenerator extends TestIntegerListGenerator {
    @Override
    protected List<Integer> create(Integer[] elements) {
      Integer[] prefix = {(int) 86, (int) 99};
      Integer[] all = concat(prefix, elements);
      return asList(all).subList(2, elements.length + 2);
    }
  }

  public static final class IntsAsListMiddleSubListGenerator extends TestIntegerListGenerator {

    }
  }

  public static final class BytesAsListTailSubListGenerator extends TestByteListGenerator {
    @Override
    protected List<Byte> create(Byte[] elements) {
      Byte[] prefix = {(byte) 86, (byte) 99};
      Byte[] all = concat(prefix, elements);
      return asList(all).subList(2, elements.length + 2);
    }
  }

  public static final class BytesAsListMiddleSubListGenerator extends TestByteListGenerator {

  }

  public static final class CharsAsListTailSubListGenerator extends TestCharListGenerator {
    @Override
    protected List<Character> create(Character[] elements) {
      Character[] prefix = {(char) 86, (char) 99};
      Character[] all = concat(prefix, elements);
      return asList(all).subList(2, elements.length + 2);
    }
  }

  public static final class CharsAsListMiddleSubListGenerator extends TestCharListGenerator {

    }
  }

  public static final class DoublesAsListTailSubListGenerator extends TestDoubleListGenerator {
    @Override
    protected List<Double> create(Double[] elements) {
      Double[] prefix = {(double) 86, (double) 99};
      Double[] all = concat(prefix, elements);
      return asList(all).subList(2, elements.length + 2);
    }
  }

  public static final class DoublesAsListMiddleSubListGenerator extends TestDoubleListGenerator {

  }

  public static final class CharsAsListTailSubListGenerator extends TestCharListGenerator {
    @Override
    protected List<Character> create(Character[] elements) {
      Character[] prefix = {(char) 86, (char) 99};
      Character[] all = concat(prefix, elements);
      return asList(all).subList(2, elements.length + 2);
    }
  }

  public static final class CharsAsListMiddleSubListGenerator extends TestCharListGenerator {

    }
  }

  public static final class FloatsAsListTailSubListGenerator extends TestFloatListGenerator {
    @Override
    protected List<Float> create(Float[] elements) {
      Float[] prefix = {(float) 86, (float) 99};
      Float[] all = concat(prefix, elements);
      return asList(all).subList(2, elements.length + 2);
    }
  }

  public static final class FloatsAsListMiddleSubListGenerator extends TestFloatListGenerator {

  }

  private static void assertCannotSet(AbstractFuture<Integer> future) {
    assertThat(future.set(99)).isFalse();
    assertThat(future.setException(new IndexOutOfBoundsException())).isFalse();
    assertThat(future.setFuture(new AbstractFuture<Integer>() {})).isFalse();
    assertThat(future.setFuture(immediateFuture(99))).isFalse();
  }

  private static void assertCannotCancel(AbstractFuture<Integer> future) {

    }
  }

  public static final class ShortsAsListTailSubListGenerator extends TestShortListGenerator {
    @Override
    protected List<Short> create(Short[] elements) {
      Short[] prefix = {(short) 86, (short) 99};
      Short[] all = concat(prefix, elements);
      return asList(all).subList(2, elements.length + 2);
    }
  }

  public static final class ShortsAsListMiddleSubListGenerator extends TestShortListGenerator {