checkNoOutput(skipNulls, ITERABLE_FOUR_NULLS);
    checkResult(skipNulls, ITERABLE_1, "1");
    checkResult(skipNulls, ITERABLE_12, "1-2");
    checkResult(skipNulls, ITERABLE_123, "1-2-3");
    checkResult(skipNulls, ITERABLE_NULL_1, "1");
    checkResult(skipNulls, ITERABLE_1_NULL, "1");
    checkResult(skipNulls, ITERABLE_1_NULL_2, "1-2");
  }

  public void testUseForNull() {

                    Map<String, String> map = Maps.newHashMap();
                    putEntries(map, entries);
                    map.putAll(ENTRIES_TO_FILTER);
                    map = Maps.filterEntries(map, FILTER_ENTRIES_1);
                    return Maps.filterEntries(map, FILTER_ENTRIES_2);
                  }
                })
            .named("Maps.filterEntries[Maps.filterEntries[Map, Predicate], Predicate]")

    checkNoOutput(skipNulls, ITERABLE_FOUR_NULLS);
    checkResult(skipNulls, ITERABLE_1, "1");
    checkResult(skipNulls, ITERABLE_12, "1-2");
    checkResult(skipNulls, ITERABLE_123, "1-2-3");
    checkResult(skipNulls, ITERABLE_NULL_1, "1");
    checkResult(skipNulls, ITERABLE_1_NULL, "1");
    checkResult(skipNulls, ITERABLE_1_NULL_2, "1-2");
  }

  public void testUseForNull() {

                    unfiltered.add("yyy");
                    unfiltered.addAll(ImmutableList.copyOf(elements));
                    unfiltered.add("zzz");
                    return Sets.filter(unfiltered, Collections2Test.LENGTH_1);
                  }
                })
            .named("Sets.filter, no nulls")
            .withFeatures(
                CollectionFeature.SUPPORTS_ADD,
                CollectionFeature.SUPPORTS_REMOVE,

    }
  }

  enum ExampleDerivedFeature implements Feature<ExampleDerivedInterface> {
    DERIVED_FEATURE_1,
    DERIVED_FEATURE_2(ExampleBaseFeature.BASE_FEATURE_1),
    DERIVED_FEATURE_3,

    COMPOUND_DERIVED_FEATURE(
        DERIVED_FEATURE_1, DERIVED_FEATURE_2, ExampleBaseFeature.BASE_FEATURE_2);

    private Set<Feature<? super ExampleDerivedInterface>> implied;

   *     </ul>
   */
  @Deprecated
  public static HashFunction sha1() {
    return Sha1Holder.SHA_1;
  }

  private static class Sha1Holder {
    static final HashFunction SHA_1 = new MessageDigestHashFunction("SHA-1", "Hashing.sha1()");
  }

  /** Returns a hash function implementing the SHA-256 algorithm (256 hash bits). */

    assertEquals(0, partitions.size());
  }

  public void testPartition_1_1() {
    List<Integer> source = Collections.singletonList(1);
    List<List<Integer>> partitions = Lists.partition(source, 1);
    assertEquals(1, partitions.size());
    assertEquals(Collections.singletonList(1), partitions.get(0));
  }

  public void testPartition_1_2() {
    List<Integer> source = Collections.singletonList(1);

   * ISO-8859-1: ISO Latin Alphabet Number 1 (ISO-LATIN-1).
   *
   * <p><b>Java 7+ users:</b> this constant should be treated as deprecated; use {@link
   * java.nio.charset.StandardCharsets#ISO_8859_1} instead.
   *
   */
  public static final Charset ISO_8859_1 = Charset.forName("ISO-8859-1");

  /**
   * UTF-8: eight-bit UCS Transformation Format.
   *
   * <p><b>Java 7+ users:</b> this constant should be treated as deprecated; use {@link

    return suite;
  }

  static final Predicate<@Nullable String> NOT_YYY_ZZZ =
      input -> !"yyy".equals(input) && !"zzz".equals(input);

  static final Predicate<String> LENGTH_1 = input -> input.length() == 1;

  @J2ktIncompatible
  @GwtIncompatible // suite
  private static Test testsForFilter() {
    return CollectionTestSuiteBuilder.using(
            new TestStringCollectionGenerator() {

    return suite;
  }

  static final Predicate<@Nullable String> NOT_YYY_ZZZ =
      input -> !"yyy".equals(input) && !"zzz".equals(input);

  static final Predicate<String> LENGTH_1 = input -> input.length() == 1;

  @J2ktIncompatible
  @GwtIncompatible // suite
  private static Test testsForFilter() {
    return CollectionTestSuiteBuilder.using(
            new TestStringCollectionGenerator() {