SERIALIZABLE_INCLUDING_VIEWS(SERIALIZABLE),

  SUBSET_VIEW,
  DESCENDING_VIEW,

  /**
   * For documenting collections that support no optional features, such as {@link
   * java.util.Collections#emptySet}
   */
  NONE;

  private final Set<Feature<? super Collection>> implied;

  CollectionFeature(Feature<? super Collection>... implied) {
    this.implied = copyToSet(implied);
  }

  @Override

    assertTrue(multimap.entries().isEmpty());
    assertTrue(multimap.equals(HashMultimap.create()));
    assertEquals(emptySet(), multimap.get("foo"));
    assertEquals(0, multimap.hashCode());
    assertTrue(multimap.isEmpty());
    assertEquals(HashMultiset.create(), multimap.keys());
    assertEquals(emptySet(), multimap.keySet());
    assertEquals(0, multimap.size());
    assertTrue(multimap.values().isEmpty());

    public Set<String> myspecifiedProperties() {
        if (__specifiedProperties != null) {
            return __specifiedProperties.getPropertyNames();
        }
        return DfCollectionUtil.emptySet();
    }

    public void myspecifyProperty(String propertyName) {
        registerSpecifiedProperty(propertyName);
    }

    public void myspecifyPropertyCancel(String propertyName) {

import static com.google.common.truth.Truth.assertThat;
import static java.util.Arrays.asList;
import static java.util.Collections.emptyList;
import static java.util.Collections.emptySet;
import static java.util.Collections.singleton;
import static java.util.Collections.singletonList;

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

                }
            }
        }

        if (labelTypePatternList.isEmpty()) {
            return Collections.emptySet();
        }

        final Set<String> valueSet = new HashSet<>();
        for (final LabelTypePattern pattern : labelTypePatternList) {
            if (pattern.match(path)) {

        assertNotNull(result);
        assertEquals(16, result.length);
    }

    @Test
    void testHMACT64WithEmptyKey() {
        // Test with empty key
        byte[] emptyKey = new byte[0];
        HMACT64 hmac = new HMACT64(emptyKey);
        hmac.engineUpdate(TEST_DATA, 0, TEST_DATA.length);
        byte[] result = hmac.engineDigest();

        assertNotNull(result);
        assertEquals(16, result.length);

        TestSortedSetGenerator<E> delegate, Bound to, Bound from) {
      this.to = to;
      this.from = from;
      this.delegate = delegate;

      SortedSet<E> emptySet = delegate.create();
      this.comparator = emptySet.comparator();

      SampleElements<E> samples = delegate.samples();
      List<E> samplesList = new ArrayList<>(samples.asList());
      sort(samplesList, comparator);

import static com.google.common.truth.Truth.assertThat;
import static java.util.Arrays.asList;
import static java.util.Collections.emptyList;
import static java.util.Collections.emptySet;
import static java.util.Collections.singleton;
import static java.util.Collections.singletonList;

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

        testData.add(createRelatedContent("emptytest", "Empty Term Content", ""));
        mockBhv.setTestData(testData);

        relatedContentHelper.load();

        String[] results = relatedContentHelper.getRelatedContents("");
        assertEquals(0, results.length);

        // Test with the actual term
        results = relatedContentHelper.getRelatedContents("emptytest");
        assertEquals(1, results.length);

import static com.google.common.collect.testing.features.MapFeature.ALLOWS_ANY_NULL_QUERIES;
import static com.google.common.truth.Truth.assertThat;
import static java.util.Collections.emptyList;
import static java.util.Collections.emptySet;

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