}
            }
        }

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

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

        // Register each class individually to ensure partial failures don't skip all registrations
        registerClassSafely(kryo, Collections.emptyList().getClass());
        registerClassSafely(kryo, Collections.emptySet().getClass());
        registerClassSafely(kryo, Collections.emptyMap().getClass());
        registerClassSafely(kryo, Collections.singletonList(null).getClass());

  }

  /**
   * Creates an empty {@code CopyOnWriteArraySet} instance.
   *
   * <p><b>Note:</b> if you need an immutable empty {@link Set}, use {@link Collections#emptySet}
   * instead.
   *
   * @return a new, empty {@code CopyOnWriteArraySet}
   * @since 12.0
   */
  @J2ktIncompatible
  @GwtIncompatible // CopyOnWriteArraySet

                pomRepositories = rel.project.getRemoteArtifactRepositories();
            }
        }

        Set<Artifact> artifacts = Collections.emptySet();

        if (!artifact.getArtifactHandler().isIncludesDependencies()) {
            artifacts = new LinkedHashSet<>();

            for (Dependency dependency : dependencies) {

  }

  /**
   * Creates an empty {@code CopyOnWriteArraySet} instance.
   *
   * <p><b>Note:</b> if you need an immutable empty {@link Set}, use {@link Collections#emptySet}
   * instead.
   *
   * @return a new, empty {@code CopyOnWriteArraySet}
   * @since 12.0
   */
  @J2ktIncompatible
  @GwtIncompatible // CopyOnWriteArraySet

      new ImmutableSortedMap<>(ImmutableSortedSet.emptySet(Ordering.natural()), ImmutableList.of());

  static <K, V> ImmutableSortedMap<K, V> emptyMap(Comparator<? super K> comparator) {
    if (Ordering.natural().equals(comparator)) {
      return of();
    } else {
      return new ImmutableSortedMap<>(ImmutableSortedSet.emptySet(comparator), ImmutableList.of());
    }
  }

  /**

     * Builds a new min-max priority queue using the previously specified options, and having no
     * initial contents.
     */
    public <T extends B> MinMaxPriorityQueue<T> create() {
      return create(Collections.emptySet());
    }

    /**
     * Builds a new min-max priority queue using the previously specified options, and having the
     * given initial elements.
     */

     * Builds a new min-max priority queue using the previously specified options, and having no
     * initial contents.
     */
    public <T extends B> MinMaxPriorityQueue<T> create() {
      return create(Collections.emptySet());
    }

    /**
     * Builds a new min-max priority queue using the previously specified options, and having the
     * given initial elements.
     */

            realms = new HashSet<>();
            for (ClassRealm realm : classWorld.getRealms()) {
                realms.add(realm.getId());
            }
        } else {
            realms = Collections.emptySet();
        }

        try {
            if (stdout != null) {
                System.setOut(stdout);
            }
            if (stderr != null) {
                System.setErr(stderr);

  private final AbstractPackageSanityTests sanityTests = new ConcretePackageSanityTests();

  public void testFindClassesToTest_testClass() {
    assertThat(findClassesToTest(ImmutableList.of(EmptyTest.class))).isEmpty();
    assertThat(findClassesToTest(ImmutableList.of(EmptyTests.class))).isEmpty();
    assertThat(findClassesToTest(ImmutableList.of(EmptyTestCase.class))).isEmpty();