@SuppressWarnings("EmptyList") // ImmutableList doesn't support nullable element types
  CollectionFuture(
      ImmutableCollection<? extends ListenableFuture<? extends V>> futures,
      boolean allMustSucceed) {
    super(futures, allMustSucceed, true);

    List<@Nullable Present<V>> values =
        futures.isEmpty()
            ? Collections.<@Nullable Present<V>>emptyList()

import static com.google.common.collect.testing.features.CollectionFeature.SERIALIZABLE;
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.nCopies;
import static java.util.Collections.singletonList;

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

        MavenSession ms = new MavenSession(null, rss, mer, null);
        DefaultSession session =
                new DefaultSession(ms, mock(RepositorySystem.class), Collections.emptyList(), null, null, null);

        assertEquals(
                RootLocator.UNABLE_TO_FIND_ROOT_PROJECT_MESSAGE,
                assertThrows(IllegalStateException.class, session::getRootDirectory)

    public ResolutionNode(Artifact artifact, List<ArtifactRepository> remoteRepositories) {
        this.artifact = artifact;
        this.remoteRepositories = remoteRepositories;
        depth = 0;
        parents = Collections.emptyList();
        parent = null;
    }

    public ResolutionNode(Artifact artifact, List<ArtifactRepository> remoteRepositories, ResolutionNode parent) {
        this.artifact = artifact;

import org.apache.maven.project.MavenProject;

public class DefaultMavenExecutionResult implements MavenExecutionResult {
    private MavenProject project;

    private List<MavenProject> topologicallySortedProjects = Collections.emptyList();

    private DependencyResolutionResult dependencyResolutionResult;

    private final List<Throwable> exceptions = new CopyOnWriteArrayList<>();

            List<String> nodeTrail = new ArrayList<>(trail.size() + 1);
            nodeTrail.addAll(trail);
            nodeTrail.add(artifact.getId());

            if (filter == null || filter.accept(node, Collections.emptyList())) {
                artifact.setDependencyTrail(nodeTrail);
                artifacts.add(artifact);
            }

            toArtifacts(artifacts, node.getChildren(), nodeTrail, filter);
        }
    }

  override fun saveFromResponse(
    url: HttpUrl,
    cookies: List<Cookie>,
  ) {
    responseCookies.add(cookies)
  }

  override fun loadForRequest(url: HttpUrl): List<Cookie> = if (requestCookies.isEmpty()) emptyList() else requestCookies.removeFirst()

        Project project;
        Artifact rootArtifact;
        DependencyCoordinates root;
        List<DependencyCoordinates> dependencies = Collections.emptyList();
        List<DependencyCoordinates> managedDependencies = Collections.emptyList();
        boolean verbose;
        PathScope pathScope;
        Predicate<PathType> pathTypeFilter;
        Version targetVersion;

        Collections2.permutations(Collections.<Integer>emptyList());

    assertEquals(1, permutationSet.size());
    assertTrue(permutationSet.contains(Collections.<Integer>emptyList()));

    Iterator<List<Integer>> permutations = permutationSet.iterator();
    assertNextPermutation(Collections.<Integer>emptyList(), permutations);
    assertNoMorePermutations(permutations);
  }

  }

  public void testSkip_pastEnd() {
    Collection<String> set = ImmutableSet.of("a", "b");
    assertEquals(emptyList(), Lists.newArrayList(FluentIterable.from(set).skip(20)));
  }

  public void testSkip_pastEndList() {
    Collection<String> list = Lists.newArrayList("a", "b");
    assertEquals(emptyList(), Lists.newArrayList(FluentIterable.from(list).skip(20)));
  }

  public void testSkip_skipNone() {