* @return {@code true} if remote access has been disabled, {@code false} otherwise.
     */
    boolean isOffline();

    /**
     * Enables/disables network access to remote repositories.
     *
     * @param offline {@code true} to disable remote access, {@code false} to allow network access.
     * @return This request, never {@code null}.
     */
    RepositoryRequest setOffline(boolean offline);

    /**

     * Gets the downstream projects of the specified project. A downstream project is a project that directly or
     * indirectly depends on the given project.
     *
     * @param project The project whose downstream projects should be retrieved, must not be {@code null}.
     * @param transitive A flag whether to retrieve all direct and indirect downstream projects or just the immediate
     *            downstream projects.

@Deprecated(since = "4.0.0")
public interface ModelResolver {

    /**
     * Tries to resolve the POM for the specified coordinates.
     *
     * @param groupId The group identifier of the POM, must not be {@code null}.
     * @param artifactId The artifact identifier of the POM, must not be {@code null}.
     * @param version The version of the POM, must not be {@code null}.
     * @return The source of the requested POM, never {@code null}.

/**
 * {@link Iterator}を {@link Enumeration}にするためのアダブタです。
 *
 * @author higa
 * @param <T>
 *            列挙する要素の型
 */
public class IteratorEnumeration<T> implements Enumeration<T> {

    /** 反復子 */
    protected final Iterator<T> iterator;

    /**
     * {@link IteratorEnumeration}を作成します。
     *
     * @param iterator
     *            反復子。{@literal null}であってはいけません
     */

    }

    /**
     * @param fieldRuleMap the fieldRuleMap to set
     */
    public void setFieldRuleMap(final Map<String, String> fieldRuleMap) {
        this.fieldRuleMap = fieldRuleMap;
    }

    /**
     * @return the trimSpace
     */
    public boolean isTrimSpace() {
        return trimSpaceEnabled;
    }

    /**
     * @param trimSpace the trimSpace to set
     */

              </models>
              <templates>
                <template>model.vm</template>
              </templates>
              <params>
                <param>packageModelV4=org.apache.maven.api.plugin.descriptor</param>
              </params>
            </configuration>
          </execution>
          <execution>
            <id>plugin-doc</id>
            <goals>
              <goal>xdoc</goal>

    /**
     * Create a remote download repository.
     *
     * @param id        the unique identifier of the repository
     * @param url       the URL of the repository
     * @param layout    the layout of the repository
     * @param snapshots the policies to use for snapshots
     * @param releases  the policies to use for releases
     */
    public MavenArtifactRepository(
            String id,

    private final ModelBuildingResult result;

    /**
     * Creates a new exception with the specified problems.
     *
     * @param model The model that could not be built, may be {@code null}.
     * @param modelId The identifier of the model that could not be built, may be {@code null}.
     * @param problems The problems that cause this exception, may be {@code null}.

      }
    };

    abstract <T> Iterable<T> view(T root, TreeTraverser<T> viewer);
  }

  private Iterable<BinaryNode> view;

  @Param Topology topology;

  @Param({"1", "100", "10000", "1000000"})
  int size;

  @Param Traversal traversal;

  @Param({"1234"})
  SpecialRandom rng;

  @BeforeExperiment
  void setUp() {

 * a {@link Graph}.
 *
 * @author James Sexton
 * @param <N> Node parameter type
 * @param <V> Value parameter type
 */
@ElementTypesAreNonnullByDefault
interface GraphConnections<N, V> {

  Set<N> adjacentNodes();

  Set<N> predecessors();

  Set<N> successors();

  /**
   * Returns an iterator over the incident edges.
   *