}

    private boolean isLocalRepository(ArtifactRepository repository) {
        // unfortunately, the API doesn't allow to tell a remote repo and the local repo apart...
        return "local".equals(repository.getId());
    }

    classpathRuntime(5),
    versionedGraph(6),
    scopedGraph(7);

    private int id;

    // Constructor
    MetadataResolutionRequestTypeEnum(int id) {
        this.id = id;
    }

    int getId() {
        return id;
    }

    public static final ArtifactScopeEnum DEFAULT_SCOPE = compile;

    private int id;

    // Constructor
    ArtifactScopeEnum(int id) {
        this.id = id;
    }

    int getId() {
        return id;
    }

    /**
     * Helper method to simplify null processing
     *
     * @param scope a scope or {@code null}
     * @return the provided scope or DEFAULT_SCOPE
     */

                        logger.warn("  " + unsafeGoal.getId());
                    }
                } else {
                    logger.warn("The following plugins are not marked as thread-safe in " + project.getName() + ":");
                    for (Plugin unsafePlugin : unsafePlugins) {
                        logger.warn("  " + unsafePlugin.getId());
                    }
                    logger.warn("");

     */
    String CENTRAL_ID = "central";

    /**
     * Gets the identifier of this repository.
     *
     * @return the (case-sensitive) identifier, never {@code null}
     */
    @Nonnull
    String getId();

    /**
     * Gets the type of the repository, for example "default".
     *
     * @return the (case-sensitive) type of the repository, never {@code null}
     */
    @Nonnull
    String getType();

        plugin.setArtifactId(artifactId);

        for (String goal : goals) {
            PluginExecution pluginExecution = new PluginExecution();
            pluginExecution.setId("default-" + goal);
            pluginExecution.addGoal(goal);
            plugin.addExecution(pluginExecution);
        }

        return plugin;
    }

    @Override
    public void flush() {
        for (CacheRecord record : cache.values()) {
            ClassRealm realm = record.getRealm();
            try {
                realm.getWorld().disposeRealm(realm.getId());
            } catch (NoSuchRealmException e) {
                // ignore
            }
        }
        cache.clear();
    }

    @Override

        // groupId:artifactId -> (version -> vertex)
        Map<String, Map<String, Vertex>> vertexMap = new HashMap<>(projects.size() * 2);

        for (MavenProject project : projects) {
            String projectId = getId(project);

            MavenProject conflictingProject = projectMap.put(projectId, project);

            if (conflictingProject != null) {
                throw new DuplicateProjectException(

    boolean hasClassifier();

    File getFile();

    void setFile(File destination);

    String getBaseVersion();

    void setBaseVersion(String baseVersion);

    String getId();

    String getDependencyConflictId();

    void addMetadata(ArtifactMetadata metadata);

    Collection<ArtifactMetadata> getMetadataList();

    void setRepository(ArtifactRepository remoteRepository);

        buffer.append("----------").append(LS);

        int counter = 0;

        for (Artifact artifact : artifacts) {
            String message = (++counter) + ") " + artifact.getId();

            buffer.append(constructMissingArtifactMessage(
                    message,
                    "  ",
                    artifact.getGroupId(),
                    artifact.getArtifactId(),