session, plugin.getGroupId(), plugin.getArtifactId(), plugin.getVersion(), null, null, "maven-plugin"));
    }

    @Nonnull
    default DependencyCoordinate create(@Nonnull Session session, ReportPlugin reportPlugin) {
        // TODO: hard coded string
        return create(DependencyCoordinateFactoryRequest.build(
                session,
                reportPlugin.getGroupId(),

                hash = hash * 31 + Objects.hashCode(exclusion.getArtifactId());
            }
        }

        return hash;
    }

    public static boolean pluginEquals(Plugin a, Plugin b) {
        return Objects.equals(a.getArtifactId(), b.getArtifactId()) //
                && Objects.equals(a.getGroupId(), b.getGroupId()) //

        return (extension ? "extension>" : "plugin>") + plugin.getGroupId() + ":" + plugin.getArtifactId() + ":"
                + version;
    }

    private static String getId(Artifact artifact) {
        return getId(
                artifact.getGroupId(),
                artifact.getArtifactId(),
                artifact.getExtension(),

        }

        return new ModelData(modelSource, rawModel);
    }

    static String getGroupId(Model model) {
        String groupId = model.getGroupId();
        if (groupId == null && model.getParent() != null) {
            groupId = model.getParent().getGroupId();
        }
        return groupId;
    }

    private String getVersion(Model model) {

    public void setGroupId(String groupId) {
        getModel().setGroupId(groupId);
    }

    public String getGroupId() {
        String groupId = getModel().getGroupId();

        if ((groupId == null) && (getModel().getParent() != null)) {
            groupId = getModel().getParent().getGroupId();
        }

        return groupId;
    }

    public void setArtifactId(String artifactId) {

        return key;
    }

    @Nonnull
    public org.eclipse.aether.graph.Dependency getDependency() {
        return dependency;
    }

    @Override
    public String getGroupId() {
        return dependency.getArtifact().getGroupId();
    }

    @Override
    public String getArtifactId() {
        return dependency.getArtifact().getArtifactId();
    }

    @Override
    public String getClassifier() {

        this.artifact = artifact;
    }

    public boolean storedInGroupDirectory() {
        return false;
    }

    public String getGroupId() {
        return artifact.getGroupId();
    }

    public String getArtifactId() {
        return artifact.getArtifactId();
    }

    public String extendedToString() {
        StringBuilder buffer = new StringBuilder(256);

            Plugin plugin, RepositorySystemSession session, List<RemoteRepository> repositories) {
        setGroupId(plugin.getGroupId());
        setArtifactId(plugin.getArtifactId());

        setRepositorySession(session);

        setRepositories(repositories);
    }

    public String getGroupId() {
        return groupId;
    }

    public DefaultPluginVersionRequest setGroupId(String groupId) {

                    "parent.groupId", problems, Severity.FATAL, Version.BASE, parent.getGroupId(), parent);

            validateStringNotEmpty(
                    "parent.artifactId", problems, Severity.FATAL, Version.BASE, parent.getArtifactId(), parent);

            if (equals(parent.getGroupId(), m.getGroupId()) && equals(parent.getArtifactId(), m.getArtifactId())) {
                addViolation(

        return true;
    }

    public String getGroupId() {
        return artifact.getGroupId();
    }

    public String getArtifactId() {
        return artifact.getArtifactId();
    }

    public String getBaseVersion() {
        return artifact.getBaseVersion();
    }

    public Object getKey() {
        return "snapshot " + artifact.getGroupId() + ":" + artifact.getArtifactId() + ":" + artifact.getBaseVersion();