/**
     * Returns the known publications for the given project.
     */
    <T extends ProjectPublication> Collection<T> getPublications(Class<T> type, Path projectIdentityPath);

    /**
     * Returns all known publications.
     */
    <T extends ProjectPublication> Collection<Reference<T>> getPublications(Class<T> type);

    interface Reference<T> {
        T get();

        // Should use ProjectState instead

    private final SetMultimap<Path, Reference<?>> publicationsByProject = LinkedHashMultimap.create();

    @Override
    public <T extends ProjectPublication> Collection<T> getPublications(Class<T> type, Path projectIdentityPath) {
        synchronized (publicationsByProject) {
            Collection<Reference<?>> projectPublications = publicationsByProject.get(projectIdentityPath);

    private List<DefaultGradlePublication> publications;
    private DefaultProjectIdentifier projectIdentifier;

    public List<DefaultGradlePublication> getPublications() {
        return publications;
    }

    public DefaultProjectPublications setPublications(List<DefaultGradlePublication> publications) {
        this.publications = publications;
        return this;
    }

            generateTask.setGroup(PublishingPlugin.PUBLISH_TASK_GROUP);
            generateTask.getPublication().set(publication);
            generateTask.getPublications().set(publications);
            generateTask.getOutputFile().convention(buildDir.file("publications/" + publication.getName() + "/module.json"));
        });

            }
        });
    }

    private IvyPublication addMainPublication(PublishingExtension publishing, SoftwareComponent mainComponent) {
        IvyPublication publication = publishing.getPublications().maybeCreate("pluginIvy", IvyPublication.class);
        publication.from(mainComponent);
        return publication;
    }

            }
        });
    }

    private MavenPublication addMainPublication(PublishingExtension publishing, SoftwareComponent mainComponent) {
        MavenPublication publication = publishing.getPublications().maybeCreate("pluginMaven", MavenPublication.class);
        publication.from(mainComponent);
        return publication;
    }

            task.setDescription("Publishes all publications produced by this project.");
            task.setGroup(PUBLISH_TASK_GROUP);
        });
        extension.getPublications().all(publication -> {
            PublicationInternal<?> internalPublication = Cast.uncheckedNonnullCast(publication);
            ProjectInternal projectInternal = (ProjectInternal) project;

            generateTask.setGroup(PublishingPlugin.PUBLISH_TASK_GROUP);
            generateTask.getPublication().set(publication);
            generateTask.getPublications().set(publications);
            generateTask.getOutputFile().convention(buildDir.file("publications/" + publicationName + "/module.json"));

    }

    @Override
    public void repositories(Action<? super RepositoryHandler> configure) {
        configure.execute(repositories);
    }

    @Override
    public PublicationContainer getPublications() {
        return publications;
    }

    @Override
    public void publications(Action<? super PublicationContainer> configure) {
        configure.execute(publications);
    }

     * @since 2.13
     */
    @Override
    ProjectIdentifier getProjectIdentifier();

    /**
     * Returns the publications for this project.
     */
    DomainObjectSet<? extends GradlePublication> getPublications();