return map(dependencies, session::getNode);
    }

    private static DependencyFilter getScopeDependencyFilter(PathScope scope) {
        Set<String> scopes =
                scope.dependencyScopes().stream().map(DependencyScope::id).collect(Collectors.toSet());
        return (n, p) -> {
            org.eclipse.aether.graph.Dependency d = n.getDependency();
            return d == null || scopes.contains(d.getScope());
        };
    }

    @Override
    public ProjectScope requireProjectScope(String id) {
        return getService(ProjectScopeRegistry.class).require(id);
    }

    @Override
    public DependencyScope requireDependencyScope(String id) {
        return DependencyScope.forId(nonNull(id, "id"));
    }

    @Override
    public PathScope requirePathScope(String id) {
        return getService(PathScopeRegistry.class).require(id);
    }