List<BuildOperationRecord> getRoots() {
        operations.roots
    }

    @Override
    @SuppressWarnings("GrUnnecessaryPublicModifier")
    public <T extends BuildOperationType<?, ?>> BuildOperationRecord root(Class<T> type, Spec<? super BuildOperationRecord> predicate = Specs.satisfyAll()) {
        def detailsType = BuildOperationTypes.detailsType(type)
        def roots = operations.roots.findAll {

            addIndex(JvmDependenciesIndexImpl(roots))
            indexedRoots.forEach { javaRoot ->
                if (javaRoot.file.isDirectory) {
                    if (javaRoot.type == JavaRoot.RootType.SOURCE) {
                        // NB: [JavaCoreProjectEnvironment#addSourcesToClasspath] calls:
                        //   1) [CoreJavaFileManager#addToClasspath], which is used to look up Java roots;

    }

    public static ImmutableListMultimap<String, HashCode> getRootHashes(FileSystemSnapshot roots) {
        if (roots == FileSystemSnapshot.EMPTY) {
            return ImmutableListMultimap.of();
        }
        ImmutableListMultimap.Builder<String, HashCode> builder = ImmutableListMultimap.builder();
        roots.accept(snapshot -> {
            builder.put(snapshot.getAbsolutePath(), snapshot.getHash());

        List<String> roots;
        if (nonNull(scope, "scope") == ProjectScope.MAIN) {
            roots = prj.getCompileSourceRoots();
        } else if (scope == ProjectScope.TEST) {
            roots = prj.getTestCompileSourceRoots();
        } else {
            throw new IllegalArgumentException("Unsupported scope " + scope);
        }
        return roots.stream()
                .map(Paths::get)

		return nil, nil, fmt.Errorf("error when retrieving CA cert: (%v)", err)
	}
	// Verify the certificate chain before returning the certificate
	roots := x509.NewCertPool()
	if roots == nil {
		return nil, nil, fmt.Errorf("failed to create cert pool")
	}
	if ok := roots.AppendCertsFromPEM(caCert); !ok {
		return nil, nil, fmt.Errorf("failed to append CA certificate")
	}
	intermediates := x509.NewCertPool()

		}
		if opts.Roots != nil && opts.Roots.systemPool {
			platformChains, err := c.systemVerify(&opts)
			// If the platform verifier succeeded, or there are no additional
			// roots, return the platform verifier result. Otherwise, continue
			// with the Go verifier.
			if err == nil || opts.Roots.len() == 0 {
				return platformChains, err
			}
		}
	}

	if opts.Roots == nil {
		opts.Roots = systemRootsPool()

    }

    private static FileHierarchySet from(File... roots) {
        from(roots as List)
    }

    private static FileHierarchySet from(Iterable<File> roots) {
        def set = FileHierarchySet.empty()
        for (def root : roots) {
            set = set.plus(root)
        }
        return set
    }

			Tags:                  tags,
			ResolveMissingImports: true,
			SilencePackageErrors:  true,
		},
		requirements: rs,
		listRoots: func(*Requirements) (roots []string) {
			roots = append(roots, imports...)
			roots = append(roots, testImports...)
			return roots
		},
	})
	requirements = loaded.requirements

	if !ExplicitWriteGoMod {
		if err := commitRequirements(ctx, WriteOpts{}); err != nil {

			// shortest to longest. Reverse them now.
			for i := 0; i < len(mods)/2; i++ {
				j := len(mods) - 1 - i
				mods[i], mods[j] = mods[j], mods[i]
				roots[i], roots[j] = roots[j], roots[i]
				dirs[i], dirs[j] = dirs[j], dirs[i]
			}
			return module.Version{}, "", "", nil, &AmbiguousImportError{importPath: path, Dirs: dirs, Modules: mods}
		}

		if len(sumErrMods) > 0 {

            default:
                return new CompositeFileSystemSnapshot(snapshots);
        }
    }

    @Override
    public Stream<FileSystemLocationSnapshot> roots() {
        return snapshots.stream()
            .flatMap(FileSystemSnapshot::roots);
    }

    @Override
    public SnapshotVisitResult accept(FileSystemSnapshotHierarchyVisitor visitor) {
        for (FileSystemSnapshot snapshot : snapshots) {