}

    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());

		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 {

                roots == []
            }
            with(inputFileProperties.inputArtifact) {
                hash != null
                attributes == ['DIRECTORY_SENSITIVITY_DEFAULT', 'FINGERPRINTING_STRATEGY_ABSOLUTE_PATH', 'LINE_ENDING_SENSITIVITY_DEFAULT']
                with(Iterables.getOnlyElement(roots)) {
                    hash != null

        when:
        def directories = supplier.get()

        then:
        directories.isEmpty()
    }

    def "has default roots"() {
        given:
        def supplier = new LinuxInstallationSupplier()

        expect:
        supplier.roots.length > 1
    }

    def "supplies no installations for non-existing directory"() {
        given:

			}
			continue
		}

		roots = append(roots, r.Mod)
		if !r.Indirect {
			direct[r.Mod.Path] = true
		}
	}
	goVersion := gover.FromGoMod(modFile)
	var toolchain string
	if addToolchainRoot && modFile.Toolchain != nil {
		toolchain = modFile.Toolchain.Name
	}
	roots = appendGoAndToolchainRoots(roots, goVersion, toolchain, direct)
	return roots, direct
}

        }
    }

    @Override
    List<BuildOperationRecord> getRoots() {
        getTree().roots
    }

    List<BuildOperationRecord> getDanglingChildren() {
        new BuildOperationTreeFixture(BuildOperationTrace.readPartialTree(path)).roots.findAll { it.parentId != null }
    }

    @Override
    @SuppressWarnings("GrUnnecessaryPublicModifier")