},

	// #14: roots can exclude subtrees and that doesn't affect other names.
	{
		roots: []constraintsSpec{
			{
				bad: []string{"dns:.example.com"},
			},
		},
		intermediates: [][]constraintsSpec{
			{
				{},
			},
		},
		leaf: leafSpec{
			sans: []string{"dns:foo.com"},
		},
	},

	// #15: roots exclusions are effective.
	{
		roots: []constraintsSpec{
			{

        }
    }

    private fun getVirtualFileUrlsForLibraryRootsRecursively(
        roots: Collection<Path>,
        environment: KotlinCoreProjectEnvironment,
    ): Set<String> =
        buildSet {
            for (root in getVirtualFilesForLibraryRoots(roots, environment)) {
                LibraryUtils.getAllVirtualFilesFromRoot(root, includeRoot = true)
                    .mapTo(this) { it.url }
            }
        }

import kotlin.io.path.extension

/**
 * Collect source file path as [String] from the given source roots in [compilerConfig].
 *
 * Such source roots are either [KotlinSourceRoot] or [JavaSourceRoot], and thus
 * this util collects all `.kt` and `.java` files under source roots.
 */
internal fun getSourceFilePaths(
    compilerConfig: CompilerConfiguration,
    includeDirectoryRoot: Boolean = false,

            throw UnsupportedOperationException()

        override fun visitFileTree(root: File, patterns: PatternSet, fileTree: FileTreeInternal) {
            roots.add(DirectoryTreeSpec(root, patterns))
        }

        override fun visitFileTreeBackedByFile(file: File, fileTree: FileTreeInternal, sourceTree: FileSystemMirroringFileTree) {
            roots.add(toSpec(sourceTree))
        }
    }

    private

		log.Infof("Use roots from %v and watch", fileBundle.RootCertFile)

		caBundle = s.CA.GetCAKeyCertBundle().GetRootCertPem()
		// Similar code to istio-ca-secret: refresh the root cert, but in casecrets
		s.addStartFunc("istiod server certificate rotation", func(stop <-chan struct{}) error {
			go func() {
				// regenerate istiod key cert when root cert changes.
				s.watchRootCertAndGenKeyCert(stop)

		}
		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()

     * tries to step beyond the file system root, the root is returned.
     */
    public static File normalize(File src) {
        String path = src.getAbsolutePath();
        String normalizedPath = FilenameUtils.normalizeNoEndSeparator(path);
        if (normalizedPath != null) {
            return new File(normalizedPath);
        }
        File root = src;
        File parent = root.getParentFile();

        // Roots
        mavenRepo.module('org.test', 'excludingRoot', '1.0').dependsOn(firstAligned, exclusions: [[group: 'org.test', module: 'excluded']]).publish()
        mavenRepo.module('org.test', 'root2', '1.0').dependsOn(intermediate3).publish()
        mavenRepo.module('org.test', 'root3', '1.0').dependsOn(otherAligned).publish()

        buildFile << """

			}
			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
}

	}

	// Will use TLS unless the reserved 15010 port is used ( istiod on an ipsec/secure VPC)
	// rootCert may be nil - in which case the system roots are used, and the CA is expected to have public key
	// Otherwise assume the injection has mounted /etc/certs/root-cert.pem
	return citadel.NewCitadelClient(opts, tlsOpts)
}

func init() {
	providers["Citadel"] = createCitadel
}