def unreadableDir = outputDir.get().dir("unreadable").asFile
                    unreadableDir.mkdirs()
                    assert unreadableDir.setReadable(false)
                    assert !unreadableDir.canRead()
                }
            }
        """
    }

    static generateConsumerTask(boolean untracked) {
        """
            ${untracked ? "@UntrackedTask(because = 'For testing')" : ""}

                this.managedVersions = ArtifactUtils.copyArtifacts(managedVersions, new LinkedHashMap<>());
            }

            File pomFile = pomArtifact.getFile();
            if (pomFile != null && pomFile.canRead()) {
                this.length = pomFile.length();
                this.timestamp = pomFile.lastModified();
            } else {
                this.length = -1;
                this.timestamp = -1;
            }

        try {
            final DaemonContext daemonContext = daemon.getDaemonContext();
            final File daemonRegistryDir = daemonContext.getDaemonRegistryDir();
            if (!new DaemonDir(daemonRegistryDir).getRegistry().canRead()) {
                LOG.warn("Daemon registry {} became unreadable. Expiring daemon.", daemonRegistryDir);
                return new DaemonExpirationResult(GRACEFUL_EXPIRE, REGISTRY_BECAME_UNREADABLE);
            } else {

        try {
            Assert.assertTrue("$dir exists", dir.exists())
            Assert.assertTrue("$dir is a directory", dir.isDirectory())
            Assert.assertFalse("$dir is not readable", dir.canRead())
            Assert.assertTrue("$dir is writable", dir.canWrite())

            testFile('build.gradle') << '''
                task copy(type: Copy) {
                    from 'src'
                    into 'dest'

                Properties props = new Properties();

                channel = new RandomAccessFile(touchfile, "rw").getChannel();
                lock = channel.lock();

                if (touchfile.canRead()) {
                    getLogger().debug("Reading resolution-state from: " + touchfile);
                    props.load(Channels.newInputStream(channel));
                }

                    }
                }
            }
        } else {
            File pluginXml = new File(extensionJar, getExtensionDescriptorLocation());

            if (pluginXml.canRead()) {
                try (InputStream is = Files.newInputStream(pluginXml.toPath())) {
                    extensionDescriptor = build(is);
                }
            }
        }

            if (!directory.isDirectory()) {
                throw new IllegalArgumentException(String.format("Cache directory %s must be a directory", directory));
            }
            if (!directory.canRead()) {
                throw new IllegalArgumentException(String.format("Cache directory %s must be readable", directory));
            }
            if (!directory.canWrite()) {

            for (String fileName : fileNames) {
                File candidate = new File(fileName);
                if (candidate.isFile() && candidate.canRead()) {
                    storePath = fileName;
                    break;
                } else if (!fileName.equals(getDefaultJsseTrustStore())) {

            PatternStep step = PatternStepFactory.getStep(segment, false);
            File[] children = file.listFiles();
            if (children == null) {
                if (!file.canRead()) {
                    throw new GradleException(String.format("Could not list contents of directory '%s' as it is not readable.", file));
                }

                responseData.setCharSet(geCharSet(file));
                responseData.setLastModified(new Date(file.lastModified()));
                if (file.canRead()) {
                    final MimeTypeHelper mimeTypeHelper = crawlerContainer.getComponent("mimeTypeHelper");
                    try (final InputStream is = new BufferedInputStream(new FileInputStream(file))) {