object : ForwardingFileSystem(fileSystem) {
      override fun sink(
        file: Path,
        mustCreate: Boolean,
      ): Sink {
        file.parent?.let {
          createDirectories(it)
        }
        return super.sink(file, mustCreate)
      }
    }

  /** The maximum number of bytes that this cache should use to store its data. */
  @get:Synchronized @set:Synchronized

        // Test that Files.createDirectories works correctly for nested paths
        Path tempDir = Files.createTempDirectory("toctou_test");
        try {
            Path nestedPath = tempDir.resolve("level1").resolve("level2").resolve("level3");
            assertFalse(Files.exists(nestedPath));

            Files.createDirectories(nestedPath);

            assertTrue(Files.exists(nestedPath));

                """;
        Path dotMvn = cwd.resolve(".mvn");
        Files.createDirectories(dotMvn);
        Path projectExtensions = dotMvn.resolve("extensions.xml");
        Files.writeString(projectExtensions, extensionsXml);

        Path userConf = userHome.resolve(".m2");
        Files.createDirectories(userConf);
        Path userExtensions = userConf.resolve("extensions.xml");

        void shouldNotOverwriteExistingMvnDirectory() throws Exception {
            Path projectDir = tempDir.resolve("project");
            Files.createDirectories(projectDir);

            Path mvnDir = projectDir.resolve(".mvn");
            Files.createDirectories(mvnDir);
            Path existingFile = mvnDir.resolve("existing.txt");
            Files.writeString(existingFile, "existing content");

                        Files.createDirectories(path.getParent());
                        Files.copy(zis, path, StandardCopyOption.REPLACE_EXISTING);
                    } else if ("css".equals(names[0])) {
                        names[0] = themeName;
                        final Path path = ResourceUtil.getCssPath(names);
                        Files.createDirectories(path.getParent());

        tempDir = Files.createTempDirectory("theme-test");
        Files.createDirectories(Paths.get("target", "fess", "WEB-INF", "view"));
        Files.createDirectories(Paths.get("target", "fess", "WEB-INF", "plugin"));
        Files.createDirectories(Paths.get("target", "fess", "images"));
        Files.createDirectories(Paths.get("target", "fess", "css"));
        Files.createDirectories(Paths.get("target", "fess", "js"));
    }

    @Override

        super.setUp(testInfo);
        tempDir = Files.createTempDirectory("fess_admin_test");
        varDir = Files.createDirectories(tempDir.resolve("var"));
        webappDir = Files.createDirectories(tempDir.resolve("webapp"));
        confDir = Files.createDirectories(tempDir.resolve("conf"));
    }

    @Override
    protected void tearDown(TestInfo testInfo) throws Exception {

        // Test that Files.createDirectories creates nested directories atomically
        Path tempDir = Files.createTempDirectory("toctou_cmd_test");
        try {
            Path nestedPath = tempDir.resolve("a").resolve("b").resolve("c");
            assertFalse(Files.exists(nestedPath));

            Files.createDirectories(nestedPath);

            assertTrue(Files.exists(nestedPath));

            throws Exception {
        Files.createDirectories(cwd.resolve(".mvn"));
        Path pom = cwd.resolve("pom.xml").toAbsolutePath();
        Files.writeString(pom, POM_STRING);
        Path appJava = cwd.resolve("src/main/java/org/apache/maven/samples/sample/App.java");
        Files.createDirectories(appJava.getParent());
        Files.writeString(appJava, APP_JAVA_STRING);

        // here and be safe. jvz.
        // ----------------------------------------------------------------------------

        try {
            Files.createDirectories(destination.toPath().getParent());
            Files.copy(file.toPath(), destination.toPath());
        } catch (IOException e) {