}

    public String getName() {
        return currentPath.substring(sizeOfCommonPrefix + 1);
    }

    public boolean nextPath(String nextPath, boolean directory, Runnable exitDirectoryHandler) {
        currentPath = directory ? nextPath.substring(0, nextPath.length() - 1) : nextPath;
        String lastDirPath = directoryPaths.peekLast();
        sizeOfCommonPrefix = FilePathUtil.sizeOfCommonPrefix(lastDirPath, currentPath, 0, '/');

        boolean outsideOfRoot

        when:
        outsideOfRoot = parser.nextPath("tree-some/first/", true, exitHandler)
        then:
        0 * exitHandler.run()
        then:
        parser.name == "first"
        parser.relativePath == "first"
        !parser.root
        !outsideOfRoot

        when:
        outsideOfRoot = parser.nextPath("tree-some/first/file.txt", false, exitHandler)
        then:

	// corruption under full disk condition.
	// See https://github.com/kubernetes/kubernetes/issues/98989.
	err = os.WriteFile(v.nextPath(), []byte(vp.String()), 0666)
	if err != nil {
		return fmt.Errorf("failed to write new version file %s: %v", v.nextPath(), err)
	}
	return os.Rename(v.nextPath(), v.path)
}

func exists(path string) (bool, error) {
	if _, err := os.Stat(path); os.IsNotExist(err) {
		return false, nil