Java Utililty Methods Root Directory Get

File ref = workingDirectory;
while (ref.getParentFile() != null && new File(ref.getParentFile(), POM_FILE).exists()) {
    ref = ref.getParentFile();
return ref;

final File roots[] = listRoots(new File(path));
for (int i = 0; i < roots.length; i++) {
    if (path.startsWith(roots[i].getPath())) {
        return roots[i].getPath();
return path;

File file = new File(path);
File[] roots = file.listRoots();
for (int i = 0; i < roots.length; i++)
    if (path.startsWith(roots[i].getPath()))
        return roots[i].getPath();
return path;

File currentDir = new File(".");
return currentDir.getCanonicalPath();

return getOmHome().getParentFile().getParentFile();

String rootDir = System.getProperty("user.home", ".");
File rootFile = new File(rootDir, ".autotest");
if (!rootFile.isDirectory()) {
    rootFile.mkdirs();
return rootFile;

File rootDir = new File(System.getProperty("user.dir"));
File parentPom = new File(rootDir.getParent(), "pom.xml");
while (parentPom.exists()) {
    rootDir = rootDir.getParentFile();
    parentPom = new File(rootDir.getParent(), "pom.xml");
return rootDir;

String userDir = System.getProperty(USER_DIR);
String rootDir = userDir.substring(0, userDir.indexOf(File.separator) + 1);
if (!rootDir.endsWith(File.separator)) {
    rootDir += File.separator;
return rootDir;

if (rootDir == null) {
    rootDir = new File(System.getProperty("java.io.tmpdir") + File.separator + ".dorado.tmp");
    if (!rootDir.exists()) {
        if (!rootDir.mkdirs()) {
            throw new IOException("Make directory \"" + rootDir.getAbsolutePath() + "\" failed.");
    } else if (!rootDir.isDirectory()) {
        throw new IOException("\"" + rootDir.getAbsolutePath() + "\" is not a directory.");
...

String os = System.getProperty("os.name").toUpperCase();
if (os.contains("WIN")) {
    return new File(System.getenv("APPDATA"), "routeKIT");
} else if (os.contains("MAC")) {
    return new File(new File(new File(System.getProperty("user.home"), "Library"), "Application Support"),
            "routeKIT");
} else if (os.matches(".*N[IU]X.*")) {
    return new File(new File(System.getProperty("user.home"), ".config"), "routeKIT");
...