Java Utililty Methods Temp Directory Get

File file = new File("./img");
if (!file.exists()) {
    file.mkdir();
return file;

String defaultTmpDir = System.getProperty("java.io.tmpdir");
if (defaultTmpDir != null && new File(defaultTmpDir).exists()) {
    return defaultTmpDir;
} else {
    return System.getProperty("user.home");

String tempDir = System.getProperty("user.home");
try {
    File temp = File.createTempFile("A0393939", ".tmp");
    String absolutePath = temp.getAbsolutePath();
    tempDir = absolutePath.substring(0, absolutePath.lastIndexOf(File.separator));
} catch (IOException e) {
return tempDir;
...

return new File(System.getProperty("java.io.tmpdir") + File.separator + "iristk");

String tmpDirPath = "/tmp/";
if (null != tmpDirPath) {
    File result = new File(tmpDirPath);
    result.mkdirs();
    if (readableDirectory(result)) {
        return result;
return null;

String tempPath = System.getProperty("java.io.tmpdir");
try {
    tempPath = new java.io.File(tempPath).getCanonicalPath();
} catch (IOException e) {
return new Path(tempPath);

File tempDir = new File(BUFFER_DIR);
if (tempDir.exists())
    return tempDir;
tempDir.mkdir();
return tempDir;

File dir = null;
while (dir == null) {
    if (baseDir != null) {
        dir = new File(baseDir, UUID.randomUUID().toString());
    } else {
        dir = new File(UUID.randomUUID().toString());
    if (dir.exists()) {
...

int num = randomNumberGenerator.nextInt(Integer.MAX_VALUE);
File dir = new File(directory + File.separator + String.format("%s%06d", prefix, num));
while (dir.exists()) {
    num = randomNumberGenerator.nextInt(Integer.MAX_VALUE);
    dir = new File(directory + File.separator + String.format("%s%06d", prefix, num));
dir.mkdirs();
if (autodelete) {
...

return new File(TEMP_DIR, fileName).toURI().toString();