Java Utililty Methods Temp Folder Create

File f = new File(baseDirectory, UUID.randomUUID().toString());
if (f.mkdirs() == false) {
    throw new IOException(
            MessageFormat.format("error occurred while creating a temporary directory: {0}", f));
return f;

if (tempFolder == null) {
    tempFolder = File.createTempFile("temp", Long.toString(System.nanoTime()));
    if (!tempFolder.delete()) {
        throw new IOException("Could not delete temp file: " + tempFolder.getAbsolutePath());
    if (!tempFolder.mkdir()) {
        throw new IOException("Could not create temp directory: " + tempFolder.getAbsolutePath());
    tempFolder.deleteOnExit();
return tempFolder;

if (tempFolder == null) {
    synchronized (LOCK) {
        if (tempFolder == null) {
            try {
                File tempFile = File.createTempFile("IOUtil", "tmp");
                tempFolder = tempFile.getParentFile();
                tempFile.delete();
            } catch (IOException ex) {
...

String osname = System.getProperty("os.name").toLowerCase();
File ff = null;
if (osname.startsWith("windows") || System.getProperty("file.separator").equals("\\")
        || osname.startsWith("os/2")) {
    ff = new File("\\tmp", "");
    if (ff == null || !ff.exists())
        ff = new File("\\temp", "");
    if (ff == null || !ff.exists())
...

return new File(System.getProperty("java.io.tmpdir"), TEST_CASES_LOCATION); 

File tempFolder = new File(System.getProperty("user.dir") + "\\temp");
if (!tempFolder.exists()) {
    tempFolder.mkdirs();
return tempFolder.getPath() + File.separator;

File tempFolder = File.createTempFile(TEMP_FOLDER_NAME, null);
tempFolder.delete();
tempFolder.mkdirs();
if (!tempFolder.exists()) {
    throw new IOException("Failed to create temporary jar file when packaging application for deployment: "
            + tempFolder.getAbsolutePath());
return tempFolder;
...

String tempPath = System.getProperty("java.io.tmpdir");
if (tempPath.endsWith(Character.toString(File.separatorChar))) {
    tempPath = tempPath.substring(0, tempPath.length() - 1);
return tempPath;

return File.createTempFile("tmp", null).getParent();

return System.getProperty("java.io.tmpdir");