Java Utililty Methods Random Temp File

String tempName = UUID.randomUUID().toString().replaceAll("-", "");
File tempFile = new File(System.getProperty(JAVA_IO_TMP_DIR) + tempName + ".tmp");
if (!tempFile.createNewFile()) {
 throw new IOException("Can not create temp file :" + tempFile.getParent());
return tempFile;

return new File(System.getProperty("java.io.tmpdir"),
 Strings.nullToEmpty(prefix) + UUID.randomUUID().toString() + Strings.nullToEmpty(suffix));

String randomName = String.valueOf(System.currentTimeMillis());
return new File(getSystemTmpFolder(), randomName);