public static File tempFile(final String prefix, final String suffix) throws IOException {
        final File file = Files.createTempFile(prefix, suffix).toFile();
        file.deleteOnExit();
        return file;
    }
Create an empty file in the default temporary-file directory, using the given prefix and suffix
to generate its name.
@throws IOException
clients/src/test/java/org/apache/kafka/test/TestUtils.java