code: private void createTempFile() throws IOException {
          _tempfilef = File.createTempFile("org.browsermob.proxy.jetty.util.TempByteHolder-",".tmp",_temp_directory).getCanonicalFile();
          _tempfilef.deleteOnExit();
          _tempfile = new RandomAccessFile(_tempfilef,"rw");
      }
docs: Create tempfile if it does not already exist