Thank you very much Edward for your help. The solution was to create temporary directory and place files there:
final File temp = File.createTempFile("temp", Long.toString(System.nanoTime())); if (!(temp.delete())) { throw new IOException("Could not delete temp file: " + temp.getAbsolutePath()); } if (!(temp.mkdir())) { throw new IOException("Could not create temp directory: " + temp.getAbsolutePath()); }