for (long i = 0; i < 20; i++) {
unclassified.add(i);
}
final ScheduledExecutorService serviceScheduler = Executors.newSingleThreadScheduledExecutor();
final Client restLiClient = new ClientImpl(serviceScheduler);
final int numCores = Runtime.getRuntime().availableProcessors();
final ScheduledExecutorService scheduler = Executors.newScheduledThreadPool(numCores + 1);
final Engine engine = new EngineBuilder()
.setTaskExecutor(scheduler)