Java Coding Problems

A small number of time-consuming tasks

Instead of filling a queue with 15,000,000 bulbs, let's fill 15 queues with 1,000,000 bulbs each:

private static final int MAX_PROD_BULBS = 15 _000_000;private static final int CHUNK_BULBS = 1 _000_000;private static final Random rnd = new Random();private static final Queue<BlockingQueue<String>> chunks   = new LinkedBlockingQueue<>();...private static Queue<BlockingQueue<String>> simulatingProducers() {  logger.info("Simulating the job of the producers overnight ...");  logger.info(() -> "The producers checked "     + MAX_PROD_BULBS + " bulbs ...");  int counter = 0;  while (counter < MAX_PROD_BULBS) {    BlockingQueue chunk = new LinkedBlockingQueue<>(CHUNK_BULBS);    for (int i = 0; i < CHUNK_BULBS; i++) { chunk.offer("bulb-" ...