QueryTopUrls.java

public void process(ExecutorService executorService) {
    long startTime = System.currentTimeMillis();
    try (ExecutorService executor = executorService) {
        for (String url : getUrls()) {
            executor.execute(() -> {
                try {
                    new URL("https://" + url).getContent();
                    System.out.println("Finished processing: " + url);
                } catch (IOException e) {
                }
            });
        }
    }

    System.out.println("Processing time: " + (System.currentTimeMillis() - startTime)/1000.0f + " seconds");
}