docs: public <T> List<T> getAll(Collection<String> urls) {
          destroyWhenExit = false;
          spawnUrl = false;
          if (startRequests!=null){
              startRequests.clear();
          }
          for (Request request : UrlUtils.convertToRequests(urls)) {
              addRequest(request);
          }
          CollectorPipeline collectorPipeline = getCollectorPipeline();
          pipelines.add(collectorPipeline);
          run();
          spawnUrl = true;
          destroyWhenExit = true;
          return collectorPipeline.getCollected();
      }