How to send N get requests in parallel and wait for all responses?

Question

Java

You need to make a bunch of requests to a third-party service, and consistently it takes a long time.
Is there anything else besides separate threads? Ideally it would be like js - asynchronously.

Answer 1

This seems to be true:

urls.parallelStream().forEach(u ->
    {
      LOG.debug("Page: " + u + usersResponse.pages.total_pages);
      try
      {
        String r = <Send getRequest>
      }
      catch (Exception e)
      {
        LOG.error(e);
      }
    });

Answer 2

RxJava + OkHttp? )