private static void Pause(String description) throws Exception {
   Singletons.Log.Debug(
       "Pausing for "
           + Settings.PAUSE_SECONDS
           + " seconds: "
           + description
           + ". Other threads may be processing these tasks.");
   MiscUtilities.Sleep(Settings.PAUSE_SECONDS * 1000);
   Singletons.Log.Debug("Done with pause: " + description + ".");
 }
  /**
   * Executes multiple callable objects in a multithreaded fashion
   *
   * @return Objects that are returned from each _callable object
   * @throws Exception
   */
  public ArrayList Execute() throws Exception {
    if (_callables == null || _callables.size() == 0) return new ArrayList();

    Singletons.Log.Debug(
        "Attempting to share execution across "
            + _numThreads
            + " threads for "
            + _description
            + ".");

    // Initialize the service
    // ExecutorService service = Executors.newFixedThreadPool(_numThreads);
    ExecutorService service = new TimeoutThreadPoolExecutor(_numThreads);

    try {
      ArrayList<Future<Object>> futures = new ArrayList<Future<Object>>();

      // Submit each task to a queue to be executed
      for (Callable<Object> callable : _callables) futures.add(service.submit(callable));

      ArrayList results = new ArrayList();

      // Parse through the results of the execution
      for (Future<Object> future : futures) {
        Object result = future.get();

        if (result != null) results.add(result);
      }

      return results;
    } catch (Exception ex) {
      throw ex;
    } finally {
      // Very important to shut down the service
      service.shutdown();
    }
  }