docs: public void park(BlockingOperation op) {
          long timeout = op.getWaitTimeout();
          WaitSetEntry entry = new WaitSetEntry(queue, op);
          entry.setNodeEngine(nodeEngine);
          queue.offer(entry);
          if (timeout > -1 && timeout < TIMEOUT_UPPER_BOUND) {
              delayQueue.offer(entry);
          }
      }