docs: public RingBuffer<T> start(final Executor executor)
      {
          if (!started.compareAndSet(false, true))
          {
              throw new IllegalStateException("WorkerPool has already been started and cannot be restarted until halted.");
          }
  
          final long cursor = ringBuffer.getCursor();
          workSequence.set(cursor);
  
          for (WorkProcessor<?> processor : workProcessors)
          {
              processor.getSequence().set(cursor);
              executor.execute(processor);
          }
  
          return ringBuffer;
      }