code: static <E> RingBuffer<E> createSingleProducer(Supplier<E> factory,
  			int bufferSize,
  			WaitStrategy waitStrategy) {
  		return createSingleProducer(factory, bufferSize, waitStrategy, null);
  	}
docs: Create a new single producer RingBuffer with the specified wait strategy.
  <p>See {@code MultiProducerRingBuffer}.
  @param <E> the element type
  @param factory used to create the events within the ring buffer.
  @param bufferSize number of elements to create within the ring buffer.
  @param waitStrategy used to determine how to wait for new elements to become available.
  @return the new RingBuffer instance