code: long getMinimumSequence(@Nullable RingBuffer.Sequence excludeSequence) {
  		return RingBuffer.getMinimumSequence(excludeSequence, gatingSequences, cursor.getAsLong());
  	}
docs: Get the minimum sequence value from all of the gating sequences
  added to this ringBuffer.
  
  @param excludeSequence to exclude from search
  @return The minimum gating sequence or the cursor sequence if
  no sequences have been added.