docs: public synchronized void removeElement(T element) {
  		List<T> origList = ref.get().list;
  		boolean isPresent = origList.contains(element);
  		if (!isPresent) {
  			return;
  		}
  		
  		List<T> newList = new ArrayList<T>(origList);
  		newList.remove(element);
  		
  		swapWithList(newList);
  	}