docs: public static List<String> trimIt(String[] strings) {
  		if (strings == null || strings.length == 0) {
  			return null;
  		}
  
  		List<String> results = new ArrayList<String>();
  
  		for (int i = 0; i < strings.length; i++) {
  			String result = trimIt(strings[i]);
  			if (result != null) {
  				results.add(result);
  			}
  		}
  
  		if (results.size() > 0) {
  			return results;
  		} else {
  			return null;
  		}
  	}