code: protected static String[] parseWords(final String s) {
  		
  		String s1 = s.trim();
  		
  		if (s1.isEmpty())
  			return new String[]{};
  		else
  			return s1.split("\\s*,\\s*|\\s+");
  	}
docs: Parses a string containing words separated by space and/or comma.
  
  @param s The string to parse. Must not be {@code null}.
  
  @return An array of the parsed words, empty if none were found.