docs: static public String listToJSONString(List<?> list) {
  		if (list == null || list.size() == 0) {
  			return "[]";
  		}
  		StringBuilder sb = new StringBuilder("[");
  		for (Object o : list) {
  			buildAppendString(sb, o).append(',').append(' ');
  		}
  		return sb.delete(sb.length() - 2, sb.length()).append(']').toString();
  	}