code: public static String parametersToString(Object... objs) {
      StringBuilder sb = new StringBuilder("(");
      if (objs != null) {
        for (int k = 0; k < objs.length; k++) {
          if (k != 0) {
            sb.append(", ");
          }
          if (objs[k] == null) {
            sb.append("null");
          } else {
            sb.append(objs[k].toString());
          }
        }
      }
      sb.append(")");
      return sb.toString();
    }
docs: Parses a list of {@code Objects} into a {@code String}.
  
  @param objs a list of Objects to convert to a String
  @return comma-separated concatenation of the string representation returned by Object#toString
  of the individual objects