// not a valid code point; let the JDK handle invalid Unicode
            return hashBytes(input.toString().getBytes(charset));
          }
          i++;
          buffer |= codePointToFourUtf8Bytes(codePoint) << shift;
          if (supplementaryPlaneFix) { // bug compatibility: earlier versions did not have this add
            shift += 32;
          }
          len += 4;
        }