code: private static Object process(final RedisInputStream is) {
          byte b = is.readByte();
          if (b == MINUS_BYTE) {
              processError(is);
              return null;
          } else if (b == ASTERISK_BYTE) {
              return processMultiBulkReply(is);
          } else if (b == COLON_BYTE) {
              return processInteger(is);
          } else if (b == DOLLAR_BYTE) {
              return processBulkReply(is);
          } else if (b == PLUS_BYTE) {
              return processStatusCodeReply(is);
          } else {
              throw new JedisConnectionException("Unknown reply: " + (char) b);
          }
      }
docs: Process.
  
  @param is the is
  @return the object