public QFileClientBuilder setJdbcUrl(String jdbcUrl) {
      this.jdbcUrl = jdbcUrl;
      return this;
    }
Builder to generated QFileBeeLineClient objects. The after initializing the builder, it can be
used to create new clients without any parameters.
itests/util/src/main/java/org/apache/hive/beeline/QFileBeeLineClient.java