def saveAsNewAPIHadoopFile(

      path: String,       keyClass: Class[_],       valueClass: Class[_],       outputFormatClass: Class[_ <: NewOutputFormat[_, _]],       conf: Configuration = self.context.hadoopConfiguration): Unit = self.withScope {     // Rename this as hadoopConf internally to avoid shadowing (see SPARK-2038).     val hadoopConf = conf     val job = NewAPIHadoopJob.getInstance(hadoopConf)     job.setOutputKeyClass(keyClass)     job.setOutputValueClass(valueClass)     job.setOutputFormatClass(outputFormatClass)     val jobConfiguration = job.getConfiguration     jobConfiguration.set("mapreduce.output.fileoutputformat.outputdir", path)     saveAsNewAPIHadoopDataset(jobConfiguration)   }