Remove keys from output files in MR

E.g.

public class WordCount {       public static void main(String[] args) throws Exception {         JobConf conf = new JobConf(WordCount.class);         conf.setOutputKeyClass(Text.class);         conf.setOutputValueClass(Text.class);         conf.setOutputFormat(CustomMultipleTextOutputFormat.class);         FileInputFormat.setInputPaths(conf, new Path(args[0]));         FileOutputFormat.setOutputPath(conf, new Path(args[1]));         JobClient.runJob(conf);     } }   class CustomMultipleTextOutputFormat extends MultipleTextOutputFormat<Object, Object> {     protected Object generateActualKey(Object key, Object value) {         return NullWritable.get();     } }