question: private ArrayList < URLCrawlDatum > readContents ( Path fetchlist ) throws IOException { SequenceFile . Reader reader = new SequenceFile . Reader ( fs , fetchlist , conf ) ; ArrayList < URLCrawlDatum > l = new ArrayList < URLCrawlDatum > ( ) ; READ : do { Text key = new Text ( ) ; CrawlDatum value = new CrawlDatum ( ) ; if ( ! reader . next ( key , value ) ) { break READ ; } l . add ( new URLCrawlDatum ( key , value ) ) ; } while ( true ) ; reader . close ( ) ; return l ; }
target:  Read contents of fetchlist.