public boolean cleanup() throws IOException {
  FileSystem fileSystem=FileSystem.get(config);
  boolean success=true;
  for (  Path file : files) {
    success&=fileSystem.delete(file,false);
  }
  return success;
}

public boolean cleanup ( ) throws IOException { FileSystem fileSystem = FileSystem . get ( config ) ; boolean success = true ; for ( Path file : files ) { success &= fileSystem . delete ( file , false ) ; } return success ; }
cleans up all files read by this iterable
