"Method of processing: sequential|mapreduce").withShortName("method").create();
    Option encodingOpt = obuilder.withLongName("encoding").withArgument(
      abuilder.withName("encoding").withMinimum(1).withMaximum(1).create()).withDescription(
      "(Optional) The file encoding.  Default value: UTF-8").withShortName("e").create();
    
    Group group = gbuilder.withName("Options").withOption(minSupportOpt).withOption(inputDirOpt).withOption(
      outputOpt).withOption(maxHeapSizeOpt).withOption(numGroupsOpt).withOption(methodOpt).withOption(
      encodingOpt).withOption(helpOpt).withOption(treeCacheOpt).withOption(recordSplitterOpt).create();
    try {
      Parser parser = new Parser();
      parser.setGroup(group);