argList = new FlagArgument("list", Argument.OPTIONAL, help_list);
argSetLevel = new FlagArgument("setLevel", Argument.OPTIONAL, help_set_level);
argFile = new FileArgument("file", Argument.OPTIONAL, help_file);
argUrl = new URLArgument("url", Argument.OPTIONAL, help_url);
argLevel = new Log4jLevelArgument("level", Argument.OPTIONAL, help_level);
argLogger = new Log4jLoggerArgument("logger", Argument.OPTIONAL, help_logger);
registerArguments(argSetLevel, argList, argFile, argLevel, argLogger, argUrl);
}