public static void checkRequired(OptionSet options, String opt) throws VoldemortException {
        List<String> opts = Lists.newArrayList();
        opts.add(opt);
        checkRequired(options, opts);
    }
public static void checkRequired ( OptionSet options , String opt ) throws VoldemortException { List < String > opts = Lists . newArrayList ( ) ; opts . add ( opt ) ; checkRequired ( options , opts ) ; }
Checks if the required option exists.

@param options OptionSet to checked
@param opt Required option to check
@throws VoldemortException