final String value = System.getProperty("fess.log.path");
        if (value != null) {
            return value;
        }
        final String userDir = System.getProperty("user.dir");
        final File targetDir = new File(userDir, "target");
        return new File(targetDir, "logs").getAbsolutePath();
    }

    /**
     * Encodes a URL path for filtering.
     *

lej,?xednay:.e&garots,tisbew,?,??e&c&narusnihtlaehezitavirp,rofelacs.j,?gde&eruza,iamaka,?ht-no-eciffo,l&acsnoom,ibom-eruza,?m&antenym.ns,ecnuob,itnuroieboda,ohtanyd,tcerider,?n&ilno-evreser,ozdop,?r&alfduolc:.ndc,,ehurht,?s:abapus,,ti&s-repparcs,usegde,?zam&aym,kcar,??f&aeletis,crs.&cos,resu,?ehc-a-si,fgg,?g&ni&gats-&d&eziamaka,hiamaka,?e&gdeiamaka,tiusegde,?iamaka,nigiroiamaka,yekegde,?reesnes,sirkcilc,?olbevres,?hsadtob,i&amaka,nayul,pa-eruza,?k&catsvano,eeg-a&-si,si,?u,?l&a&bolgeralfduolc.nd...