logger.warn("Failed to process shutdown task.", e);
            }
        });
    }

    /**
     * Gets the username of the current user.
     *
     * @return The username, or "guest" if not logged in.
     */
    public String getUsername() {
        return getRequestManager().findUserBean(FessUserBean.class).map(FessUserBean::getUserId).orElse(Constants.GUEST_USER);
    }

    /**

        requestBody.put("num_of_thread", 1);
        requestBody.put("interval_time", 0); // No delay between file access
        requestBody.put("boost", 100);
        requestBody.put("permissions", "{role}guest");
        requestBody.put("available", true);
        requestBody.put("sort_order", 0);
        createFileConfig(requestBody);
    }

    private static void createJob() {

                "e6cc9514d288fff4553187be8800b54efe3229054b1acbf64d3132e1982162576113939c790e8d6f56e2fa0d6655ba520c44ad0b71adc4061cf6b42e975b4904",
                crawlingInfoHelper.generateId(dataMap));

        roleTypeList.add("guest");

        assertEquals(
                "dce588fe68813d59cce9a5b087f81d63406123492cb120027ca9ed765ba6501f7b07bb36569afd2fb7b10ac53c4a9a3764b0d7619a8059c071b1a20f8ae42fa3",
                crawlingInfoHelper.generateId(dataMap));

    default boolean isTargetPluginVersion(final String version) {
        final Pattern pattern;
        if (StringUtil.isBlank(getPluginVersionFilter())) {
            pattern = Pattern.compile("^" + Pattern.quote(ComponentUtil.getSystemHelper().getProductVersion()) + ".*");
        } else {
            pattern = Pattern.compile(getPluginVersionFilter());
        }
        return pattern.matcher(version).matches();
    }

        systemHelper.init();
        systemHelper.addShutdownHook(() -> {});
        ComponentUtil.register(systemHelper, "systemHelper");
    }

    @Test
    public void test_getUsername() {
        assertEquals("guest", systemHelper.getUsername());
    }

    @Test
    public void test_getCurrentTimeAsLocalDateTime() {
        final long current =

,"prevUntil","contentDocument","content","reverse","rnothtmlwhite","Identity","v","Thrower","ex","adoptValue","resolve","reject","noValue","method","promise","fail","then","Callbacks","object","_","flag","firing","memory","fired","locked","list","queue","firingIndex","fire","once","stopOnFalse","remove","disable","lock","fireWith","Deferred","func","tuples","state","always","deferred","catch","pipe","fns","newDefer","tuple","returned","progress","notify","onFulfilled","onRejected","onProgress","...

",LL:"D MMMM YYYY",LLL:"D MMMM YYYY H:mm",LLLL:"dddd, D MMMM YYYY H:mm"},calendar:{sameDay:"[azi la] LT",nextDay:"[m\xe2ine la] LT",nextWeek:"dddd [la] LT",lastDay:"[ieri la] LT",lastWeek:"[fosta] dddd [la] LT",sameElse:"L"},relativeTime:{future:"peste %s",past:"%s \xeen urm\u0103",s:"c\xe2teva secunde",ss:Yr,m:"un minut",mm:Yr,h:"o or\u0103",hh:Yr,d:"o zi",dd:Yr,w:"o s\u0103pt\u0103m\xe2n\u0103",ww:Yr,M:"o lun\u0103",MM:Yr,y:"un an",yy:Yr},week:{dow:1,doy:7}});var fr=[/^\u044f\u043d\u0432/i,/^\...