} catch (final IOException e) {
                    logger.debug("I/O exception while reading process command.", e);
                }
            }, "ProcessCommand");
            commandThread.start();

            systemMonitorTask = TimeoutManager.getInstance()
                    .addTimeoutTarget(new SystemMonitorTarget(), ComponentUtil.getFessConfig().getCrawlerSystemMonitorIntervalAsInteger(),

                                    </c:if>
                                    <c:if test="${!running && enabled}">
                                        <button type="submit" class="btn btn-success" name="start"
                                                value="<la:message key="labels.scheduledjob_button_start" />">
                                            <i class="fa fa-play-circle" aria-hidden="true"></i>

            for (int i = 0; i < 100; i++) {
                execJob.jvmOptions("-Xms" + i + "m");
            }
            latch.countDown();
        });

        t1.start();
        t2.start();

        assertTrue(latch.await(5, TimeUnit.SECONDS));
        // The exact size may vary due to concurrent modifications, just check it's not empty
        assertTrue(execJob.jvmOptions.size() > 0);
    }

    /** Info map key for web/file system crawler start time. */
    public static final String WEB_FS_CRAWLER_START_TIME = "WebFsCrawlStartTime";

    /** Info map key for web/file system crawler end time. */
    public static final String WEB_FS_CRAWLER_END_TIME = "WebFsCrawlEndTime";

    /** Info map key for data crawler start time. */
    public static final String DATA_CRAWLER_START_TIME = "DataCrawlStartTime";

         */
        public JvmClassesObj() {
            // Default constructor
        }

        /** Currently loaded classes */
        public long loaded;
        /** Total classes loaded since JVM start */
        public long total_loaded;
        /** Total classes unloaded */
        public long unloaded;
    }

    /**
     * Data transfer object representing process statistics.
     */

    public void addFilter(final Filter filter) {
        filterList.add(filter);
        createFilterChain();
    }

    /**
     * Creates the filter chain by combining all registered filters.
     * The chain starts with the default filter chain and appends each registered filter.
     */
    protected void createFilterChain() {
        FilterChain chain = createDefaultFilterChain();
        for (final Filter element : filterList) {

        getAvailableBoostDocumentRuleList().forEach(rule -> {
            indexUpdater.addDocBoostMatcher(new org.codelibs.fess.indexer.DocBoostMatcher(rule));
        });
        indexUpdater.start();

        int startedCrawlerNum = 0;
        int activeCrawlerNum = 0;
        try {
            while (startedCrawlerNum < crawlerList.size()) {
                // Force to stop crawl

        chatApiManager.sendSseEvent(writer, "phase", Map.of("phase", "search", "status", "start", "message", "Searching documents"));

        final String output = stringWriter.toString();
        assertTrue(output.contains("event: phase"));
        assertTrue(output.contains("\"phase\":\"search\""));
        assertTrue(output.contains("\"status\":\"start\""));
        assertTrue(output.contains("\"message\":\"Searching documents\""));
    }

When defining conventions for a property, there are largely three approaches:
1. Do not set a convention at all
2. Set a convention in a plugin

stop.\n@mixin gradient-y($start-color: $gray-700, $end-color: $gray-800, $start-percent: 0%, $end-percent: 100%) {\n  background-image: linear-gradient(to bottom, $start-color $start-percent, $end-color $end-percent);\n  background-repeat: repeat-x;\n}\n\n@mixin gradient-directional($start-color: $gray-700, $end-color: $gray-800, $deg: 45deg) {\n  background-image: linear-gradient($deg, $start-color, $end-color);\n  background-repeat: repeat-x;\n}\n@mixin gradient-x-three-colors($start-color: $blue, $mid-color:...