@Test
    public void test_getForumLink() {
        getMockRequest().setLocale(Locale.ENGLISH);
        assertEquals("https://discuss.codelibs.org/c/FessEN/", systemHelper.getForumLink());
        getMockRequest().setLocale(Locale.JAPANESE);
        assertEquals("https://discuss.codelibs.org/c/FessJA/", systemHelper.getForumLink());
        getMockRequest().setLocale(Locale.ITALIAN);

            return false;
        }

        @Override
        public void reset() {
        }

        @Override
        public void setLocale(java.util.Locale loc) {
        }

        @Override
        public java.util.Locale getLocale() {
            return java.util.Locale.getDefault();
        }
    }

    private static class TestFilterChain implements FilterChain {

            }

            @Override
            public void reset() {
            }

            @Override
            public void setLocale(java.util.Locale loc) {
            }

            @Override
            public java.util.Locale getLocale() {
                return null;
            }
        };

        corsHandler.process(testOrigin, request, response);

            }

            @Override
            public void reset() {
            }

            @Override
            public void setLocale(java.util.Locale loc) {
            }

            @Override
            public java.util.Locale getLocale() {
                return null;
            }

            @Override

            return false;
        }

        @Override
        public void reset() {
        }

        @Override
        public void setLocale(java.util.Locale loc) {
        }

        @Override
        public java.util.Locale getLocale() {
            return java.util.Locale.getDefault();
        }
    }

    private static class TestFilterChain implements FilterChain {

        final FessMessages messages = new FessMessages();
        validationMessagesLambda.message(messages);
        return messageManager.toMessageList(request.getLocale() == null ? Locale.ENGLISH : request.getLocale(), messages)
                .stream()
                .collect(Collectors.joining(" "));
    }

    /**

            // Label type items for filter UI
            final List<Map<String, String>> labelTypeItems = labelTypeHelper.getLabelTypeItemList(SearchRequestType.SEARCH,
                    request.getLocale() == null ? Locale.ROOT : request.getLocale());
            RenderDataUtil.register(data, "labelTypeItems", labelTypeItems);
            RenderDataUtil.register(data, "displayLabelTypeItems", labelTypeItems != null && !labelTypeItems.isEmpty());

        try {
            final List<Map<String, String>> labelTypeItems = labelTypeHelper.getLabelTypeItemList(SearchRequestType.JSON,
                    request.getLocale() == null ? Locale.ROOT : request.getLocale());
            buf.append("\"record_count\":");
            buf.append(labelTypeItems.size());
            if (!labelTypeItems.isEmpty()) {
                buf.append(',');

            }

            @Override
            public Object getAttribute(String name) {
                return null;
            }

            @Override
            public Locale getLocale() {
                return null;
            }

            @Override
            public SearchRequestType getType() {
                return null;
            }

            @Override

        final List<Map<String, String>> labelTypeItems = labelTypeHelper.getLabelTypeItemList(SearchRequestType.SEARCH,
                request.getLocale() == null ? Locale.ROOT : request.getLocale());
        runtime.registerData("labelTypeItems", labelTypeItems);
        runtime.registerData("displayLabelTypeItems", labelTypeItems != null && !labelTypeItems.isEmpty());