HttpServletRequest request,</BUG>
TopicListRequest topicListForm,
HttpServletResponse response,
@Nullable Group group
) throws Exception {
<BUG>Section section = null;
if (topicListForm.getSection() != null && topicListForm.getSection()!=0) {
section = sectionService.getSection(topicListForm.getSection());
}</BUG>
checkRequestConditions(section, group, topicListForm);

private TopicListService topicListService;
@Autowired
private TopicPrepareService prepareService;
@Autowired
private GroupDao groupDao;
private ModelAndView mainTopicsFeedHandler(
Section section,
HttpServletRequest request,
TopicListRequest topicListForm,
HttpServletResponse response,
@Nullable Group group
) throws Exception {
checkRequestConditions(section, group, topicListForm);
