How to use

DefaultSearchHandlerManager$IsShown

in

com.atlassian.jira.issue.search.managers

@Override
public Collection<IssueSearcher<?>> getSearchers(final ApplicationUser searcher, final SearchContext context)
{
  notNull("context", context);
  context.verify();
  return toList(filter(getAllSearchers(), new IsShown(searcher, context)));
}