notification-portlet-webapp/src/main/java/org/jasig/portlet/notice/action/read/ReadAction.java
Set<String> getReadNotices(final PortletRequest req) {
        final HashSet<String> rslt = new HashSet<>();
        final PortletPreferences prefs = req.getPreferences();
        final String[] ids = prefs.getValues(READ_NOTIFICATION_IDS_PREFERENCE, new String[0]);
        for (int i=0; i < ids.length; i++) {
            rslt.add(ids[i]);
        }
        return rslt;
    }
Set<String> getReadNotices(final PortletRequest req) {
        final HashSet<String> rslt = new HashSet<>();
        final PortletPreferences prefs = req.getPreferences();
        final String[] ids = prefs.getValues(READ_NOTIFICATION_IDS_PREFERENCE, new String[0]);
        for (int i=0; i < ids.length; i++) {
            rslt.add(ids[i]);
        }
        return rslt;
    }
/* package-private