@NonNull
    public Comparator<? super Waypoint> getWaypointComparator() {
        return isGotoHistoryUDC() ? Waypoint.WAYPOINT_ID_COMPARATOR : Waypoint.WAYPOINT_COMPARATOR;
    }
Show the hint as toast message. If no hint is available, a default "no hint available" will be shown instead.
main/src/main/java/cgeo/geocaching/models/Geocache.java