public void invalidateAll(final int exceptOverlay) {
        if (wpOverlay != null) {
            wpOverlay.invalidateAll();
        }
        if (baseOverlay != null && exceptOverlay != BASE_OVERLAY_ID) {
            baseOverlay.invalidateAll();
        }
        if (storedOverlay != null && exceptOverlay != STORED_OVERLAY_ID) {
            storedOverlay.invalidateAll();
        }
        if (liveOverlay != null && exceptOverlay != LIVE_OVERLAY_ID) {
            liveOverlay.invalidateAll();
        }
        if (wpOverlay != null) {
            wpOverlay.invalidateAll();
        }
    }
Forces redraw of all cache layers (e.g. for icon change)
main/src/main/java/cgeo/geocaching/maps/mapsforge/v6/caches/CachesBundle.java