@Override
    public boolean equals(final Object o) {
        if (!(o instanceof GeoGroup)) {
            return false;
        }
        final GeoGroup other = (GeoGroup) o;
        return
            Objects.equals(items, other.items);
    }
Represents a group of drawable GeoItem such as a point, polyline, polygon or enclosed groups
main/src/main/java/cgeo/geocaching/models/geoitem/GeoGroup.java