public Collection<GraphEdge> getAddedEdges() {
      Set<GraphEdge> result = getDottedEdges().getEdges();
      result.removeAll(ContainerUtil.filter(getHiddenEdges().getEdges(), graphEdge -> graphEdge.getType() == GraphEdgeType.DOTTED));
      result.removeAll(myLinearGraph.getDottedEdges().getEdges());
      return result;
    }
public Collection<GraphEdge> getAddedEdges()