private void createNodesGroupedByType(
     CheckedTreeNode root, final List<? extends DetectedFrameworkDescription> frameworks) {
   Map<FrameworkType, FrameworkTypeNode> groupNodes = new HashMap<>();
   for (DetectedFrameworkDescription framework : frameworks) {
     final FrameworkType type = framework.getDetector().getFrameworkType();
     FrameworkTypeNode group = groupNodes.get(type);
     if (group == null) {
       group = new FrameworkTypeNode(type);
       groupNodes.put(type, group);
       root.add(group);
     }
     group.add(new DetectedFrameworkNode(framework, myContext));
   }
 }