private void createNodesGroupedByDirectory(CheckedTreeNode root, final List<? extends DetectedFrameworkDescription> frameworks) {
    Map<VirtualFile, FrameworkDirectoryNode> nodes = new HashMap<>();
    List<DetectedFrameworkNode> externalNodes = new ArrayList<>();
    for (DetectedFrameworkDescription framework : frameworks) {
      VirtualFile parent = VfsUtil.getCommonAncestor(framework.getRelatedFiles());
      if (parent != null && !parent.isDirectory()) {
        parent = parent.getParent();
      }

      final DetectedFrameworkNode frameworkNode = new DetectedFrameworkNode(framework, myContext);
      if (parent != null) {
        createDirectoryNodes(parent, nodes).add(frameworkNode);
      }
      else {
        externalNodes.add(frameworkNode);
      }
    }
    List<FrameworkDirectoryNode> rootDirs = new ArrayList<>();
    for (FrameworkDirectoryNode directoryNode : nodes.values()) {
      if (directoryNode.getParent() == null) {
        rootDirs.add(directoryNode);
      }
    }
    for (FrameworkDirectoryNode dir : rootDirs) {
      root.add(collapseDirectoryNode(dir));
    }
    for (DetectedFrameworkNode node : externalNodes) {
      root.add(node);
    }
  }
private void createNodesGroupedByDirectory(CheckedTreeNode root, final List<? extends DetectedFrameworkDescription> frameworks)