public void storePaths() {
      myPathsToExpand = new ArrayList<>();
      mySelectionPaths = new ArrayList<>();

      DefaultMutableTreeNode root = (DefaultMutableTreeNode)myTree.getModel().getRoot();

      TreePath path = new TreePath(root.getPath());
      if (myTree.isPathSelected(path)) {
        addPathToList(root, mySelectionPaths);
      }
      if (myTree.isExpanded(path) || root.getChildCount() == 0) {
        addPathToList(root, myPathsToExpand);
        _storePaths(root);
      }
    }
public void storePaths()