public TreeItem<ITreeNode> toTreeItems() {
final TreeItem<ITreeNode> result = new TreeItem<>(null);
for (ITreeNode child : root.children()) {
result.getChildren().add(createTreeItem(child));
}
return result;
}
private TreeItem<ITreeNode> createTreeItem(ITreeNode node) {
final TreeItem<ITreeNode> result = new TreeItem<>(node);
for (ITreeNode child : node.children()) {
result.getChildren().add(createTreeItem(child));
}
return result;
}