private List<TreePath> getTreePaths(Set<DomainFile> files) {
		List<TreePath> results = new ArrayList<>();
		for (DomainFile file : files) {
			results.add(getTreePath(file));
		}
		return results;
	}
Close the root folder for this data tree.
Ghidra/Framework/Project/src/main/java/ghidra/framework/main/datatree/ProjectDataTreePanel.java