@Test
    public void readOpmlTree() {
        opmlReader.init();

        try {
            Reader resourceReader = new FileReader(resourceFile);

            boolean parseStatus = opmlReader.readDocument(resourceReader);
            if (parseStatus) {
                Map<String, List<String>> elementTree = opmlReader.getElementTree();
                for (String element : elementTree.keySet()) {
                    System.out.println("Folder " + element + " has elements " + elementTree.get(element).toString());
                }
            }
        } catch (FileNotFoundException e) {
            e.printStackTrace();
        } catch (XmlPullParserException e) {
            e.printStackTrace();
        } catch (IOException e) {
            e.printStackTrace();
        } catch (ParsingIncompleteException e) {
            e.printStackTrace();
        }
    }