Object o2 = properties.get("test");
        assertEquals("test", o2);
    }

    @Test
    public void testLoadSave() throws IOException {
        StringWriter sw = new StringWriter();
        PrintWriter pw = new PrintWriter(sw);
        pw.println("# ");
        pw.println("# The Main  ");
        pw.println("# ");
        pw.println("# Comment ");
        pw.println("# ");

        StringWriter sWriter = new StringWriter();
        PrintWriter pWriter = new PrintWriter(sWriter);

        error.printStackTrace(pWriter);

        System.out.println("[" + prefix + "] " + sWriter.toString());
    }

    private void print(String prefix, CharSequence content, Throwable error) {
        StringWriter sWriter = new StringWriter();

     */
    public List<Problem> getProblems() {
        return problems;
    }

    private static String toMessage(List<Problem> problems) {
        StringWriter buffer = new StringWriter(1024);

        PrintWriter writer = new PrintWriter(buffer);

        writer.print(problems.size());
        writer.print((problems.size() == 1) ? " problem was " : " problems were ");

        String config = node.toString();
        assertFalse(config.isEmpty());
    }

    String toXml(Model model) throws IOException, XMLStreamException {
        StringWriter sw = new StringWriter();
        MavenStaxWriter writer = new MavenStaxWriter();
        writer.setAddLocationInformation(false);
        writer.write(sw, model);
        return sw.toString();
    }

     */
    public List<SettingsProblem> getProblems() {
        return problems;
    }

    private static String toMessage(List<SettingsProblem> problems) {
        StringWriter buffer = new StringWriter(1024);

        PrintWriter writer = new PrintWriter(buffer);

        writer.print(problems.size());
        writer.print((problems.size() == 1) ? " problem was " : " problems were ");

        }
        return null;
    }

    // Package protected for test
    static String toMessage(String modelId, List<ModelProblem> problems) {
        StringWriter buffer = new StringWriter(1024);

        PrintWriter writer = new PrintWriter(buffer);

        writer.print(problems.size());
        writer.print((problems.size() == 1) ? " problem was " : " problems were ");

    }

    public Model interpolate(Model model, File projectDir, ProjectBuilderConfiguration config, boolean debugEnabled)
            throws ModelInterpolationException {
        StringWriter sWriter = new StringWriter(1024);

        MavenStaxWriter writer = new MavenStaxWriter();
        try {
            writer.write(sWriter, model.getDelegate());
        } catch (IOException | XMLStreamException e) {

  public void testOpenBufferedStream() throws IOException {
    BufferedReader reader = source.openBufferedStream();
    assertTrue(source.wasStreamOpened());
    assertFalse(source.wasStreamClosed());

    StringWriter writer = new StringWriter();
    char[] buf = new char[64];
    int read;
    while ((read = reader.read(buf)) != -1) {
      writer.write(buf, 0, read);
    }
    reader.close();
    writer.close();

            int width = MessageUtils.getTerminalWidth();
            if (width <= 0) {
                width = HelpFormatter.DEFAULT_WIDTH;
            }

            pw.accept("");

            StringWriter sw = new StringWriter();
            PrintWriter pw2 = new PrintWriter(sw);
            formatter.printHelp(
                    pw2,
                    width,
                    commandLineSyntax(command),