assertNotNull(responseData.getLastModified());
        assertTrue(responseData.getLastModified().getTime() < new Date().getTime());
        assertNull(responseData.getResponseBody());
    }

    public void test_doHead_dir() throws Exception {
        final File file = ResourceUtil.getResourceAsFile("test");
        String path = file.getAbsolutePath();
        if (!path.startsWith("/")) {
            path = "/" + path.replace('\\', '/');

            assertNull(responseData);
        } finally {
            if (server != null) {
                server.stop();
            }
        }
    }

    public void test_doHead_dir1() throws Exception {
        FtpServer server = null;
        try {
            String username = "testuser";
            String password = "testpass";