* @throws Exception
     */
    @Test
    public void testClose() throws Exception {
        final NotifyOutputStream out = new NotifyOutputStream();
        CloseableUtil.close(out);
        assertThat(out.getNotify(), is("closed"));
    }

    /**
     * @throws Exception
     */
    @Test
    public void testCloseNull() throws Exception {
        CloseableUtil.close((OutputStream) null);
    }

    /**