public static void closeQuietly(Closeable closeable) {
        try {
            if (closeable != null) {
                closeable.close();
            }
        } catch (IOException e) {
            LOGGER.log(Level.FINE, e.toString(), e);
        }
    }
@Test
    public void closeQuietlyTest() {
        IOUtils.closeQuietly(null);

        DummyCloseable dummyCloseable = new DummyCloseable();
        IOUtils.closeQuietly(dummyCloseable);
        Assert.assertTrue(dummyCloseable.closed);

        IOUtils.closeQuietly(dummyCloseable);
    }