@Override
    public ClientPoolHandler addLast(String name, ChannelHandler handler) {
        super.addLast(name, handler);
        return this;
    }
@Test
    public void testAddLast() {
        ClientPoolHandler handler = new ClientPoolHandler();
        Assert.assertTrue(handler.isEmpty());
        handler.addLast(test, new TestHandler());
        Assert.assertFalse(handler.isEmpty());
    }