protected ChannelHealthChecker healthChecker() {
        return healthCheck;
    }
@Test
    public void testHealthChecker() {
        final ChannelHealthChecker healthChecker = ChannelHealthChecker.ACTIVE;
        final SimpleChannelPool pool = new SimpleChannelPool(
                new Bootstrap(),
                new CountingChannelPoolHandler(),
                healthChecker);

        try {
            assertSame(healthChecker, pool.healthChecker());
        } finally {
            pool.close();
        }
    }