java MemcachedClient.mutate method never returns

[Ray Krueger]

In testing the MemcachedClient.incr and decr functions I came across
two problems.

1) The internal mutate method uses latch.await() with no default
timeout, and no way to set a timeout.
2) Using incr never recovers from the instance it was using going down.

Run the following code:
public static void main(String[] args) throws Exception {

	MemcachedClient cache = new
MemcachedClient(AddrUtil.getAddresses("localhost:11211"));

	for (int i=0; i < 1000; i++) {
		cache.incr("test", 1, 1);
		Thread.sleep(100);
	}

	cache.shutdown();

}


While the loop is incrementing shutdown the memcached instance and
bring it back up. The client will never reconnect, maybe because it's
blocked on the latch.await()?