Running an incr combined with getAndLock results in a value of -1 without getAndLock it works as intended. With a locked value incr behaves like the key does not exist.

CouchbaseExample.java

import com.couchbase.client.CouchbaseClient;
import net.spy.memcached.CASValue;
import java.net.URI;
import java.util.Arrays;
import java.util.List;

public class CouchbaseExample {
    public static void main(String[] args) throws Exception {
        List<URI> hosts = Arrays.asList(new URI("http://localhost:8091/pools"));
        CouchbaseClient client = new CouchbaseClient(hosts, "default", "");

        long beforeValue = client.incr("my-counter", 1, 0);
        System.out.println("Incremented value is: " + beforeValue); // => Incremented value is: 0

        CASValue<Object> result = client.getAndLock("my-counter", 1000);

        long afterValue = client.incr("my-counter", 1, 0);
        System.out.println("Incremented value is: " + afterValue); // => Incremented value is: -1

        client.shutdown();
    }
}