Not able to create bucket

Trying to create a bucket using the java client.

I am using a couchbase:6.0.3 container and exposed all the required ports.

Code sample:

CouchbaseCluster couchbaseCluster = CouchbaseCluster.create("0.0.0.0");

ClusterManager clusterManager = couchbaseCluster.clusterManager("root", "password");

BucketSettings bucketSettings =

    DefaultBucketSettings.builder()

        .enableFlush(true)

        .name("bucket-name")

        .password("secret")

        .quota(100)

        .type(BucketType.COUCHBASE)

        .build();

clusterManager.insertBucket(bucketSettings);

System.out.println("created bucket");

com.couchbase.client.core.CouchbaseException: NOT_EXISTS: "unknown pool"com.couchbase.client.core.CouchbaseException: NOT_EXISTS: "unknown pool"
at com.couchbase.client.java.cluster.DefaultAsyncClusterManager$3.call(DefaultAsyncClusterManager.java:132) at com.couchbase.client.java.cluster.DefaultAsyncClusterManager$3.call(DefaultAsyncClusterManager.java:125) at rx.internal.util.ActionObserver.onNext(ActionObserver.java:39) at rx.internal.operators.OnSubscribeDoOnEach$DoOnEachSubscriber.onNext(OnSubscribeDoOnEach.java:96) at rx.internal.operators.OnSubscribeRedo$2$1.onNext(OnSubscribeRedo.java:244) at rx.internal.operators.OperatorMerge$MergeSubscriber.emitScalar(OperatorMerge.java:395) at rx.internal.operators.OperatorMerge$MergeSubscriber.tryEmit(OperatorMerge.java:355) at rx.internal.operators.OperatorMerge$InnerSubscriber.onNext(OperatorMerge.java:846) at rx.observers.Subscribers$5.onNext(Subscribers.java:235) at rx.internal.operators.OnSubscribeDoOnEach$DoOnEachSubscriber.onNext(OnSubscribeDoOnEach.java:101) at rx.internal.producers.SingleProducer.request(SingleProducer.java:65) at rx.Subscriber.setProducer(Subscriber.java:211) at rx.Subscriber.setProducer(Subscriber.java:205) at rx.Subscriber.setProducer(Subscriber.java:205) at rx.subjects.AsyncSubject.onCompleted(AsyncSubject.java:103) at com.couchbase.client.core.endpoint.AbstractGenericHandler.completeResponse(AbstractGenericHandler.java:508) at com.couchbase.client.core.endpoint.AbstractGenericHandler.access$000(AbstractGenericHandler.java:86) at com.couchbase.client.core.endpoint.AbstractGenericHandler$1.call(AbstractGenericHandler.java:526) at rx.internal.schedulers.ScheduledAction.run(ScheduledAction.java:55) at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511) at java.util.concurrent.FutureTask.run$$$capture(FutureTask.java:266) at java.util.concurrent.FutureTask.run(FutureTask.java) at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180) at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) at java.lang.Thread.run(Thread.java:748)Caused by: rx.exceptions.OnErrorThrowable$OnNextValue: OnError while emitting onNext value: com.couchbase.client.core.message.config.ClusterConfigResponse.class at rx.exceptions.OnErrorThrowable.addValueAsLastCause(OnErrorThrowable.java:118) at rx.exceptions.Exceptions.throwOrReport(Exceptions.java:188) at rx.internal.operators.OnSubscribeDoOnEach$DoOnEachSubscriber.onNext(OnSubscribeDoOnEach.java:98) ... 23 more