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com.couchbase.client.java.error.DocumentDoesNotExistException: null at com.couchbase.client.java.CouchbaseAsyncBucket$22.call(CouchbaseAsyncBucket.java:684)[java-client-2.2.8.jar:na] at com.couchbase.client.java.CouchbaseAsyncBucket$22.call(CouchbaseAsyncBucket.java:671)[java-client-2.2.8.jar:na] at rx.internal.operators.OperatorMap$1.onNext(OperatorMap.java:54)[rxjava-1.0.17.jar:1.0.17] at rx.observers.Subscribers$5.onNext(Subscribers.java:234)[rxjava-1.0.17.jar:1.0.17] at rx.subjects.SubjectSubscriptionManager$SubjectObserver.onNext(SubjectSubscriptionManager.java:223)[rxjava-1.0.17.jar:1.0.17] at rx.subjects.AsyncSubject.onCompleted(AsyncSubject.java:101)[rxjava-1.0.17.jar:1.0.17] at com.couchbase.client.core.endpoint.AbstractGenericHandler.completeResponse(AbstractGenericHandler.java:354)[core-io-1.2.9.jar:na] at com.couchbase.client.core.endpoint.AbstractGenericHandler.access$000(AbstractGenericHandler.java:72)[core-io-1.2.9.jar:na] at com.couchbase.client.core.endpoint.AbstractGenericHandler$1.call(AbstractGenericHandler.java:372)[core-io-1.2.9.jar:na] at rx.internal.schedulers.ScheduledAction.run(ScheduledAction.java:55)[rxjava-1.0.17.jar:1.0.17] at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:471)[na:1.7.0_80] at java.util.concurrent.FutureTask.run(FutureTask.java:262)[na:1.7.0_80] at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:178)[na:1.7.0_80] at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:292)[na:1.7.0_80] at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)[na:1.7.0_80] at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)[na:1.7.0_80] at java.lang.Thread.run(Thread.java:745)[na:1.7.0_80]Caused by: rx.exceptions.OnErrorThrowable$OnNextValue: OnError while emitting onNext value: com.couchbase.client.core.message.kv.RemoveResponse.class at rx.exceptions.OnErrorThrowable.addValueAsLastCause(OnErrorThrowable.java:109)[rxjava-1.0.17.jar:1.0.17] at rx.exceptions.Exceptions.throwOrReport(Exceptions.java:188)[rxjava-1.0.17.jar:1.0.17] at rx.internal.operators.OperatorMap$1.onNext(OperatorMap.java:56)[rxjava-1.0.17.jar:1.0.17] ... 14 more