Any chance to connect to CouchbaseMock with 2.0+ java api?

Question

A lot of people were asking this question some time ago and I would be happy to know if there is a chance to support that? I really do not want to resign from nice rx.java api to be able to run my integration tests locally.

1. Anyone succeed connecting to CouchbaseMock with java api 2.0?
2. For Couchbase related people: Any plans to support this in the future?
3. Is there any other implementation of Couchbase mock, maybe in different language?

Attaching the log from my last attempt, looks like the api is throwing NPE.

> Mar 14, 2017 10:04:39 AM com.couchbase.client.core.CouchbaseCore
> <init> INFO: CouchbaseEnvironment: {sslEnabled=false,
> sslKeystoreFile='null', sslKeystorePassword=false, sslKeystore=null,
> bootstrapHttpEnabled=true, bootstrapCarrierEnabled=true,
> bootstrapHttpDirectPort=7777, bootstrapHttpSslPort=18091,
> bootstrapCarrierDirectPort=55001, bootstrapCarrierSslPort=11207,
> ioPoolSize=8, computationPoolSize=8, responseBufferSize=16384,
> requestBufferSize=16384, kvServiceEndpoints=1,
> viewServiceEndpoints=12, queryServiceEndpoints=12,
> searchServiceEndpoints=12, ioPool=NioEventLoopGroup, kvIoPool=null,
> viewIoPool=null, searchIoPool=null, queryIoPool=null,
> coreScheduler=CoreScheduler,
> memcachedHashingStrategy=DefaultMemcachedHashingStrategy,
> eventBus=DefaultEventBus,
> packageNameAndVersion=couchbase-java-client/2.4.2 (git: 2.4.2, core:
> 1.4.2), dcpEnabled=false, retryStrategy=BestEffort, maxRequestLifetime=75000, retryDelay=ExponentialDelay{growBy 1.0
> MICROSECONDS, powers of 2; lower=100, upper=100000},
> reconnectDelay=ExponentialDelay{growBy 1.0 MILLISECONDS, powers of 2;
> lower=32, upper=4096}, observeIntervalDelay=ExponentialDelay{growBy
> 1.0 MICROSECONDS, powers of 2; lower=10, upper=100000}, keepAliveInterval=30000, autoreleaseAfter=2000,
> bufferPoolingEnabled=true, tcpNodelayEnabled=true,
> mutationTokensEnabled=false, socketConnectTimeout=1000,
> dcpConnectionBufferSize=20971520, dcpConnectionBufferAckThreshold=0.2,
> dcpConnectionName=dcp/core-io, callbacksOnIoPool=false,
> disconnectTimeout=25000,
> requestBufferWaitStrategy=com.couchbase.client.core.env.DefaultCoreEnvironment$2@7d3a22a9,
> queryTimeout=75000, viewTimeout=75000, kvTimeout=2500,
> connectTimeout=5000, dnsSrvEnabled=false} Mar 14, 2017 10:04:40 AM
> com.couchbase.client.core.node.CouchbaseNode signalConnected INFO:
> Connected to Node 127.0.0.1 Mar 14, 2017 10:04:40 AM
> com.couchbase.client.core.endpoint.AbstractGenericHandler
> exceptionCaught WARNING: [/127.0.0.1:55001][KeyValueEndpoint]: Caught
> unknown exception: java.lang.NullPointerException
> com.couchbase.client.deps.io.netty.handler.codec.DecoderException:
> java.lang.NullPointerException    at
> com.couchbase.client.deps.io.netty.handler.codec.MessageToMessageDecoder.channelRead(MessageToMessageDecoder.java:98)
>   at
> com.couchbase.client.deps.io.netty.handler.codec.MessageToMessageCodec.channelRead(MessageToMessageCodec.java:111)
>   at
> com.couchbase.client.deps.io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:357)
>   at
> com.couchbase.client.deps.io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:343)
>   at
> com.couchbase.client.deps.io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:336)
>   at
> com.couchbase.client.deps.io.netty.handler.codec.MessageToMessageDecoder.channelRead(MessageToMessageDecoder.java:102)
>   at
> com.couchbase.client.deps.io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:357)
>   at
> com.couchbase.client.deps.io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:343)
>   at
> com.couchbase.client.deps.io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:336)
>   at
> com.couchbase.client.deps.io.netty.channel.CombinedChannelDuplexHandler$DelegatingChannelHandlerContext.fireChannelRead(CombinedChannelDuplexHandler.java:435)
>   at
> com.couchbase.client.deps.io.netty.handler.codec.ByteToMessageDecoder.fireChannelRead(ByteToMessageDecoder.java:293)
>   at
> com.couchbase.client.deps.io.netty.handler.codec.ByteToMessageDecoder.channelRead(ByteToMessageDecoder.java:267)
>   at
> com.couchbase.client.deps.io.netty.channel.CombinedChannelDuplexHandler.channelRead(CombinedChannelDuplexHandler.java:250)
>   at
> com.couchbase.client.deps.io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:357)
>   at
> com.couchbase.client.deps.io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:343)
>   at
> com.couchbase.client.deps.io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:336)
>   at
> com.couchbase.client.deps.io.netty.handler.timeout.IdleStateHandler.channelRead(IdleStateHandler.java:287)
>   at
> com.couchbase.client.deps.io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:357)
>   at
> com.couchbase.client.deps.io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:343)
>   at
> com.couchbase.client.deps.io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:336)
>   at
> com.couchbase.client.deps.io.netty.channel.DefaultChannelPipeline$HeadContext.channelRead(DefaultChannelPipeline.java:1294)
>   at
> com.couchbase.client.deps.io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:357)
>   at
> com.couchbase.client.deps.io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:343)
>   at
> com.couchbase.client.deps.io.netty.channel.DefaultChannelPipeline.fireChannelRead(DefaultChannelPipeline.java:911)
>   at
> com.couchbase.client.deps.io.netty.channel.nio.AbstractNioByteChannel$NioByteUnsafe.read(AbstractNioByteChannel.java:131)
>   at
> com.couchbase.client.deps.io.netty.channel.nio.NioEventLoop.processSelectedKey(NioEventLoop.java:643)
>   at
> com.couchbase.client.deps.io.netty.channel.nio.NioEventLoop.processSelectedKeysOptimized(NioEventLoop.java:566)
>   at
> com.couchbase.client.deps.io.netty.channel.nio.NioEventLoop.processSelectedKeys(NioEventLoop.java:480)
>   at
> com.couchbase.client.deps.io.netty.channel.nio.NioEventLoop.run(NioEventLoop.java:442)
>   at
> com.couchbase.client.deps.io.netty.util.concurrent.SingleThreadEventExecutor$2.run(SingleThreadEventExecutor.java:131)
>   at
> com.couchbase.client.deps.io.netty.util.concurrent.DefaultThreadFactory$DefaultRunnableDecorator.run(DefaultThreadFactory.java:144)
>   at java.lang.Thread.run(Thread.java:745) Caused by:
> java.lang.NullPointerException    at
> com.couchbase.client.core.endpoint.AbstractGenericHandler.decode(AbstractGenericHandler.java:266)
>   at
> com.couchbase.client.deps.io.netty.handler.codec.MessageToMessageCodec$2.decode(MessageToMessageCodec.java:81)
>   at
> com.couchbase.client.deps.io.netty.handler.codec.MessageToMessageDecoder.channelRead(MessageToMessageDecoder.java:88)
>   ... 31 more
> 
> Mar 14, 2017 10:04:40 AM
> com.couchbase.client.deps.io.netty.channel.DefaultChannelPipeline
> onUnhandledInboundException WARNING: An exceptionCaught() event was
> fired, and it reached at the tail of the pipeline. It usually means
> the last handler in the pipeline did not handle the exception.
> com.couchbase.client.deps.io.netty.handler.codec.DecoderException:
> java.lang.NullPointerException    at
> com.couchbase.client.deps.io.netty.handler.codec.MessageToMessageDecoder.channelRead(MessageToMessageDecoder.java:98)
>   at
> com.couchbase.client.deps.io.netty.handler.codec.MessageToMessageCodec.channelRead(MessageToMessageCodec.java:111)
>   at
> com.couchbase.client.deps.io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:357)
>   at
> com.couchbase.client.deps.io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:343)
>   at
> com.couchbase.client.deps.io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:336)
>   at
> com.couchbase.client.deps.io.netty.handler.codec.MessageToMessageDecoder.channelRead(MessageToMessageDecoder.java:102)
>   at
> com.couchbase.client.deps.io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:357)
>   at
> com.couchbase.client.deps.io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:343)
>   at
> com.couchbase.client.deps.io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:336)
>   at
> com.couchbase.client.deps.io.netty.channel.CombinedChannelDuplexHandler$DelegatingChannelHandlerContext.fireChannelRead(CombinedChannelDuplexHandler.java:435)
>   at
> com.couchbase.client.deps.io.netty.handler.codec.ByteToMessageDecoder.fireChannelRead(ByteToMessageDecoder.java:293)
>   at
> com.couchbase.client.deps.io.netty.handler.codec.ByteToMessageDecoder.channelRead(ByteToMessageDecoder.java:267)
>   at
> com.couchbase.client.deps.io.netty.channel.CombinedChannelDuplexHandler.channelRead(CombinedChannelDuplexHandler.java:250)
>   at
> com.couchbase.client.deps.io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:357)
>   at
> com.couchbase.client.deps.io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:343)
>   at
> com.couchbase.client.deps.io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:336)
>   at
> com.couchbase.client.deps.io.netty.handler.timeout.IdleStateHandler.channelRead(IdleStateHandler.java:287)
>   at
> com.couchbase.client.deps.io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:357)
>   at
> com.couchbase.client.deps.io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:343)
>   at
> com.couchbase.client.deps.io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:336)
>   at
> com.couchbase.client.deps.io.netty.channel.DefaultChannelPipeline$HeadContext.channelRead(DefaultChannelPipeline.java:1294)
>   at
> com.couchbase.client.deps.io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:357)
>   at
> com.couchbase.client.deps.io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:343)
>   at
> com.couchbase.client.deps.io.netty.channel.DefaultChannelPipeline.fireChannelRead(DefaultChannelPipeline.java:911)
>   at
> com.couchbase.client.deps.io.netty.channel.nio.AbstractNioByteChannel$NioByteUnsafe.read(AbstractNioByteChannel.java:131)
>   at
> com.couchbase.client.deps.io.netty.channel.nio.NioEventLoop.processSelectedKey(NioEventLoop.java:643)
>   at
> com.couchbase.client.deps.io.netty.channel.nio.NioEventLoop.processSelectedKeysOptimized(NioEventLoop.java:566)
>   at
> com.couchbase.client.deps.io.netty.channel.nio.NioEventLoop.processSelectedKeys(NioEventLoop.java:480)
>   at
> com.couchbase.client.deps.io.netty.channel.nio.NioEventLoop.run(NioEventLoop.java:442)
>   at
> com.couchbase.client.deps.io.netty.util.concurrent.SingleThreadEventExecutor$2.run(SingleThreadEventExecutor.java:131)
>   at
> com.couchbase.client.deps.io.netty.util.concurrent.DefaultThreadFactory$DefaultRunnableDecorator.run(DefaultThreadFactory.java:144)
>   at java.lang.Thread.run(Thread.java:745) Caused by:
> java.lang.NullPointerException    at
> com.couchbase.client.core.endpoint.AbstractGenericHandler.decode(AbstractGenericHandler.java:266)
>   at
> com.couchbase.client.deps.io.netty.handler.codec.MessageToMessageCodec$2.decode(MessageToMessageCodec.java:81)
>   at
> com.couchbase.client.deps.io.netty.handler.codec.MessageToMessageDecoder.channelRead(MessageToMessageDecoder.java:88)
>   ... 31 more
> 
> Mar 14, 2017 10:04:40 AM
> com.couchbase.client.core.endpoint.AbstractGenericHandler
> exceptionCaught WARNING: [/127.0.0.1:55001][KeyValueEndpoint]: Caught
> unknown exception: java.lang.NullPointerException
> com.couchbase.client.deps.io.netty.handler.codec.DecoderException:
> java.lang.NullPointerException    at
> com.couchbase.client.deps.io.netty.handler.codec.MessageToMessageDecoder.channelRead(MessageToMessageDecoder.java:98)
>   at
> com.couchbase.client.deps.io.netty.handler.codec.MessageToMessageCodec.channelRead(MessageToMessageCodec.java:111)
>   at
> com.couchbase.client.deps.io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:357)
>   at
> com.couchbase.client.deps.io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:343)
>   at
> com.couchbase.client.deps.io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:336)
>   at
> com.couchbase.client.deps.io.netty.handler.codec.MessageToMessageDecoder.channelRead(MessageToMessageDecoder.java:102)
>   at
> com.couchbase.client.deps.io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:357)
>   at
> com.couchbase.client.deps.io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:343)
>   at
> com.couchbase.client.deps.io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:336)
>   at
> com.couchbase.client.deps.io.netty.channel.CombinedChannelDuplexHandler$DelegatingChannelHandlerContext.fireChannelRead(CombinedChannelDuplexHandler.java:435)
>   at
> com.couchbase.client.deps.io.netty.handler.codec.ByteToMessageDecoder.fireChannelRead(ByteToMessageDecoder.java:293)
>   at
> com.couchbase.client.deps.io.netty.handler.codec.ByteToMessageDecoder.channelRead(ByteToMessageDecoder.java:267)
>   at
> com.couchbase.client.deps.io.netty.channel.CombinedChannelDuplexHandler.channelRead(CombinedChannelDuplexHandler.java:250)
>   at
> com.couchbase.client.deps.io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:357)
>   at
> com.couchbase.client.deps.io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:343)
>   at
> com.couchbase.client.deps.io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:336)
>   at
> com.couchbase.client.deps.io.netty.handler.timeout.IdleStateHandler.channelRead(IdleStateHandler.java:287)
>   at
> com.couchbase.client.deps.io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:357)
>   at
> com.couchbase.client.deps.io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:343)
>   at
> com.couchbase.client.deps.io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:336)
>   at
> com.couchbase.client.deps.io.netty.channel.DefaultChannelPipeline$HeadContext.channelRead(DefaultChannelPipeline.java:1294)
>   at
> com.couchbase.client.deps.io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:357)
>   at
> com.couchbase.client.deps.io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:343)
>   at
> com.couchbase.client.deps.io.netty.channel.DefaultChannelPipeline.fireChannelRead(DefaultChannelPipeline.java:911)
>   at
> com.couchbase.client.deps.io.netty.channel.nio.AbstractNioByteChannel$NioByteUnsafe.read(AbstractNioByteChannel.java:131)
>   at
> com.couchbase.client.deps.io.netty.channel.nio.NioEventLoop.processSelectedKey(NioEventLoop.java:643)
>   at
> com.couchbase.client.deps.io.netty.channel.nio.NioEventLoop.processSelectedKeysOptimized(NioEventLoop.java:566)
>   at
> com.couchbase.client.deps.io.netty.channel.nio.NioEventLoop.processSelectedKeys(NioEventLoop.java:480)
>   at
> com.couchbase.client.deps.io.netty.channel.nio.NioEventLoop.run(NioEventLoop.java:442)
>   at
> com.couchbase.client.deps.io.netty.util.concurrent.SingleThreadEventExecutor$2.run(SingleThreadEventExecutor.java:131)
>   at
> com.couchbase.client.deps.io.netty.util.concurrent.DefaultThreadFactory$DefaultRunnableDecorator.run(DefaultThreadFactory.java:144)
>   at java.lang.Thread.run(Thread.java:745) Caused by:
> java.lang.NullPointerException    at
> com.couchbase.client.core.endpoint.AbstractGenericHandler.decode(AbstractGenericHandler.java:266)
>   at
> com.couchbase.client.deps.io.netty.handler.codec.MessageToMessageCodec$2.decode(MessageToMessageCodec.java:81)
>   at
> com.couchbase.client.deps.io.netty.handler.codec.MessageToMessageDecoder.channelRead(MessageToMessageDecoder.java:88)
>   ... 31 more
> 
> Mar 14, 2017 10:04:40 AM
> com.couchbase.client.deps.io.netty.channel.DefaultChannelPipeline
> onUnhandledInboundException WARNING: An exceptionCaught() event was
> fired, and it reached at the tail of the pipeline. It usually means
> the last handler in the pipeline did not handle the exception.
> com.couchbase.client.deps.io.netty.handler.codec.DecoderException:
> java.lang.NullPointerException    at
> com.couchbase.client.deps.io.netty.handler.codec.MessageToMessageDecoder.channelRead(MessageToMessageDecoder.java:98)
>   at
> com.couchbase.client.deps.io.netty.handler.codec.MessageToMessageCodec.channelRead(MessageToMessageCodec.java:111)
>   at
> com.couchbase.client.deps.io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:357)
>   at
> com.couchbase.client.deps.io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:343)
>   at
> com.couchbase.client.deps.io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:336)
>   at
> com.couchbase.client.deps.io.netty.handler.codec.MessageToMessageDecoder.channelRead(MessageToMessageDecoder.java:102)
>   at
> com.couchbase.client.deps.io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:357)
>   at
> com.couchbase.client.deps.io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:343)
>   at
> com.couchbase.client.deps.io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:336)
>   at
> com.couchbase.client.deps.io.netty.channel.CombinedChannelDuplexHandler$DelegatingChannelHandlerContext.fireChannelRead(CombinedChannelDuplexHandler.java:435)
>   at
> com.couchbase.client.deps.io.netty.handler.codec.ByteToMessageDecoder.fireChannelRead(ByteToMessageDecoder.java:293)
>   at
> com.couchbase.client.deps.io.netty.handler.codec.ByteToMessageDecoder.channelRead(ByteToMessageDecoder.java:267)
>   at
> com.couchbase.client.deps.io.netty.channel.CombinedChannelDuplexHandler.channelRead(CombinedChannelDuplexHandler.java:250)
>   at
> com.couchbase.client.deps.io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:357)
>   at
> com.couchbase.client.deps.io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:343)
>   at
> com.couchbase.client.deps.io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:336)
>   at
> com.couchbase.client.deps.io.netty.handler.timeout.IdleStateHandler.channelRead(IdleStateHandler.java:287)
>   at
> com.couchbase.client.deps.io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:357)
>   at
> com.couchbase.client.deps.io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:343)
>   at
> com.couchbase.client.deps.io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:336)
>   at
> com.couchbase.client.deps.io.netty.channel.DefaultChannelPipeline$HeadContext.channelRead(DefaultChannelPipeline.java:1294)
>   at
> com.couchbase.client.deps.io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:357)
>   at
> com.couchbase.client.deps.io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:343)
>   at
> com.couchbase.client.deps.io.netty.channel.DefaultChannelPipeline.fireChannelRead(DefaultChannelPipeline.java:911)
>   at
> com.couchbase.client.deps.io.netty.channel.nio.AbstractNioByteChannel$NioByteUnsafe.read(AbstractNioByteChannel.java:131)
>   at
> com.couchbase.client.deps.io.netty.channel.nio.NioEventLoop.processSelectedKey(NioEventLoop.java:643)
>   at
> com.couchbase.client.deps.io.netty.channel.nio.NioEventLoop.processSelectedKeysOptimized(NioEventLoop.java:566)
>   at
> com.couchbase.client.deps.io.netty.channel.nio.NioEventLoop.processSelectedKeys(NioEventLoop.java:480)
>   at
> com.couchbase.client.deps.io.netty.channel.nio.NioEventLoop.run(NioEventLoop.java:442)
>   at
> com.couchbase.client.deps.io.netty.util.concurrent.SingleThreadEventExecutor$2.run(SingleThreadEventExecutor.java:131)
>   at
> com.couchbase.client.deps.io.netty.util.concurrent.DefaultThreadFactory$DefaultRunnableDecorator.run(DefaultThreadFactory.java:144)
>   at java.lang.Thread.run(Thread.java:745) Caused by:
> java.lang.NullPointerException    at
> com.couchbase.client.core.endpoint.AbstractGenericHandler.decode(AbstractGenericHandler.java:266)
>   at
> com.couchbase.client.deps.io.netty.handler.codec.MessageToMessageCodec$2.decode(MessageToMessageCodec.java:81)
>   at
> com.couchbase.client.deps.io.netty.handler.codec.MessageToMessageDecoder.channelRead(MessageToMessageDecoder.java:88)
>   ... 31 more
> 
> Exception in thread "main" java.lang.RuntimeException:
> java.util.concurrent.TimeoutException     at
> com.couchbase.client.core.utils.Blocking.blockForSingle(Blocking.java:74)
>   at
> com.couchbase.client.java.CouchbaseCluster.openBucket(CouchbaseCluster.java:310)
>   at
> com.couchbase.client.java.CouchbaseCluster.openBucket(CouchbaseCluster.java:288)
>   at
> com.couchbase.client.java.CouchbaseCluster.openBucket(CouchbaseCluster.java:278)
>   at
> com.couchbase.client.java.CouchbaseCluster.openBucket(CouchbaseCluster.java:262)
>   at com.mycompany.ohsm.io.Test.main(Test.java:27) Caused by:
> java.util.concurrent.TimeoutException     ... 6 more

Mock Server (1.4.4):

final CouchbaseMock couchbaseMock =
                new CouchbaseMock("localhost", 7777, 1, 0, 1024, "couchbase::memcache", 0);
        couchbaseMock.start();
        couchbaseMock.waitForStartup();

Client (2.4.2):

final DefaultCouchbaseEnvironment env = DefaultCouchbaseEnvironment.builder().
                bootstrapCarrierEnabled(true).
                bootstrapHttpEnabled(true).
                bootstrapHttpDirectPort(7777).
                sslEnabled(false).
                bootstrapCarrierDirectPort(55001).
                build();

        CouchbaseCluster couchbaseCluster = CouchbaseCluster.create(env, "127.0.0.1");


        final Bucket couchbase = couchbaseCluster.openBucket("couchbase");
        final JsonDocument doc = couchbase.get("key");

Answer 1

I see that your java client CouchbaseEnvironment has memcached port as 55001, not sure how you had set it on the mock. I just tried basic operations with 2.x java client and mock, they worked fine.

Answer 2

1. I am not aware of any reason this shouldn't work, but I'll ask some colleagues to jump in on this.
2. At the moment, CouchbaseMock is a maintained project and useful for a lot of these cases, but we don't have an intent for it to be a complete mock in the near term. Rather, we'd like to remove the barriers to using a cluster-of-one or like.
3. Nothing as complete.