Errors when shading io.netty for use with pubsub

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I have pubsub 0.18.0 included in my project with netty dependencies shaded as follows:

       ShadeRule.rename("io.netty.**" -> "shade.io.netty.@1").inLibrary("io.grpc" % "grpc-netty" % grpcVersion),
        ShadeRule.rename("io.netty.**" -> "shade.io.netty.@1").inLibrary("io.netty" % "netty-transport" % grpcNettyVersion),
        ShadeRule.rename("io.netty.**" -> "shade.io.netty.@1").inLibrary("io.netty" % "netty-handler" % grpcNettyVersion),
        ShadeRule.rename("io.netty.**" -> "shade.io.netty.@1").inLibrary("io.netty" % "netty-codec-http2" % grpcNettyVersion),
        ShadeRule.rename("io.netty.**" -> "shade.io.netty.@1").inLibrary("io.netty" % "netty-codec-http" % grpcNettyVersion),
        ShadeRule.rename("io.netty.**" -> "shade.io.netty.@1").inLibrary("io.netty" % "netty-codec-socks" % grpcNettyVersion),
        ShadeRule.rename("io.netty.**" -> "shade.io.netty.@1").inLibrary("io.netty" % "netty-codec" % grpcNettyVersion),
        ShadeRule.rename("io.netty.**" -> "shade.io.netty.@1").inLibrary("io.netty" % "netty-common" % grpcNettyVersion),
        ShadeRule.rename("io.netty.**" -> "shade.io.netty.@1").inLibrary("io.netty" % "netty-buffer" % grpcNettyVersion),
        ShadeRule.rename("io.netty.**" -> "shade.io.netty.@1").inLibrary("io.netty" % "netty-resolver" % grpcNettyVersion),
        ShadeRule.rename("io.netty.**" -> "shade.io.netty.@1").inLibrary("io.netty" % "netty-handler-proxy" % grpcNettyVersion),

However when I start the Subscriber I get the following warning:

javax.net.ssl.SSLHandshakeException: No appropriate protocol (protocol is disabled or cipher suites are inappropriate)

Followed by the following error:

java.lang.IllegalStateException: Expected the service to be RUNNING, but the service has FAILED
	at shade.com.google.common.util.concurrent.AbstractService.checkCurrentState(AbstractService.java:310)
	at shade.com.google.common.util.concurrent.AbstractService.awaitRunning(AbstractService.java:255)
	at shade.com.google.api.core.AbstractApiService.awaitRunning(AbstractApiService.java:97)
	at org.apache.spark.streaming.gcp.PubSubReceiver$$anon$1.run(PubSubReceiver.scala:37)
Caused by: java.lang.IllegalStateException: Expected the service to be RUNNING, but the service has FAILED
	at shade.com.google.common.util.concurrent.AbstractService.checkCurrentState(AbstractService.java:310)
	at shade.com.google.common.util.concurrent.AbstractService.awaitRunning(AbstractService.java:255)
	at shade.com.google.api.core.AbstractApiService.awaitRunning(AbstractApiService.java:97)
	at shade.com.google.cloud.pubsub.spi.v1.Subscriber.startConnections(Subscriber.java:406)
	at shade.com.google.cloud.pubsub.spi.v1.Subscriber.startPollingConnections(Subscriber.java:375)
	at shade.com.google.cloud.pubsub.spi.v1.Subscriber.access$200(Subscriber.java:77)
	at shade.com.google.cloud.pubsub.spi.v1.Subscriber$4.run(Subscriber.java:256)
	at java.lang.Thread.run(Thread.java:745)
Caused by: io.grpc.StatusRuntimeException: UNAVAILABLE: Transport closed for unknown reason
	at io.grpc.Status.asRuntimeException(Status.java:540)
	at io.grpc.stub.ClientCalls$UnaryStreamToFuture.onClose(ClientCalls.java:439)
	at io.grpc.internal.ClientCallImpl.closeObserver(ClientCallImpl.java:428)
	at io.grpc.internal.ClientCallImpl.access$100(ClientCallImpl.java:76)
	at io.grpc.internal.ClientCallImpl$ClientStreamListenerImpl.close(ClientCallImpl.java:514)
	at io.grpc.internal.ClientCallImpl$ClientStreamListenerImpl.access$700(ClientCallImpl.java:431)
	at io.grpc.internal.ClientCallImpl$ClientStreamListenerImpl$1StreamClosed.runInContext(ClientCallImpl.java:546)
	at io.grpc.internal.ContextRunnable.run(ContextRunnable.java:52)
	at io.grpc.internal.SerializingExecutor$TaskRunner.run(SerializingExecutor.java:152)
	at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
	at java.util.concurrent.FutureTask.run(FutureTask.java:266)
	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180)
	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
	... 1 more

I am running the subscriber from GCP Dataproc.

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The issue is classpath related (tcnative), apologies for the noise.