Creating subscriptions with latest local build

[parity-error]

When I use your image
messagebird/gcloud-pubsub-emulator:latest everything works for me as described, including the ability to create topics, etc with the environment variables.

However when I build the image myself and run it with the environment set to create a topic and subscription (same values that worked with your image) it creates the topic then gets the following error when creating a subscription. clipped message from the log follows:

Exception in thread "grpc-default-executor-10" java.lang.NoClassDefFoundError: java/time/Duration
[pubsub] at com.google.cloud.pubsub.testing.v1.MessageBacklog.(MessageBacklog.java:89)
[pubsub] at com.google.cloud.pubsub.testing.v1.MessageBacklog.(MessageBacklog.java:78)
[pubsub] at com.google.cloud.pubsub.testing.v1.FakePubsubServer$SubscriptionData.(FakePubsubServer.java:1353)
[pubsub] at com.google.cloud.pubsub.testing.v1.FakePubsubServer.createSubscription(FakePubsubServer.java:455)
[pubsub] at com.google.cloud.pubsub.testing.v1.PubsubGrpcServerAdapter$2.createSubscription(PubsubGrpcServerAdapter.java:177)
[pubsub] at com.google.pubsub.v1.SubscriberGrpc$MethodHandlers.invoke(SubscriberGrpc.java:2323)
[pubsub] at io.grpc.stub.ServerCalls$UnaryServerCallHandler$UnaryServerCallListener.onHalfClose(ServerCalls.java:171)
[pubsub] at io.grpc.PartialForwardingServerCallListener.onHalfClose(PartialForwardingServerCallListener.java:35)
[pubsub] at io.grpc.ForwardingServerCallListener.onHalfClose(ForwardingServerCallListener.java:23)
[pubsub] at io.grpc.ForwardingServerCallListener$SimpleForwardingServerCallListener.onHalfClose(ForwardingServerCallListener.java:40)
[pubsub] at io.grpc.Contexts$ContextualizedServerCallListener.onHalfClose(Contexts.java:86)
[pubsub] at io.grpc.internal.ServerCallImpl$ServerStreamListenerImpl.halfClosed(ServerCallImpl.java:283)
[pubsub] at io.grpc.internal.ServerImpl$JumpToApplicationThreadServerStreamListener$1HalfClosed.runInContext(ServerImpl.java:761)
[pubsub] at io.grpc.internal.ContextRunnable.run(ContextRunnable.java:37)
[pubsub] at io.grpc.internal.SerializingExecutor.run(SerializingExecutor.java:123)
[pubsub] at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1152)
[pubsub] at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:622)
[pubsub] at java.lang.Thread.run(Thread.java:748)

Is it possible that some of the dependencies of this dockerfile have drifted?

[parity-error]

To reproduce you can use your own examples from the readme. (for creating topic, subscriptions, etc. )

[KeirSweeney]

+1 I'm facing the same issue

[KeirSweeney]

I've got a fix, I'll open up a PR shortly

[KeirSweeney]

@parity-error #10

You can find how I got it working in my PR here, really simple change, just updating the JDK version did the trick.

[parity-error]

Nice. Thank you!