Emulator `java.lang.NullPointerException` with `enableMessageOrdering` set to true and dead-letter-topic set up [328691363]

Assigned

Bug

Status Update

No update yet.

Description

lo...@getlabs.com

created issue #1

Mar 8, 2024 04:42PM

Problem you have encountered:

I am getting the following error after a message fails to be delivered and the max delivery attempt is reached. Any subsequent pulls from the subscription results in this error. This only happens when message ordering is enabled on the subscription along with a dead-letter topic configured.

[pubsub] java.lang.NullPointerException
[pubsub]        at com.google.cloud.pubsub.testing.v1.MessageBacklog.pull(MessageBacklog.java:302)
[pubsub]        at com.google.cloud.pubsub.testing.v1.OrderedMessageBacklog.pullFromBacklogs(OrderedMessageBacklog.java:323)
[pubsub]        at com.google.cloud.pubsub.testing.v1.OrderedMessageBacklog.pull(OrderedMessageBacklog.java:181)
[pubsub]        at com.google.cloud.pubsub.testing.v1.OrderedMessageBacklog.pull(OrderedMessageBacklog.java:169)
[pubsub]        at com.google.cloud.pubsub.testing.v1.FakePubsubServer.pull(FakePubsubServer.java:1482)
[pubsub]        at com.google.cloud.pubsub.testing.v1.PubsubGrpcServerAdapter$2.pull(PubsubGrpcServerAdapter.java:349)
[pubsub]        at com.google.pubsub.v1.SubscriberGrpc$MethodHandlers.invoke(SubscriberGrpc.java:2037)
[pubsub]        at io.grpc.stub.ServerCalls$UnaryServerCallHandler$UnaryServerCallListener.onHalfClose(ServerCalls.java:182)
[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$ServerStreamListenerImpl.halfClosed(ServerCallImpl.java:351)
[pubsub]        at io.grpc.internal.ServerImpl$JumpToApplicationThreadServerStreamListener$1HalfClosed.runInContext(ServerImpl.java:860)
[pubsub]        at io.grpc.internal.ContextRunnable.run(ContextRunnable.java:37)
[pubsub]        at io.grpc.internal.SerializingExecutor.run(SerializingExecutor.java:133)
[pubsub]        at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1128)
[pubsub]        at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:628)
[pubsub]        at java.base/java.lang.Thread.run(Thread.java:829)
[pubsub] 
[pubsub] Mar 01, 2024 6:08:18 PM io.gapi.emulators.netty.HttpHandler$1 onError

What you expected to happen: I am expecting the failed messages to be delivered to my dead-letter topic and be able to pull messages normally from the subscription.

Steps to reproduce:

Run the simulator via the google/cloud-sdk:emulators image.
Set up topic/subscription with message ordering and dead-letter policy. If I remove message ordering, things work as expected

Comments

va...@google.com <va...@google.com> Mar 11, 2024 11:10AM

Assigned to nr...@google.com.

ab...@google.com <ab...@google.com> #2Mar 12, 2024 10:41AM

Hello,

Thank you for reaching out to us with your request.

We have duly noted your feedback and will thoroughly validate it. While we cannot provide an estimated time of implementation or guarantee the fulfillment of the issue, please be assured that your input is highly valued. Your feedback enables us to enhance our products and services.

We appreciate your continued trust and support in improving our Google Cloud Platform products. In case you want to report a new issue, please do not hesitate to create a new issue on the Issue Tracker providing a detailed description of your issue.

Once again, we sincerely appreciate your valuable feedback; Thank you for your understanding and collaboration.

lo...@getlabs.com <lo...@getlabs.com> #3Mar 12, 2024 02:14PM

Hello! The version is 0.8.11.

nr...@google.com <nr...@google.com> #4Mar 18, 2024 01:25PM

Reassigned to gc...@google.com.

Hello,

Thank you for reaching out to us with your request.

We appreciate your continued trust and support in improving our Google Cloud Platform products. In case you want to report a new issue, Please do not hesitate to create a new issue on the Issue Tracker providing a detailed description of your issue.

Once again, we sincerely appreciate your valuable feedback; Thank you for your understanding and collaboration.

lu...@weareuncapped.com <lu...@weareuncapped.com> #5Oct 31, 2024 12:13PM

Same issue on recent cloud-sdk:499.0.0-emulators

Issue 328691363