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• I searched in the issues and found nothing similar.

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• I understand that unsupported versions don't get bug fixes. I will attempt to reproduce the issue on a supported version of Pulsar client and Pulsar broker.

Version

OS: Ubuntu 23.10
Docker Pulsar standalone 3.1.2

Minimal reproduce step

Using Java client suggesting that adminClient is of type PulsarAdmin:
invoke adminClient.topics().updateSubscriptionProperties(*topicName*, *subName*, *props*) on a persistent topic (on a non-persistent topic it works just fine) and on non-durable subscription (for durable subscriptions updates also).

What did you expect to see?

Expected to update properties for subscription on a topic

What did you see instead?

I got error:

 --- An unexpected error occurred in the server ---

Message: 
 --- An unexpected error occurred in the server ---

Message: Cannot invoke "org.apache.bookkeeper.mledger.proto.MLDataFormats$ManagedCursorInfo.hasCursorsLedgerId()" because "other" is null

Stacktrace:

java.lang.NullPointerException: Cannot invoke "org.apache.bookkeeper.mledger.proto.MLDataFormats$ManagedCursorInfo.hasCursorsLedgerId()" because "other" is null

Anything else?

No response

Are you willing to submit a PR?

• I'm willing to submit a PR!