[Bug] When the topic name is four-paragraph and the namespace does not exist, the topic can also be produced and consumed normally

[zjxxzjwang]

Search before asking

• I searched in the issues and found nothing similar.

Read release policy

• 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

pulsar:4.0.1
java-sdk:2.9.2

Minimal reproduce step

Producer<byte[]> producer = myClient.newProducer().
topic("persistent://wzjtest-tenant/cluster/test-ns/topic").create();

What did you expect to see?

Not found: Namespace not found

What did you see instead?

Can produce and consume normally

Anything else?

No response

Are you willing to submit a PR?

• I'm willing to submit a PR!

[lhotari]

Is this related to #23620 or #23594?

[lhotari]

java-sdk:2.9.2

It's recommended to use supported versions.