nodece opened a new pull request, #24758:
URL: https://github.com/apache/pulsar/pull/24758
### Motivation
Fix NPE:
```
java.lang.NullPointerException: Cannot invoke
"java.util.concurrent.atomic.AtomicInteger.incrementAndGet()" because the
return value of "java.util.Map.get(Object)" is null
at
org.apache.pulsar.broker.service.SystemTopicBasedTopicPoliciesService.addOwnedNamespaceBundleAsync(SystemTopicBasedTopicPoliciesService.java:405)
~[pulsar-broker.jar:3.0.14-SNAPSHOT]
at
org.apache.pulsar.broker.service.SystemTopicBasedTopicPoliciesService$2.onLoad(SystemTopicBasedTopicPoliciesService.java:509)
~[pulsar-broker.jar:3.0.14-SNAPSHOT]
at
org.apache.pulsar.broker.namespace.NamespaceService.notifyNamespaceBundleOwnershipListener(NamespaceService.java:1322)
~[pulsar-broker.jar:3.0.14-SNAPSHOT]
at
org.apache.pulsar.broker.namespace.NamespaceService.onNamespaceBundleOwned(NamespaceService.java:1285)
~[pulsar-broker.jar:3.0.14-SNAPSHOT]
at
org.apache.pulsar.broker.namespace.OwnershipCache.lambda$tryAcquiringOwnership$3(OwnershipCache.java:218)
~[pulsar-broker.jar:3.0.14-SNAPSHOT]
at
java.util.concurrent.CompletableFuture.uniApplyNow(CompletableFuture.java:684)
~[?:?]
at
java.util.concurrent.CompletableFuture.uniApplyStage(CompletableFuture.java:662)
~[?:?]
at
java.util.concurrent.CompletableFuture.thenApply(CompletableFuture.java:2168)
~[?:?]
at
org.apache.pulsar.broker.namespace.OwnershipCache.tryAcquiringOwnership(OwnershipCache.java:216)
~[pulsar-broker.jar:3.0.14-SNAPSHOT]
at
org.apache.pulsar.broker.namespace.NamespaceService.searchForCandidateBroker(NamespaceService.java:631)
~[pulsar-broker.jar:3.0.14-SNAPSHOT]
at
org.apache.pulsar.broker.namespace.NamespaceService.lambda$findBrokerServiceUrl$10(NamespaceService.java:466)
~[pulsar-broker.jar:3.0.14-SNAPSHOT]
at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539)
~[?:?]
at java.util.concurrent.FutureTask.run(FutureTask.java:264) ~[?:?]
at
java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304)
~[?:?]
at
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136)
~[?:?]
at
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635)
~[?:?]
at
io.netty.util.concurrent.FastThreadLocalRunnable.run(FastThreadLocalRunnable.java:30)
~[netty-common-4.1.124.Final.jar:4.1.124.Final]
at java.lang.Thread.run(Thread.java:840) ~[?:?]
```
### Modifications
- Replaced direct `ownedBundlesCountPerNamespace.get(...).incrementAndGet()`
with
`computeIfAbsent(namespace, k -> new AtomicInteger(0))` to ensure the
counter is always initialized before incrementing.
### Documentation
<!-- DO NOT REMOVE THIS SECTION. CHECK THE PROPER BOX ONLY. -->
- [ ] `doc` <!-- Your PR contains doc changes. -->
- [ ] `doc-required` <!-- Your PR changes impact docs and you will update
later -->
- [x] `doc-not-needed` <!-- Your PR changes do not impact docs -->
- [ ] `doc-complete` <!-- Docs have been already added -->
--
This is an automated message from the Apache Git Service.
To respond to the message, please log on to GitHub and use the
URL above to go to the specific comment.
To unsubscribe, e-mail: commits-unsubscr...@pulsar.apache.org
For queries about this service, please contact Infrastructure at:
us...@infra.apache.org
