Flaky-test: BrokerDispatchRateLimiterTest.testBrokerDispatchThrottledMetrics

[lhotari]

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Example failure

https://github.com/apache/pulsar/actions/runs/20657650595/job/59313928001?pr=25104#step:11:1019

Exception stacktrace

Error:  Tests run: 5, Failures: 1, Errors: 0, Skipped: 4, Time elapsed: 27.86 s <<< FAILURE! -- in org.apache.pulsar.broker.service.BrokerDispatchRateLimiterTest
  Error:  org.apache.pulsar.broker.service.BrokerDispatchRateLimiterTest.testBrokerDispatchThrottledMetrics -- Time elapsed: 9.457 s <<< FAILURE!
  java.io.IOException: java.util.concurrent.ExecutionException: org.mockito.exceptions.misusing.DisabledMockException: Mock accessed after inline mocks were cleared
  	at org.apache.pulsar.PrometheusMetricsTestUtil.generate(PrometheusMetricsTestUtil.java:63)
  	at org.apache.pulsar.PrometheusMetricsTestUtil.generate(PrometheusMetricsTestUtil.java:40)
  	at org.apache.pulsar.broker.service.BrokerDispatchRateLimiterTest.testBrokerDispatchThrottledMetrics(BrokerDispatchRateLimiterTest.java:113)
  	at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103)
  	at java.base/java.lang.reflect.Method.invoke(Method.java:580)
  	at org.testng.internal.invokers.MethodInvocationHelper.invokeMethod(MethodInvocationHelper.java:139)
  	at org.testng.internal.invokers.InvokeMethodRunnable.runOne(InvokeMethodRunnable.java:47)
  	at org.testng.internal.invokers.InvokeMethodRunnable.call(InvokeMethodRunnable.java:76)
  	at org.testng.internal.invokers.InvokeMethodRunnable.call(InvokeMethodRunnable.java:11)
  	at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:317)
  	at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1144)
  	at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:642)
  	at java.base/java.lang.Thread.run(Thread.java:1583)
  Caused by: java.util.concurrent.ExecutionException: org.mockito.exceptions.misusing.DisabledMockException: Mock accessed after inline mocks were cleared
  	at java.base/java.util.concurrent.CompletableFuture.reportGet(CompletableFuture.java:396)
  	at java.base/java.util.concurrent.CompletableFuture.get(CompletableFuture.java:2096)
  	at org.apache.pulsar.PrometheusMetricsTestUtil.generate(PrometheusMetricsTestUtil.java:58)
  	... 12 more
  Caused by: org.mockito.exceptions.misusing.DisabledMockException: Mock accessed after inline mocks were cleared
  	at org.apache.pulsar.broker.PulsarService.getConfig(PulsarService.java:215)
  	at org.apache.pulsar.broker.service.BrokerService.getPendingLookupRequest(BrokerService.java:513)
  	at org.apache.pulsar.broker.stats.prometheus.metrics.ObserverGauge.collect(ObserverGauge.java:96)
  	at io.prometheus.client.Collector.collect(Collector.java:45)
  	at io.prometheus.client.CollectorRegistry$MetricFamilySamplesEnumeration.findNextElement(CollectorRegistry.java:204)
  	at io.prometheus.client.CollectorRegistry$MetricFamilySamplesEnumeration.nextElement(CollectorRegistry.java:219)
  	at io.prometheus.client.CollectorRegistry$MetricFamilySamplesEnumeration.nextElement(CollectorRegistry.java:152)
  	at org.apache.pulsar.broker.stats.prometheus.PrometheusMetricsGeneratorUtils.generateSystemMetrics(PrometheusMetricsGeneratorUtils.java:60)
  	at org.apache.pulsar.broker.stats.prometheus.PrometheusMetricsGenerator.generateMetrics(PrometheusMetricsGenerator.java:326)
  	at org.apache.pulsar.broker.stats.prometheus.PrometheusMetricsGenerator.lambda$renderToBuffer$0(PrometheusMetricsGenerator.java:538)
  	at com.google.common.util.concurrent.DirectExecutor.execute(DirectExecutor.java:30)
  	at org.apache.pulsar.broker.stats.prometheus.PrometheusMetricsGenerator.renderToBuffer(PrometheusMetricsGenerator.java:536)
  	at org.apache.pulsar.PrometheusMetricsTestUtil.generate(PrometheusMetricsTestUtil.java:54)
  	... 12 more

Additional Context

This problem should have been addressed with PR #24257.

Are you willing to submit a PR?

• I'm willing to submit a PR!