Flaky-test: PersistentSubscriptionTest.testCanAcknowledgeAndCommitForTransaction

[codelipenghui]

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Example failure

https://github.com/apache/pulsar/actions/runs/3087399137/jobs/4996282487

Exception stacktrace

Error: Tests run: 5, Failures: 1, Errors: 0, Skipped: 2, Time elapsed: 2.162 s <<< FAILURE! - in org.apache.pulsar.broker.service.persistent.PersistentSubscriptionTest Error: testCanAcknowledgeAndCommitForTransaction(org.apache.pulsar.broker.service.persistent.PersistentSubscriptionTest) Time elapsed: 0.019 s <<< FAILURE! org.mockito.exceptions.misusing.UnfinishedStubbingException:

Unfinished stubbing detected here: -> at org.apache.pulsar.broker.service.persistent.PersistentSubscriptionTest.testCanAcknowledgeAndCommitForTransaction(PersistentSubscriptionTest.java:258)

E.g. thenReturn() may be missing. Examples of correct stubbing: when(mock.isOk()).thenReturn(true); when(mock.isOk()).thenThrow(exception); doThrow(exception).when(mock).someVoidMethod(); Hints:

1. missing thenReturn()
2. you are trying to stub a final method, which is not supported
3. you are stubbing the behaviour of another mock inside before 'thenReturn' instruction is completed

at org.apache.bookkeeper.mledger.impl.ManagedCursorImpl.asyncMarkDelete(ManagedCursorImpl.java:1842)
at org.apache.pulsar.broker.service.persistent.PersistentSubscriptionTest.testCanAcknowledgeAndCommitForTransaction(PersistentSubscriptionTest.java:263)
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:77)
at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.base/java.lang.reflect.Method.invoke(Method.java:568)
at org.testng.internal.MethodInvocationHelper.invokeMethod(MethodInvocationHelper.java:132)
at org.testng.internal.InvokeMethodRunnable.runOne(InvokeMethodRunnable.java:45)
at org.testng.internal.InvokeMethodRunnable.call(InvokeMethodRunnable.java:73)
at org.testng.internal.InvokeMethodRunnable.call(InvokeMethodRunnable.java:11)
at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264)
at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136)
at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635)
at java.base/java.lang.Thread.run(Thread.java:[833](https://github.com/apache/pulsar/actions/runs/3087399137/jobs/4996282487#step:10:834))

Are you willing to submit a PR?

• [ ] I'm willing to submit a PR!