Flaky-test: SchemaTest.testDeleteTopicAndSchemaForV1

[codelipenghui]

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• [X] I searched in the issues and found nothing similar.

Example failure

https://github.com/apache/pulsar/runs/7778849865?check_suite_focus=true

Exception stacktrace

  Error:  Tests run: 56, Failures: 1, Errors: 0, Skipped: 51, Time elapsed: 87.642 s <<< FAILURE! - in org.apache.pulsar.schema.SchemaTest
  Error:  testDeleteTopicAndSchemaForV1(org.apache.pulsar.schema.SchemaTest)  Time elapsed: 0.289 s  <<< FAILURE!
  java.lang.AssertionError: expected [true] but found [false]
    at org.testng.Assert.fail(Assert.java:99)
    at org.testng.Assert.failNotEquals(Assert.java:1037)
    at org.testng.Assert.assertTrue(Assert.java:45)
    at org.testng.Assert.assertTrue(Assert.java:55)
    at org.apache.pulsar.schema.SchemaTest.testDeleteTopicAndSchemaForV1(SchemaTest.java:845)
    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)

Are you willing to submit a PR?

• [ ] I'm willing to submit a PR!

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