gax-java(mac-os): BatcherImplTest.testThrottlingBlocking- adding elements to batcher should be blocked by FlowControlled

[github-actions]

The build has failed : https://github.com/googleapis/gapic-generator-java/actions/runs/5897706299

[lqiu96]

Error:

Error:  Failures: 
Error:    BatcherImplTest.testThrottlingBlocking:886 adding elements to batcher should be blocked by FlowControlled

[suztomo]

I fixed another concurrency issue of the same test in #1193. Let's revisit this bug when we observe another occurrence.

[mpeddada1]

Re-opening this issue. Looks like this particular error persists. We recently ran into this issue in #2057. cc/ @suztomo if you have any insights?

[suztomo]

With 2285, I was able to reproduce the issue in my Mac.

~/sdk-platform-java $ (repeat 100 mvn test -pl gax-java/gax -Dtest="BatcherImplTest#testThrottlingBlocking" -Denforcer.skip=true -Dfmt.skip=true -Dcheckstyle.skip=true) |tee /tmp/test.log

...

[INFO] Running com.google.api.gax.batching.BatcherImplTest
2023 1:24:02.786 com.google.api.gax.batching.BatcherImplTest testThrottlingBlocking INFO: Calling future.get(10 ms)
2023 1:24:02.841 com.google.api.gax.batching.BatcherImplTest lambda$testThrottlingBlocking$0 INFO: Calling flowController.release
2023 1:24:02.841 com.google.api.gax.batching.BatcherImplTest lambda$testThrottlingBlocking$0 INFO: Called flowController.release
2023 1:24:02.843 com.google.api.gax.batching.BatcherImplTest testThrottlingBlocking INFO: future.get(10 ms) unexpectedly returned.
...
[INFO] 
[INFO] Results:
[INFO] 
[ERROR] Failures: 
[ERROR]   BatcherImplTest.testThrottlingBlocking:905 adding elements to batcher should be blocked by FlowControlled

(The repeat command is zsh)

3 invocations failed out of 100.