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https://issues.apache.org/jira/browse/KAFKA-17929?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17897756#comment-17897756
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Matthias J. Sax commented on KAFKA-17929:
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Is this still an issue with Java 11 – we are dropping Java 8 support with 4.0.0
release.
> `awaitProcessableTasks` is not safe in the presence of spurious wakeups.
> ------------------------------------------------------------------------
>
> Key: KAFKA-17929
> URL: https://issues.apache.org/jira/browse/KAFKA-17929
> Project: Kafka
> Issue Type: Bug
> Components: streams
> Reporter: Ao Li
> Priority: Major
>
> According to JDK, `await` can be unblocked due to spurious wakeups
> https://docs.oracle.com/javase/8/docs/api/java/util/concurrent/locks/Condition.html
> Currently `DefaultTaskManager::awaitProcessableTasks` does not handle this
> scenario. Branch https://github.com/aoli-al/kafka/tree/KAFKA-82 shows a
> failing test because of this
> Command: ./gradlew :streams:test --tests
> DefaultTaskManagerTest.shouldBlockOnAwait
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