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https://issues.apache.org/jira/browse/KAFKA-17723?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17941398#comment-17941398
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Chia-Ping Tsai commented on KAFKA-17723:
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backport to 3.9
https://github.com/apache/kafka/commit/fd4c90a7c9c9eda8b15a3f907405d1118a76a7ed
> Fix "this-escape" compiler warnings (MultiThreadedEventProcessor and
> DistributedHerder) for JDK 23
> --------------------------------------------------------------------------------------------------
>
> Key: KAFKA-17723
> URL: https://issues.apache.org/jira/browse/KAFKA-17723
> Project: Kafka
> Issue Type: Sub-task
> Reporter: Chia-Ping Tsai
> Assignee: Anshul Goyal
> Priority: Minor
> Fix For: 4.0.0, 3.9.1
>
>
> {code:java}
> > Task :coordinator-common:compileJava FAILED
> /root/kafka/coordinator-common/src/main/java/org/apache/kafka/coordinator/common/runtime/MultiThreadedEventProcessor.java:107:
> warning: [this-escape] possible 'this' escape before subclass is fully
> initialized
> this.threads = IntStream.range(0, numThreads).mapToObj(threadId ->
> ^
> error: warnings found and -Werror specified
> {code}
> {code:java}
> > Task :connect:runtime:compileJava
> /root/kafka/connect/runtime/src/main/java/org/apache/kafka/connect/runtime/distributed/DistributedHerder.java:269:
> warning: [this-escape] possible 'this' escape before subclass is fully
> initialized
> this(config, worker, worker.workerId(), kafkaClusterId,
> statusBackingStore, configBackingStore, null, restUrl, restClient,
> worker.metrics(),
> ^
> /root/kafka/connect/runtime/src/main/java/org/apache/kafka/connect/runtime/distributed/DistributedHerder.java:318:
> warning: [this-escape] previous possible 'this' escape happens here via
> invocation
> new RebalanceListener(time), time, clientId,
> logContext);
> {code}
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