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https://issues.apache.org/jira/browse/HADOOP-19574?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=18019298#comment-18019298
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ASF GitHub Bot commented on HADOOP-19574:
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stoty commented on PR #7892:
URL: https://github.com/apache/hadoop/pull/7892#issuecomment-3273592159
Yes, the solution you propose works @szetszwo , but it's more complex and
error-prone ot implement than the current one.
Now we are juggling two thread objects, and it is very easy to start the
wrong one, especially when you're converting hundreds of threads.
> Restore Subject propagation semantics for Java 22+
> --------------------------------------------------
>
> Key: HADOOP-19574
> URL: https://issues.apache.org/jira/browse/HADOOP-19574
> Project: Hadoop Common
> Issue Type: Improvement
> Reporter: Istvan Toth
> Assignee: Istvan Toth
> Priority: Critical
> Labels: pull-request-available
>
> Java 22 breaks Subject propagation for new Threads (when SecurityManager is
> not enabled).
> Previously, the Subject set by Subject.doAs() / Subject.callAs()
> automatically propagated to any new Threads created (via new Thread(), not
> Executors).
> With JDK22, this is no longer the case, new Threads do NOT inherit the
> Subject.
> As Hadoop heavily relies on the original behavior, we somehow need to solve
> this problem.
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