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https://issues.apache.org/jira/browse/HADOOP-19574?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=18019765#comment-18019765
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ASF GitHub Bot commented on HADOOP-19574:
-----------------------------------------
stoty commented on PR #7892:
URL: https://github.com/apache/hadoop/pull/7892#issuecomment-3283717527
> @stoty I’d like to confirm with you whether you’d prefer us to create a
separate development branch for you.
>
> Pan and I had an offline discussion on this topic. He believes the changes
are manageable and therefore a separate branch may not be necessary. I think
his point makes sense to some extent, but from the perspective of development
efficiency and risk control, I would still recommend creating a dedicated
development branch. This would allow us to iterate more quickly without
impacting existing functionality.
I don't think a separate branch is necessary, @slfan1989 .
These changes are designed to be transparent, especially now that we've
added a shortcut to avoid the subject manipulation for Java 21 and earlier, as
suggested by @szetszwo .
IF this breaks anything, we can find and fix that faster once it's in trunk.
Any changes affecting Java 8/11 will be causght by the existing CI
processes, and we can also start work on setting up CI for Java 17/21/25 and
start working out any such issues.
Users will alse have an easier time testing Hadoop with Java 21/25 in their
use cases once it's supported on trunk.
> 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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