Istvan Toth created HADOOP-19574:
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             Summary: Restore Subject propagation semantics for Java 22+
                 Key: HADOOP-19574
                 URL: https://issues.apache.org/jira/browse/HADOOP-19574
             Project: Hadoop Common
          Issue Type: Bug
            Reporter: Istvan Toth
            Assignee: Istvan Toth


Java 22 breaks Subject propagation for new Threads (when SecurityManager is not 
enabled).

Previously, the Subject set by Subject.doAs() / Subject.callAs() automaatically 
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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