Istvan Toth created HADOOP-19486:
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Summary: Fully Support Java 24
Key: HADOOP-19486
URL: https://issues.apache.org/jira/browse/HADOOP-19486
Project: Hadoop Common
Issue Type: Improvement
Reporter: Istvan Toth
Hadoop trunk today mostly supports JDK17, but doesn't work at all on JDK23.
(and conversely on JDK24 released in less than two weeks)
While there are many smaller issues, the major breaking change is the
SecurityManager removal (JEP411/486), and its many consequences.
The obvious change is that Subjec.doAs() and Subject.current() no longer work
by default, and the replacement APIs must be used.
The more insidius change is that when SecurityManager is disabled then JDK22+
does not propapage the Subject to new Threads, which is something that Hadoop
absolutely relies on.
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