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https://issues.apache.org/jira/browse/HADOOP-19486?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=18040814#comment-18040814
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Aurélien Pupier commented on HADOOP-19486:
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as a follow-up, [https://github.com/apache/hadoop/pull/7892] has been closed
mentioned as most of it already merged and remaining part on
[https://github.com/apache/hadoop/pull/8062] which is merged too.
the last other related issue mentioned is JDK 17 support which has not been
updated since 2023 and I think it was already working)
Are there other known issues with JDK 25?
> [JDK25] Fully Support Java 25
> -----------------------------
>
> Key: HADOOP-19486
> URL: https://issues.apache.org/jira/browse/HADOOP-19486
> Project: Hadoop Common
> Issue Type: Improvement
> Reporter: Istvan Toth
> Assignee: Istvan Toth
> Priority: Major
>
> Hadoop trunk today mostly supports JDK17, but doesn't work at all on JDK23.
> (and conversely on JDK24 to be 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.
> Note that Hadoop is always built with with JDK 17 (if the JDK is 17 or
> newer), unless the target version is specifically overriden.
> This is not a problem, JDK17 class files running on a JDK 24 JVM is the
> expected use case for binary distributions.
> We may want to run some tests where Hadoop is also compiled for the lastest
> JVM later. (taget Java 24 + JVM 24)
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