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https://issues.apache.org/jira/browse/HADOOP-19486?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Cheng Pan updated HADOOP-19486:
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Summary: Fully Support Java 25 (was: Fully Support Java 23, 24 and 25)
> 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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