[
https://issues.apache.org/jira/browse/HADOOP-19486?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=18086939#comment-18086939
]
Rohit Kumar commented on HADOOP-19486:
--------------------------------------
I am thinking of backporting these changes to branch-3.4.
HADOOP-19670 and HADOOP-19547 seems to be the major changes. The rest we can
backport in batches I think.
Hi [~slfan1989], [~chengpan], [~cnauroth], please let me know your thoughts on
this. Let me know if I should follow a particular order for these backports or
if there are any blockers. I am currently thinking of merging these in order of
older to newer PR changes (keeping in mind the dependencies in between).
[~stoty] is no more with us (May he Rest in Peace), so I am taking this
initiative of merging these changes to branch-3.4 from Cloudera side. Thanks
> [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)
--
This message was sent by Atlassian Jira
(v8.20.10#820010)
---------------------------------------------------------------------
To unsubscribe, e-mail: [email protected]
For additional commands, e-mail: [email protected]
