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https://issues.apache.org/jira/browse/HADOOP-19495?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17934131#comment-17934131
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ASF GitHub Bot commented on HADOOP-19495:
-----------------------------------------
stoty opened a new pull request, #7495:
URL: https://github.com/apache/hadoop/pull/7495
### Description of PR
Adds JDK23 to Ubuntu 20.04 development docker images.
Also sets the default JDK to 1.8 to be consistent with the existing
JAVA_HOME setting
This patch does not change the JDK used by default (apart from setting up
java/javac alternatives to be consistent with JAVA_HOME), but adds the
possibility to easily switch to JDK23 for testing.
### How was this patch tested?
Ran start-build-env.sh on x86_64 and ARM hosts, and checked that JDK23 is
present and working.
Also checked that the java and javac command on the PATH and JAVA_HOME point
to the same 1.8 JDK.
### For code changes:
- [X ] Does the title or this PR starts with the corresponding JIRA issue id
(e.g. 'HADOOP-17799. Your PR title ...')?
- [ ] Object storage: have the integration tests been executed and the
endpoint declared according to the connector-specific documentation?
- [ ] If adding new dependencies to the code, are these dependencies
licensed in a way that is compatible for inclusion under [ASF
2.0](http://www.apache.org/legal/resolved.html#category-a)?
- [ ] If applicable, have you updated the `LICENSE`, `LICENSE-binary`,
`NOTICE-binary` files?
> Add JDK 23 to Ubuntu 20.04 docker development images
> ----------------------------------------------------
>
> Key: HADOOP-19495
> URL: https://issues.apache.org/jira/browse/HADOOP-19495
> Project: Hadoop Common
> Issue Type: Sub-task
> Components: build
> Reporter: Istvan Toth
> Priority: Major
>
> The first step to supporting JDK23 is being able to test it.
> Add JDK23 to the default docker images, so that both manual and automated
> testing is possible.
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