[jira] [Resolved] (HBASE-25465) Use javac --release option for supporting cross version compilation

["Duo Zhang (Jira)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/HBASE-25465?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Duo Zhang resolved HBASE-25465.
-------------------------------
    Hadoop Flags: Reviewed
    Release Note: When compiling with java 11 and above, we will use --release 8 to maintain java 8 compatibility.
      Resolution: Fixed

Pushed to branch-2.5+.

Thanks all for helping and reviewing!

> Use javac --release option for supporting cross version compilation
> -------------------------------------------------------------------
>
>                 Key: HBASE-25465
>                 URL: https://issues.apache.org/jira/browse/HBASE-25465
>             Project: HBase
>          Issue Type: Improvement
>          Components: create-release
>    Affects Versions: 3.0.0-alpha-3
>            Reporter: Andrew Kyle Purtell
>            Assignee: Duo Zhang
>            Priority: Minor
>             Fix For: 2.5.0, 2.6.0, 3.0.0-alpha-3
>
>
> See https://www.morling.dev/blog/bytebuffer-and-the-dreaded-nosuchmethoderror/
> {quote}
>  the Java compiler’s --release parameter, which was introduced via JEP 247 ("Compile for Older Platform Versions"), added to the platform also in JDK 9. In contrast to the more widely known pair of --source and --target, the --release switch will ensure that only byte code is produced which actually will be usable with the specified Java version. For this purpose, the JDK contains the signature data for all supported Java versions (stored in the $JAVA_HOME/lib/ct.sym file).
> {quote}
> Using one JDK (i.e. Java 11) to build Java 8-and-up and Java 11-and-up compatible release artifacts would reduce some sources of accidental complexity, assuming the --release parameter actually works as advertised. To produce Java 8-and-up compatible artifacts, supply --release=8. To produce Java 11-and-up compatible release artifacts, supply --release=11. Maven activations based on JDK version and command line defined profiles can control what --release parameter, if any, should be passed to the compiler. 



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