[jira] [Commented] (CALCITE-5737) Support JDK 20

["Sergey Nuyanzin (Jira)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/CALCITE-5737?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17729310#comment-17729310 ] 

Sergey Nuyanzin commented on CALCITE-5737:
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After looking a bit more it seems like Gradle itself doesn't have full support of JDK 20 especially for cases when Kotlin is used
https://github.com/gradle/gradle/issues/23488 (in the issue itself there an estimation not earlier than July)

Another way to do it (mentioned in comments) is usage of toolchains.




> Support JDK 20
> --------------
>
>                 Key: CALCITE-5737
>                 URL: https://issues.apache.org/jira/browse/CALCITE-5737
>             Project: Calcite
>          Issue Type: Bug
>            Reporter: Julian Hyde
>            Priority: Major
>             Fix For: 1.35.0
>
>
> Support JDK 20.
> We currently support JDK (and OpenJDK) versions up to 18. (CALCITE-5747 will add support for JDK 19.) JDK 20 is the latest. We should support JDK 20 in Calcite 1.35 if possible, or soon after.
> This change would modify history.md (for the upcoming release), add JDK 20 to the GitHub CI, and fix the build. There are deprecation warnings (which we treat as errors) regarding the java.net.URL constructor.



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