Run workflow with Java 24 instead of 23, in addition to LTS versions …

[jamesfredley]

…17 and 21

24 was released on March 18, 2025

[Copilot]

Pull Request Overview

This PR updates the Java version in the GitHub workflows to run tests with Java 24 instead of Java 23, aligning with the release on March 18, 2025.

• Updated the matrix configuration for Java versions in two job definitions from [17, 21, 23] to [17, 21, 24].
• Adjusted the runner configuration for Ubuntu to ubuntu-24.04.

Comments suppressed due to low confidence (2)

.github/workflows/gradle.yml:63

• Ensure that the selected runner images (ubuntu-latest, windows-latest, macos-latest) support Java 24, as this update could affect build consistency across OS environments.

java: [ 17, 21, 24 ]

.github/workflows/gradle.yml:92

• Confirm that all jobs using Java 24 have the appropriate caching and dependency management configured to handle the new runtime version.

java: [ 17, 21, 24 ]

[jdaugherty]

I don't think we can do this until Groovy supports Java 24.

[matrei]

I don't think we can do this until Groovy supports Java 24.

Does Groovy 4 even officially support Java 17?

Groovy 4.0 requires Java 8+ with support for up to Java 16.
https://groovy-lang.org/install.html

[matrei]

The tests pass so let's do this!

[jamesfredley]

Groovy is testing master with 24 and 25:
https://github.com/apache/groovy/blob/master/.github/workflows/groovy-build-test.yml#L58
https://github.com/apache/groovy/blob/master/.github/workflows/groovy-build-test.yml#L80

But are not currently testing 24 on GROOVY_4_0_X: https://github.com/apache/groovy/blob/GROOVY_4_0_X/.github/workflows/groovy-build-test.yml#L56

I am following up to confirm Java 24 support and then will update this PR.

[jamesfredley]

Spring Boot is building with Java 24 against 3.5.x and 3.4.x:

3.5.x: https://github.com/spring-projects/spring-boot/blob/main/.github/workflows/ci.yml
3.4.x: https://github.com/spring-projects/spring-boot/blob/3.4.x/.github/workflows/ci.yml#L28

Spring Boot 3.4.5 requires at least Java 17 and is compatible with versions up to and including Java 24

https://docs.spring.io/spring-boot/system-requirements.html

Spring Boot 3.5.0-RC1 requires at least Java 17 and is compatible with versions up to and including Java 24.

https://docs.spring.io/spring-boot/3.5/system-requirements.html

And Spring Framework 6.2.x will support JDK 17-25 (expected). https://github.com/spring-projects/spring-framework/wiki/Spring-Framework-Versions#jdk-version-range