Add Java25 container

[Abacn]

#35627

need a Beam master container release after this change

Tested with Dataflow runner v2 job (job id: 2025-10-01_11_00_05-9085012090506374637)

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[gemini-code-assist]

Summary of Changes

Hello @Abacn, I'm Gemini Code Assist¹! I'm currently reviewing this pull request and will post my feedback shortly. In the meantime, here's a summary to help you and other reviewers quickly get up to speed!

This pull request integrates support for Java 25 into the project's container build system. It establishes the necessary build configurations, security settings, and JVM options for a Java 25 container, and updates the internal Java version management to recognize and default to Java 25 for newer or unspecified Java environments. This enhancement ensures compatibility and readiness for future Java releases.

Highlights

• Java 25 Container Support: Introduced a new Java 25 container, including its build configuration, security properties, and JVM options.
• Build System Updates: Modified build.gradle files to incorporate the new Java 25 container into the build and push processes, including a placeholder for a future distroless Java 25 container.
• Java Version Handling: Updated the JavaVersion enum in Environments.java to include Java 25 and adjusted the default fallback logic to prefer Java 25 for unspecified or newer versions.
• Test Coverage: Added and updated unit tests to ensure correct resolution and handling of Java 25 and other non-LTS Java versions.

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[github-actions]

Assigning reviewers:

R: @ahmedabu98 for label java.

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[Abacn]

R: @damccorm @Amar3tto

[github-actions]

Stopping reviewer notifications for this pull request: review requested by someone other than the bot, ceding control. If you'd like to restart, comment assign set of reviewers

[damccorm]

LGTM other than the security.properties question

[damccorm]

Could you open a jira like https://issues.apache.org/jira/browse/INFRA-27219?page=com.atlassian.jira.plugin.system.issuetabpanels%3Aall-tabpanel to get the java 25 dockerhub repo added?

Probably worth just asking for distroless as well even if we don't populate it for a while.

[Abacn]

Thanks for reminding that, opened INFRA-27303

[damccorm]

Should this point to java25-security.properties?

[Abacn]

good catch, fixed

[damccorm]

Thanks!