[jira] [Created] (FLINK-39654) Add JDK 25 CI test lane

["Junqing Li (Jira)" <ji...@apache.org>]

Junqing Li created FLINK-39654:
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             Summary: Add JDK 25 CI test lane
                 Key: FLINK-39654
                 URL: https://issues.apache.org/jira/browse/FLINK-39654
             Project: Flink
          Issue Type: Sub-task
          Components: Build System
    Affects Versions: 2.3.0
            Reporter: Junqing Li


Description:

  Building on FLINK-38474 (java25-target profile) and the compilation fixes already resolved under FLINK-37719, this adds infrastructure to run Flink's test suite under JDK 25 in CI.

 

  The CI lane is configured as non-blocking (continue-on-error: true) since several components still have outstanding JDK 25 incompatibilities tracked under FLINK-37719. The purpose is to provide continuous visibility into JDK 25 readiness as fixes land incrementally.

 

  This follows the same approach used for JDK 17 (FLINK-15736) and JDK 21 (FLINK-33163) support.

 

  Scope:

  - Add Zulu 25 toolchain entry to root pom.xml

  - Add parallel JDK 25 lane in .github/workflows/ci.yml (non-blocking)

  - Add Zulu 25 installation in .github/actions/job_init/action.yml

  - Add workflow-caller-id to disambiguate JDK 17 vs JDK 25 build artifacts

  - Add JDK 25 surefire --add-opens/--add-exports flags for flink-core, flink-streaming-java, and flink-runtime

  - Add JDK 25 handling in flink-dist config.sh

 

  Known expected failures (tracked by other FLINK-37719 subtasks):

  - Hadoop-related tests (getSubject) — pending FLINK-30975

  - SecurityManager removal

  - ServiceLoader ClassNotFoundException

  - Netty 4.2 SSL/close-path semantics on JDK 24+



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