Switch jenkins jobs to JDK 25

[dweiss]

Make sure jenkins workflows/ machines are ready to handle jdk 25:

• Uwe's policeman jenkins
• ASF machines

switch job definitions to use Java 25:

• Uwe's policeman jenkins
• ASF machines

[dweiss]

Seems like ASF runners are prepared:

although the Java version they use is outdated:

[dweiss]

@uschindler - will you be able to switch policeman jenkins to Java 25 or at least stop the jobs that run the main branch until you can? I wouldn't want to flood the mailing list with failures.

There is no rush. I think I'll switch ASF jobs tomorrow (or turn them off in anticipation of the switch).

[uschindler]

The switch to 25 is not too complicated. You can disable the jobs if want to merge. Forbiddenapis takes a while (waiting for ASM).

But ASF Jenkins is too outdated. That's not 25, that's 24½. This is the bigger problem.

[uschindler]

Hi,
I prepared everything to switch Gradle runner JVM and also added new randomization settings for Java 25+. I can switch them if you give me a message shortly before you want to switch. Ideally on Google Chat.

I also installed latest jdk-26-ea+17.

P.S.: For which Java versions should I enable ZGC, too? JDK 17 was very broken with Lucene haven't tested later. Maybe starting with 21?

[dweiss]

I've asked infra to update Java to an official release: https://issues.apache.org/jira/browse/INFRA-27288

[uschindler]

I also asked for s390x.

[dweiss]

Ok, my plan is to disable these jobs entirely:
https://ci-builds.apache.org/job/Lucene/job/Lucene-Artifacts-10.2/
https://ci-builds.apache.org/job/Lucene/job/Lucene-Artifacts-10.3/
https://ci-builds.apache.org/job/Lucene/job/Lucene-Check-10.2/
https://ci-builds.apache.org/job/Lucene/job/Lucene-Check-10.3/
https://ci-builds.apache.org/job/Lucene/job/Lucene-Maven-Snapshots-10.2/
https://ci-builds.apache.org/job/Lucene/job/Lucene-Maven-Snapshots-10.3/

and to disable, then switch these to Java 25 (if they work):
https://ci-builds.apache.org/job/Lucene/job/Lucene-Artifacts-main/
https://ci-builds.apache.org/job/Lucene/job/Lucene-Check-main/
https://ci-builds.apache.org/job/Lucene/job/Lucene-Check-main%20(s390x%20big%20endian)/
https://ci-builds.apache.org/job/Lucene/job/Lucene-Coverage-main/
https://ci-builds.apache.org/job/Lucene/job/Lucene-Maven-Snapshots-main/
https://ci-builds.apache.org/job/Lucene/job/Lucene-MMAPv2-Linux%20(s390x%20big%20endian)/
https://ci-builds.apache.org/job/Lucene/job/Lucene-NightlyTests-main/

I know Java 25 is way behind the official release on infra but if it works, we can enable those jobs and wait for infra updates. If these jobs don't work, we'll keep them turned off on main (Uwe's machine works and github works) until JDK 25 is upgraded.

[dweiss]

I'm ready to merge #15238 to main. I'll wait for green light from you, @uschindler

[uschindler]

I know Java 25 is way behind the official release on infra but if it works, we can enable those jobs and wait for infra updates. If these jobs don't work, we'll keep them turned off on main (Uwe's machine works and github works) until JDK 25 is upgraded.

It won't work, you can try it, but this will definitely hit (for a good reason):

lucene/build-tools/build-infra/src/main/java/org/apache/lucene/gradle/plugins/misc/CheckEnvironmentPlugin.java

Lines 68 to 78 in 46a43cd

	if (Runtime.version().pre().isPresent()) {
	throw new GradleException(
	String.format(
	Locale.ROOT,
	"You are running Gradle with an EA version of Java - this is not supported. "
	+ "To test Lucene compatibility with EA or pre-release versions, see this help guide: "
	+ " './gradlew helpJvms'. Detected Java version: "
	+ "[%s %s]",
	System.getProperty("java.vm.name"),
	System.getProperty("java.vm.version")));
	}

We added that because the last time we updated to 24 ASF Infra had same problem and it caused very stange error messages.

[uschindler]

I'm ready to merge #15238 to main. I'll wait for green light from you, @uschindler

🟢 => jobs were disabled, I am updating them as soon as it is merged.

P.S.: I posted on the forbiddenapis issue that you can use with currenmt version (it is compatible, only signatures are missing), just add version 24 to signatures with manual config. Easiest is to set targetVersion property of forbiddenApis to 24 temporarily.

[uschindler]

First build running. One failure, because I did not approve the Groovy Script for randomization (Java 25+)

[uschindler]

Success:

• Linux: https://jenkins.thetaphi.de/job/Lucene-main-Linux/58906/consoleFull
• Windows: https://jenkins.thetaphi.de/job/Lucene-main-Windows/16966/consoleFull