Releng JIPP fails builds due to using Java 8

As can be seen at https://ci.eclipse.org/releng/job/I-build-4.25/116/console build fails with:

java.lang.UnsupportedClassVersionError: com/trilead/ssh2/ServerHostKeyVerifier has been compiled by a more recent
version of the Java Runtime (class file version 55.0), this version of the Java Runtime only recognizes class file
versions up to 52.0

but Java 11 has been the default one since yesterday.

This seem to be caused by the Jenkins update today we saw here: https://github.com/eclipse-pde/eclipse.pde/pull/266#issuecomment-1203727854

@fgurr @mbarbero : this blocks SDK builds, could we please check what's wrong now with the Jenkins config?

added IT-prioritymedium IT-severitynormal ~24521 statetodo team:releng labels

I'll take a look.

changed the description

AFAICT, the default JDK version of the docker image must be set to JDK11. For the centos8 image, it's currently set to JDK8.

I was not able to set the JDK early enough by either modifying the PATH environment variable or in the tools section.

While debugging that, I also found some oddities in the I-build.groovy script:

• container name was set to jnlp
• container command was not set

Can we revert Jenkins update until we have right docker build? Everything was OK before update.

How one can set default docker JDK for centos image?

Can we revert Jenkins update until we have right docker build? Everything was OK before update.

Creating the right docker image is easier than reverting the Jenkins update. I'm on it.

How one can set default docker JDK for centos image?

In the dockerfile:

RUN alternatives --set java /usr/lib/jvm/java-11-openjdk/bin/java

Any progress on this one? Should we switch to our own container?

We have a solution, but we are still wrangling with a docker build.

Weirdly enough only Cent8 is broken. In another failing job I switched to Cent7 https://ci.eclipse.org/releng/job/deploy-eclipse-platform-parent-pom/jobConfigHistory/showDiffFiles?timestamp1=2022-08-04_01-04-54&timestamp2=2022-08-04_01-06-23 and build worked.

On CentOS 7, JDK11 is already set as the default JDK.

I even wonder whether it's not time to set default JVM to Java 17 nowadays. To prevent same pain in few months.

We will align the JDK version to requirements in Jenkins.

I have opened a PR to change the docker image to CentOS 8 with JDK11:

https://github.com/eclipse-platform/eclipse.platform.releng.aggregator/pull/437

Thanks, SDK build went through now. We can close this ticket.

assigned to @fgurr

closed

removed statetodo label

Fails again, see #1636 (comment 959724) and https://ci.eclipse.org/releng/job/I-build-4.25/128/console

mentioned in issue #1636 (closed)

Not sure why build #126 through #128 used the centos-8 instead of the centos-8-jdk11 image, but the problem seems to be gone since build #129. Please re-open if it happens again.

mentioned in commit heurtemattes/jiro-agents@ec700307