Using OpenJDK 12 in Jenkins (Docker version)

Question

I tried to install OpenJDK 12 in jenkins, with *.tar.gz installer but i get the error Cannot run program "/bin/java"

JAVA_HOME=/var/jenkins_home/tools/hudson.model.JDK/java12

Note I created the directory "hudson.model.JDK" myself.

here is the tool configuration

full error log

Answer 1

JDK Tool Plugin in Jenkins only support the automatic download of version up to Java SDK 1.9 so I will write the process made by me in order to config OpenJDK-11(I'm using this specific version but another version can be used) in a Jenkins running in a Docker container:

1. Login into the host server where the docker container is running using SSH service.
2. Check the running containers with the command: docker ps
3. Get in into the Jenkins container with the command(in my case, the container name is "jenkins"): docker exec -it containerName /bin/bash
4. Download the OpenJDK 11: cd /usr/local && wget https://download.java.net/openjdk/jdk11/ri/openjdk-11+28_linux-x64_bin.tar.gz
5. Unpack the downloaded file: tar -zxvf openjdk-11+28_linux-x64_bin.tar.gz
6. Now you will have a folder "jdk-11" under /usr/local.
7. Go to Global Tools Configuration in Jenkins and set up the SDK config like the showed image:

8. Now you can make use of a different version of Java SDK in Jenkins builds using as label "Java SE 11".