Jenkins 代理上的 java 版本不正确

Question

我已经设置了一个基本的 jenkins 代理作为与 jenkins 控制器连接的 docker 容器。我想在代理上设置 Java 不同的 java 版本 (

jdk-21.0.2

)，默认情况下有

Temurin-17.0.8.1

。 我设置了一个不同的 java，但是当使用像这样的简单作业脚本检查 Java 时

pipeline {
    agent { label 'docker-agent1' }
    tools { 
        jdk 'jdk-21.0.2' 
    }
    stages {
        stage('Java test') {
            steps {
                sh '''
                    env | grep -e PATH -e JAVA_HOME
                    which java
                    java -version
                '''
            }
        }
    }
}

它给了我以下输出。注意

java -version

 命令的输出。它为我提供了代理上默认设置的 java 版本。

 Started by user admin
[Pipeline] Start of Pipeline
[Pipeline] node
Running on docker-agent1 in /home/jenkins/workspace/java-test-agent1
[Pipeline] {
[Pipeline] stage
[Pipeline] { (Declarative: Tool Install)
[Pipeline] tool
Unpacking https://download.java.net/java/GA/jdk21.0.2/f2283984656d49d69e91c558476027ac/13/GPL/openjdk-21.0.2_linux-x64_bin.tar.gz to /home/jenkins/tools/hudson.model.JDK/jdk-21.0.2 on docker-agent1
[Pipeline] envVarsForTool
[Pipeline] }
[Pipeline] // stage
[Pipeline] withEnv
[Pipeline] {
[Pipeline] stage
[Pipeline] { (Java test)
[Pipeline] tool
[Pipeline] envVarsForTool
[Pipeline] withEnv
[Pipeline] {
[Pipeline] sh
+ env
+ grep -e PATH -e JAVA_HOME
LD_LIBRARY_PATH=/opt/java/openjdk/lib/server:/opt/java/openjdk/lib:/opt/java/openjdk/../lib
PATH=/home/jenkins/tools/hudson.model.JDK/jdk-21.0.2/jdk-21.0.2/bin:/home/jenkins/tools/hudson.model.JDK/jdk-21.0.2/jdk-21.0.2/bin:/opt/java/openjdk/bin:/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin
JAVA_HOME=/home/jenkins/tools/hudson.model.JDK/jdk-21.0.2/jdk-21.0.2
+ which java
/home/jenkins/tools/hudson.model.JDK/jdk-21.0.2/jdk-21.0.2/bin/java
+ java -version
openjdk version "17.0.8.1" 2023-08-24
OpenJDK Runtime Environment Temurin-17.0.8.1+1 (build 17.0.8.1+1)
OpenJDK 64-Bit Server VM Temurin-17.0.8.1+1 (build 17.0.8.1+1, mixed mode)
[Pipeline] }
[Pipeline] // withEnv
[Pipeline] }
[Pipeline] // stage
[Pipeline] }
[Pipeline] // withEnv
[Pipeline] }
[Pipeline] // node
[Pipeline] End of Pipeline
Finished: SUCCESS

知道为什么找不到 Java 版本吗

jdk-21.0.2

附加信息： 这是我在

jdk-21.0.2

中设置

Manage Jenkins -> Tools

的方法

Answer 1

如果 PATH 中有另一个 java 可执行文件在 JDK 21.0.2 中的可执行文件之前被拾取，则会发生这种情况

检查路径变量并更新它或

使用绝对路径，您可以在 Jenkins 管道脚本中指定 java 可执行文件的绝对路径，而不是依赖 PATH 环境变量。例如：

时髦

steps {
    sh '''
        /home/jenkins/tools/hudson.model.JDK/jdk-21.0.2/jdk-21.0.2/bin/java -version
    '''
}