JDK configuration in Jenkins - Interactive Code Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the code to set the JDK version in Jenkins pipeline.

Jenkins

pipeline {
  agent any
  tools {
    jdk '[1]'
  }
  stages {
    stage('Build') {
      steps {
        echo 'Building with JDK'
      }
    }
  }
}

Drag options to blanks, or click blank then click option'

AJDK8

BJDK14

CJDK7

DJDK11

Attempts:

3 left

💡 Hint

Common Mistakes

Using a JDK version not installed or configured in Jenkins.

Misspelling the JDK name.

The correct JDK version to set here is JDK11, which is commonly used and supported in Jenkins pipelines.

2fill in blank

medium

Complete the code to define a JDK tool in Jenkins global configuration using Groovy script.

Jenkins

import jenkins.model.*
import hudson.tools.*

Jenkins.instance.getDescriptorByType(hudson.tools.JDK.DescriptorImpl.class).setInstallations(
  new JDK('[1]', null)
)
Jenkins.instance.save()

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AJDK11

BOpenJDK

COracleJDK

DJDK 1.8

Attempts:

3 left

💡 Hint

Common Mistakes

Using names with spaces which Jenkins does not accept.

Using names that do not match any configured JDK.

The JDK name must match the configured tool name. JDK11 is a typical name used for JDK 11 installations.

3fill in blank

hard

Fix the error in the Jenkins pipeline snippet to use the JDK tool correctly.

Jenkins

pipeline {
  agent any
  tools {
    jdk '[1]'
  }
  stages {
    stage('Test') {
      steps {
        sh 'java -version'
      }
    }
  }
}

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Ajdk-11

BJDK11

Cjdk11

DJava11

Attempts:

3 left

💡 Hint

Common Mistakes

Using lowercase or hyphenated names that do not match the configured tool.

Using generic names like 'Java11' which are not configured.

The JDK tool name is case-sensitive and must match exactly the configured name, which is JDK11.

4fill in blank

hard

Fill both blanks to configure a JDK tool and use it in a Jenkins pipeline.

Jenkins

pipeline {
  agent any
  tools {
    jdk '[1]'
  }
  stages {
    stage('Compile') {
      steps {
        sh '[2] -version'
      }
    }
  }
}

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AJDK11

Bjava

Cjavac

DJDK8

Attempts:

3 left

💡 Hint

Common Mistakes

Using 'javac' instead of 'java' for version check.

Using wrong JDK tool names.

The JDK tool name is JDK11, and the command to check the version is java.

5fill in blank

hard

Fill all three blanks to define a JDK tool, set it in the pipeline, and run a build command.

Jenkins

pipeline {
  agent any
  tools {
    jdk '[1]'
  }
  stages {
    stage('Build') {
      steps {
        sh '[2] [3]'
      }
    }
  }
}

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AJDK11

Bjava

C-version

Dmvn

Attempts:

3 left

💡 Hint

Common Mistakes

Using 'mvn' instead of 'java' for JDK verification.

Incorrect JDK tool names.

The JDK tool is JDK11. The command to check the version is java -version. mvn is unrelated here.