This guide shows you how to create a workflow that performs continuous integration (CI) for your Java project using the Ant build system. The workflow you create will allow you to see when commits to a pull request cause build or test failures against your default branch; this approach can help ensure that your code is always healthy. You can extend your CI workflow to upload artifacts from a workflow run.
GitHub-hosted runners have a tools cache with pre-installed software, which includes Java Development Kits (JDKs) and Ant. For a list of software and the pre-installed versions for JDK and Ant, see "Using GitHub-hosted runners".
You should be familiar with YAML and the syntax for GitHub Actions. For more information, see:
We recommend that you have a basic understanding of Java and the Ant framework. For more information, see the Apache Ant Manual.
To get started quickly, add a starter workflow to the
.github/workflows directory of your repository.
GitHub provides a starter workflow for Ant that should work for most Java with Ant projects. The subsequent sections of this guide give examples of how you can customize this starter workflow.
On GitHub.com, navigate to the main page of the repository.
Under your repository name, click Actions.
If you already have a workflow in your repository, click New workflow.
The "Choose a workflow" page shows a selection of recommended starter workflows. Search for "Java with Ant".
On the "Java with Ant" workflow, click Configure.
Edit the workflow as required. For example, change the Java version.
Click Commit changes.
ant.ymlworkflow file is added to the
.github/workflowsdirectory of your repository.
The starter workflow sets up the
PATH to contain OpenJDK 8 for the x64 platform. If you want to use a different version of Java, or target a different architecture (
x86), you can use the
setup-java action to choose a different Java runtime environment.
For example, to use version 11 of the JDK provided by Adoptium for the x64 platform, you can use the
setup-java action and configure the
architecture parameters to
steps: - uses: actions/checkout@v4 - name: Set up JDK 11 for x64 uses: actions/setup-java@v3 with: java-version: '11' distribution: 'temurin' architecture: x64
For more information, see the
You can use the same commands that you use locally to build and test your code.
The starter workflow will run the default target specified in your build.xml file. Your default target will commonly be set to build classes, run tests and package classes into their distributable format, for example, a JAR file.
If you use different commands to build your project, or you want to run a different target, you can specify those. For example, you may want to run the
jar target that's configured in your
steps: - uses: actions/checkout@v4 - uses: actions/setup-java@v3 with: java-version: '17' distribution: 'temurin' - name: Run the Ant jar target run: ant -noinput -buildfile build-ci.xml jar
After your build has succeeded and your tests have passed, you may want to upload the resulting Java packages as a build artifact. This will store the built packages as part of the workflow run, and allow you to download them. Artifacts can help you test and debug pull requests in your local environment before they're merged. For more information, see "Storing workflow data as artifacts."
Ant will usually create output files like JARs, EARs, or WARs in the
build/jar directory. You can upload the contents of that directory using the
steps: - uses: actions/checkout@v4 - uses: actions/setup-java@v3 with: java-version: '17' distribution: 'temurin' - run: ant -noinput -buildfile build.xml - uses: actions/upload-artifact@v3 with: name: Package path: build/jar