setup-java/README.md

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# setup-java
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This action sets up a java environment for use in actions by:
- optionally downloading and caching a version of java by version and adding to PATH. Downloads from [Azul's Zulu distribution](http://static.azul.com/zulu/bin/).
- registering problem matchers for error output
# Usage
See [action.yml](action.yml)
Basic:
```yaml
actions:
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- uses: actions/checkout@latest
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- uses: actions/setup-java@latest
with:
version: 9.0.4 // The JDK version to make available on the path. Takes a whole or semver Jdk version, or 1.x syntax (e.g. 1.8 => Jdk 8.x)
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architecture: x64 // (x64 or x86) - defaults to x64
- run: java -cp java HelloWorldApp
```
From local file:
```yaml
actions:
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- uses: actions/checkout@latest
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- uses: actions/setup-java@latest
with:
version: 4.0.0
architecture: x64
jdkFile: <path to jdkFile> // Optional - jdkFile to install java from. Useful for versions not supported by Azul
- run: java -cp java HelloWorldApp
```
Matrix Testing:
```yaml
jobs:
build:
strategy:
matrix:
java: [ 1.6, 9.0.x, 12.0.2 ]
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name: Java ${{ matrix.java }} sample
actions:
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- uses: actions/checkout@latest
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- name: Setup java
uses: actions/setup-java@latest
with:
version: ${{ matrix.java }}
architecture: x64
- run: java -cp java HelloWorldApp
```
# License
The scripts and documentation in this project are released under the [MIT License](LICENSE)
# Contributions
Contributions are welcome! See [Contributor's Guide](docs/contributors.md)