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Java Upgrade Copilot Instructions

Pointer to the java-upgrade skill when changing the Java version in Maven or Gradle build files

GitHub CopilotSpring Boot (Java)Community (MIT)

Community rule file, not a RuleStack original. From awesome-copilot (github/awesome-copilot), file instructions/java-upgrade.instructions.md. Contributed by awesome-copilot contributors. Copyright GitHub, Inc. Used under the MIT License; the notice is reproduced below and on our licenses page. Shown as written; we filtered it but did not write or test it. Imported 2026-10-17 from commit cb64ad1.

MIT License notice

MIT License

Copyright GitHub, Inc.

Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in all
copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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SOFTWARE.

How to use

Save this as .github/instructions/java-upgrade.instructions.md in your project, commit it, and GitHub Copilot will apply it to matching files. Review it first: community files can be opinionated or out of date.

Note: Review and test before use. Provided as is, without warranty. See Terms.

.github/instructions/java-upgrade.instructions.mdDownload

---
description: 'Pointer to the java-upgrade skill when changing the Java version in Maven or Gradle build files'
applyTo: '**/pom.xml, **/build.gradle, **/build.gradle.kts'
---

# Java Version Upgrades

When the task changes the Java version of this project (compiler release, toolchain, `java.version`), use the `java-upgrade` skill. It detects the current version and loads only the matching guide for Java 11 → 17, 17 → 21 or 21 → 25.

If the skill is not installed, install it with `gh skills install github/awesome-copilot java-upgrade` or copy `skills/java-upgrade/` from this repository.

- Upgrade one LTS version at a time and run the full test suite after each step.
- Check the minimum Java version supported by the project's frameworks and dependencies before raising the target.

Java Upgrade Copilot Instructions

How to use

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