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Upgrading a Java project to a newer version v1.0.0

Use this resource to migrate a Java project to a newer LTS version

New

  • 555 downloads
  • 149 likes
  • 191 saves

Free

Install with the CLI

In a terminal, from the folder you want:

npx --yes palatekit@latest install java-version-upgrade-guide-2

With no option, the skill goes to ~/.agents/skills/; add --agent claude-code (or codex, cursor…) to target an agent.

First time: connect the CLI with

npx --yes palatekit@latest login

The agent assesses the current version, updates the Maven configuration, fixes compilation errors caused by removed APIs and reruns the tests. You get a step-by-step plan, moving from one LTS version to the next.

Mostly picked by

Updated November 2, 2026

Card for the “Upgrading a Java project to a newer version” skill

Details

Works in
Install guides
Generates with
Your agent's model
Licence
MIT

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What you get

  • SKILL.md: migration steps, starting state, Maven configuration, error fixes and tests
  • README.md: migration paths and breaking changes per version

Good fit for

  • Your project still runs on Java 8 or 11 and must move up
  • A Spring Boot upgrade requires a newer Java version

Not for

    Tags

    • java
    • migration
    • lts
    • maven

    About

    You say

    “Migrate this project from Java 11 to Java 21 and fix the compilation errors.”

    Card for the “Upgrading a Java project to a newer version” skill

    Skill published by decebals under the MIT license, delivered in its original version.

    Show more

    How to use it

    1. Install the skill in your agent's skills folder
    2. Ask your agent to migrate a Java project to a newer LTS version
    3. Review and adjust the result

    Content preview

    Files

    • LICENSE1 KB
    • NOTICE-PALATEKIT.md0.5 KB
    • README.md2.1 KB
    • SKILL.md15.3 KB

    Origin and licence

    Listed unmodified

    Author
    decebals
    Source
    github.com/decebals/claude-code-java/tree/0d98fe9bd62923e819568ee1e041a1bf320f74d4/skills/java-migration
    Licence
    MIT

    Notice

    « java-migration » (decebals, MIT) livré dans sa version d'origine : fiche en français et en anglais par PalateKit.

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