feat: add bump-java-version skill (portable Java LTS bump)#311
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vasiliy-mikhailov wants to merge 1 commit into
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feat: add bump-java-version skill (portable Java LTS bump)#311vasiliy-mikhailov wants to merge 1 commit into
vasiliy-mikhailov wants to merge 1 commit into
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Migrate a Maven project one Java LTS step (8->11, 11->17, 17->21, 21->25) so it compiles under the new JDK and previously-passing tests still pass; standard tools only (JDKs, Maven, OpenRewrite from Maven Central), no scripts.
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bump-java-versionskillUpgrades a Maven project one Java LTS step (8→11, 11→17, 17→21, 21→25) so it compiles under the new JDK and every previously-passing test still passes — using only standard tools (JDKs, Maven, and OpenRewrite recipes from Maven Central). No bundled scripts: it's a hand manual the agent reads and follows (baseline → Lombok-safe → OpenRewrite migration → deterministic pom edits → compile + test + conserve → Spring Boot 2→3 /
javax→jakartawhen forced → troubleshooting table → honest bail).PASS =
mvn compilesucceeds under the target JDK and no previously-passing test is lost.The skill was evolved and hardened across a panel of three off-the-shelf agents — opencode, kilocode, and OpenHands — all driving the same model on the identical
SKILL.md, the agent being the only variable. So it's portable by construction, and OpenHands was one of the three validation agents.Adds
skills/bump-java-version/(SKILL.md + README) per the one-directory-per-skill layout. Standalone repo & cross-agent packaging: https://github.com/vasiliy-mikhailov/bump-java-version-skill