java-lts-migration
Upgrade a Java codebase (Maven, Gradle or Ant) between LTS versions 8, 11, 17, 21 and 25, one hop at a time, with minimal behavior change and test-parity…
Skill by RyanLisse
Install
Works with Claude Code, Claude apps, Codex, Cursor, Gemini CLI, GitHub Copilot, VS Code, OpenCode, Goose, Windsurf. Read the repository before you give any tool access to your data.
npx agentmarket install skill/ryanlisse-java-lts-migration
Asks which of your tools to add it to (Claude Code, Codex, Cursor, VS Code, Windsurf, Gemini CLI, Claude Desktop) and shows the change first. See https://agentmart.dev/cli.
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About
Use cases: testing
Reviews
Write a reviewNo reviews yet. Installed it? Reviews come from verified installers only. How reviews work
Permissions
What this skill can do and what it asks for, from its SKILL.md. Checked Oct 25, 2026.
- Tools
- No tools found
- Secrets
- None asked for
- Install scripts
- None found
- Runs as
- Shell scripts
Network hosts it talks to 1
codeload.github.com· found in install command
Files it touches
~/.claude/skills/java-lts-migration
What's inside
- Skill name
java-lts-migration- Description
- Upgrade a Java codebase (Maven, Gradle or Ant) between LTS versions 8, 11, 17, 21 and 25, one hop at a time, with minimal behavior change and test-parity evidence. Use for 'upgrade to Java 17/21/25', 'bump the JDK', 'migrate from Java 8', or errors like 'Unsupported class file major version' and 'InaccessibleObjectException'. Not for adopting new language features or Spring Boot major upgrades.
- License
- NOASSERTION
- Instructions
- 113 lines in SKILL.md · view on GitHub
Before installing
- Ships executable scripts
Files (14)
- SKILL.md
- MIGRATION_PLAN.md · assets/
- evals.json · evals/
- hop-11-to-17.md · references/
- hop-17-to-21.md · references/
- hop-21-to-25.md · references/
- hop-8-to-11.md · references/
- library-matrix.md · references/
- openrewrite.md · references/
- troubleshooting.md · references/
- check-bytecode.sh · scripts/
- intake.sh · scripts/
- scan-flags.sh · scripts/
- test-count.sh · scripts/
The license isn't open source, so the instructions aren't shown here. Read SKILL.md on GitHub
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Signals
- Stars
- 0
- Forks
- 0
- Open issues
- 0
- Last commit (this folder)
- Sep 30, 2026 (28 days ago)
From GitHub (fetched Oct 24, 2026).
Details
- License
- NOASSERTION
- First seen
- Oct 24, 2026
- Last checked
- Oct 24, 2026
- Source
- GitHubgithub-graphql
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Cite this page
java-lts-migration skill. Agent Mart. https://agentmart.dev/skills/ryanlisse-java-lts-migration (last updated 2026-10-24)