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Official agent skill

Javax To Jakarta Migration

by github in github/awesome-copilot

Migrate Java code from javax. An agent skill from github/awesome-copilot.

OfficialMITAuto-check passed

Install Javax To Jakarta Migration

skills CLI
$ npx skills add github/awesome-copilot --skill javax-to-jakarta-migration -a claude-code

Project install by default; add -g for ~/.claude/skills/.

GitHub CLI
$ gh skill install github/awesome-copilot javax-to-jakarta-migration --agent claude-code

Project scope by default; add --scope user for a personal install. Needs GitHub CLI 2.90.0 or later (public preview).

Manual copy
$ git clone --depth 1 https://github.com/github/awesome-copilot.git skills-src && mkdir -p .claude/skills && cp -r skills-src/skills/javax-to-jakarta-migration .claude/skills/javax-to-jakarta-migration && rm -rf skills-src

Use ~/.claude/skills/ instead of .claude/skills for a personal install. The folder must contain SKILL.md.

Claude Code skills documentation · loads skills from .claude/skills/

Facts

Skill name
javax-to-jakarta-migration
GitHub stars
40k
Used in
1 other repo
Token cost
~626 tokens
SKILL.md length
168 words
Files
1
Skills in repo
417
Repo updated
First seen
Licence
MIT

At a glance

Migrate Java code from javax. An agent skill from github/awesome-copilot.

  • Works in 5 steps: Scan for javax Usage → Update pom.xml → Update web.xml (if present) → …
  • Upgrading to Tomcat 11
  • SKILL.md covers When to Use and Procedure
  • Calls mvn; reaches xmlns.jcp.org and jakarta.ee

What it does

Javax To Jakarta Migration is an agent skill from github/awesome-copilot, published by the product's own GitHub organization. Migrate Java code from javax. to jakarta. namespace. Use when upgrading to Tomcat 11, Jakarta EE 10, or when javax imports are detected in the codebase.

Its SKILL.md is about 630 tokens, which your agent loads only when the skill is triggered. It is a single SKILL.md file with no bundled scripts.

It works with Java. The repository describes itself as: Community-contributed instructions, agents, skills, and configurations to help you make the most of GitHub Copilot. The licence is MIT.

When your agent uses it

  • Upgrading to Tomcat 11
  • Javax imports are detected in the codebase

Example prompts

  • “/javax-to-jakarta-migration”

Workflow steps

5 steps, taken from the step headings in SKILL.md.

  1. Scan for javax Usage
  2. Update pom.xml
  3. Update web.xml (if present)
  4. Update Java Source Files
  5. Verify

What it can do on your machine

Read from SKILL.md and the folder at commit 7cce7cf. It shows what the files ask for, not the result of running them.

  • Tool permissions

    Pre-approves nothing: there is no allowed-tools line, so your agent's usual permission prompts apply.

    From allowed-tools in the SKILL.md frontmatter.

  • Runs code

    Shell commands in SKILL.md call:

    • mvn

    From the folder's file list and the shell code blocks in SKILL.md.

  • Network

    Hosts in commands or code, which the agent is likely to contact:

    • xmlns.jcp.org
    • jakarta.ee

    From URLs in SKILL.md, links to its own repository left out.

  • Credentials

    Names no API keys, tokens, secrets or passwords.

    From names ending in _API_KEY, _TOKEN, _SECRET, _KEY or _PASSWORD in SKILL.md.

Context cost

Javax To Jakarta Migration loads about 626 tokens when it runs. Until then it costs about 45 tokens; SKILL.md has 168 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it
~45
When it runs · the whole SKILL.md, loaded when a task matches
~626

Estimates: characters ÷ 4, the usual rule of thumb; real counts depend on the model's tokenizer. Scripts and assets cost tokens only if the agent reads them.

Safety

Auto-check passed

The automated check found no risky patterns in SKILL.md.

Automated static check — not a guarantee. Review scripts before installing. It scans the text of SKILL.md for risky patterns (piping downloads into a shell, reading credential files, hidden Unicode, destructive commands); files beside SKILL.md are not scanned.

SKILL.md

The full file from github/awesome-copilot at commit 7cce7cf, republished under its MIT licence (© github). 168 words, ~626 tokens.

Download SKILL.mdSave it as .claude/skills/javax-to-jakarta-migration/SKILL.md (or your agent's skills folder).
name
javax-to-jakarta-migration
description
Migrate Java code from javax.* to jakarta.* namespace. Use when upgrading to Tomcat 11, Jakarta EE 10, or when javax imports are detected in the codebase.
argument-hint
File, package, or module to migrate

javax → jakarta Migration Skill

When to Use

  • Upgrading to Tomcat 11 / Jakarta EE 10+
  • Code review detects javax.* imports
  • Migrating an existing project to the jakarta namespace

Procedure

Step 1 — Scan for javax Usage

Search the codebase for all javax.* imports that need migration:

javax.servlet.*      → jakarta.servlet.*
javax.persistence.*  → jakarta.persistence.*
javax.validation.*   → jakarta.validation.*
javax.annotation.*   → jakarta.annotation.*
javax.inject.*       → jakarta.inject.*
javax.enterprise.*   → jakarta.enterprise.*
javax.faces.*        → jakarta.faces.*
javax.ws.rs.*        → jakarta.ws.rs.*
javax.el.*           → jakarta.el.*
javax.json.*         → jakarta.json.*
javax.mail.*         → jakarta.mail.*
javax.websocket.*    → jakarta.websocket.*

Do NOT migrate these (they remain in javax.*):

  • javax.sql.* — part of JDK
  • javax.naming.* — part of JDK (JNDI)
  • javax.crypto.* — part of JDK
  • javax.net.* — part of JDK
  • javax.security.auth.* — part of JDK
  • javax.swing.*, javax.xml.parsers.* — JDK packages
Step 2 — Update pom.xml

Replace dependency coordinates:

OldNew
javax.servlet:javax.servlet-apijakarta.servlet:jakarta.servlet-api:6.0.0
javax.persistence:javax.persistence-apijakarta.persistence:jakarta.persistence-api:3.1.0
javax.validation:validation-apijakarta.validation:jakarta.validation-api:3.0.2
javax.annotation:javax.annotation-apijakarta.annotation:jakarta.annotation-api:2.1.1
Step 3 — Update web.xml (if present)
xml
<!-- Old namespace -->
<web-app xmlns="http://xmlns.jcp.org/xml/ns/javaee" version="4.0">

<!-- New namespace -->
<web-app xmlns="https://jakarta.ee/xml/ns/jakartaee" version="6.0">
Step 4 — Update Java Source Files

Replace all javax. imports with jakarta. equivalents in .java files.

Step 5 — Verify
  1. Run mvn clean compile or gradlew build — fix any compilation errors
  2. Run mvn test or gradlew test — ensure all tests pass
  3. Search for any remaining javax.* imports (excluding JDK packages)
Output

Provide a migration summary listing all files changed, imports replaced, and any manual steps required.

© github, MIT. Rendered from Markdown: HTML in the file is shown as text, images as links, and headings moved down two levels. Raw file

Files

Just SKILL.md in skills/javax-to-jakarta-migration of github/awesome-copilot.

Open the folder on GitHubat commit 7cce7cf

Used in 1 other repository

We found 1 copy of this SKILL.md (exact, near-identical or edited) in other folders, from 1 other GitHub owner. This page covers the copy in github/awesome-copilot, which our catalogue first saw on October 7, 2026.

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Works with

Questions about Javax To Jakarta Migration

What does Javax To Jakarta Migration do?

Migrate Java code from javax. An agent skill from github/awesome-copilot. Javax To Jakarta Migration is an agent skill from github/awesome-copilot, published by the product's own GitHub organization. Migrate Java code from javax.

When should I use Javax To Jakarta Migration?

Javax To Jakarta Migration fits situations like: upgrading to Tomcat 11; javax imports are detected in the codebase.

How do I install Javax To Jakarta Migration in Claude Code?

Run `npx skills add github/awesome-copilot --skill javax-to-jakarta-migration -a claude-code`. Or copy the skill folder (skills/javax-to-jakarta-migration in github/awesome-copilot) into .claude/skills/javax-to-jakarta-migration in your project. Claude Code loads it when a task matches its description.

How do I install Javax To Jakarta Migration in Codex?

Run `npx skills add github/awesome-copilot --skill javax-to-jakarta-migration -a codex`. Or copy the skill folder (skills/javax-to-jakarta-migration in github/awesome-copilot) into .agents/skills/javax-to-jakarta-migration in your project. Codex loads it when a task matches its description.

Can I use Javax To Jakarta Migration in Cursor, Gemini CLI or GitHub Copilot?

Cursor, Gemini CLI, GitHub Copilot and OpenCode also load SKILL.md folders. With the skills CLI, run `npx skills add github/awesome-copilot --skill javax-to-jakarta-migration -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/javax-to-jakarta-migration, .gemini/skills/javax-to-jakarta-migration, .github/skills/javax-to-jakarta-migration and .opencode/skills/javax-to-jakarta-migration in your project.

What does Javax To Jakarta Migration need to run?

Going by SKILL.md and its folder, Javax To Jakarta Migration needs the command-line tools its instructions call (mvn).

Does Javax To Jakarta Migration access the network?

SKILL.md names 2 domains. In commands or code: xmlns.jcp.org and jakarta.ee; the agent is likely to contact these when it follows the instructions. This is read from the text; nothing was executed.

Is Javax To Jakarta Migration safe to install?

Our automated static check of SKILL.md found no risky patterns, such as piping downloads into a shell, reading credential files or hidden Unicode. It is not a guarantee. Review the folder before installing.

What licence does Javax To Jakarta Migration use?

Javax To Jakarta Migration is published under the MIT licence (the repository's licence). It allows redistribution, so the full SKILL.md is shown on this page.

How many tokens does Javax To Jakarta Migration use?

About 626 tokens (SKILL.md is roughly 2.5k characters). Agents keep only the skill's name and description in context until a task matches; then they load SKILL.md in full.

What are the alternatives to Javax To Jakarta Migration?

Skills that share tags, products or a category with Javax To Jakarta Migration: Brainstorming (xpinjection/test-driven-spring-boot, 112 stars), Android API Diff (gkd-kit/gkd, 43k stars), Video Cover Image (itwanger/toBeBetterJavaer, 18k stars) and Lancedb Update Lance Dependency (lancedb/lancedb, 12k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.

Who maintains Javax To Jakarta Migration?

github (a GitHub organization, an official publisher) maintains it in github/awesome-copilot, which has 39,792 GitHub stars. The repository holds 417 skills in this directory. The repository was last updated on October 8, 2026.

Source: github/awesome-copilot on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.