javax-to-jakarta-migration
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.
Best for Jakarta EE migration projec…Works with GitHub
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- author
@github- language
- Python
★32kstars
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Apr 29, 2026
✦overview.md
Key Features
- ·Automated javax to jakarta import mapping
- ·Explicit do-not-migrate package list
- ·pom.xml dependency coordinate migration
- ·Clear step-by-step procedure
- ·Covers all Jakarta EE 10 namespaces
Use Cases
- →Upgrading a Tomcat 10 project to Tomcat 11
- →Migrating a legacy Java EE application to Jakarta EE 10
- →Fixing a CI build failure due to javax import
- →Preparing a library for jakarta namespace compatibility
Best for
- ✓Jakarta EE migration projects
- ✓Tomcat 11 upgrades
- ✓Java EE → Jakarta EE refactoring
Not ideal for
- !Projects still on Java EE 8
- !JDK-only packages (e.g. javax.sql)
FAQs
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 JDKjavax.naming.*— part of JDK (JNDI)javax.crypto.*— part of JDKjavax.net.*— part of JDKjavax.security.auth.*— part of JDKjavax.swing.*,javax.xml.parsers.*— JDK packages
Step 2 — Update pom.xml
Replace dependency coordinates:
| Old | New |
|---|
$install
1-click copynpx skills add github/awesome-copilot --skill javax-to-jakarta-migrationSafety assessment
★
Clarity score
How clear and easy to understand the SKILL.md instructions are, rated from 1 to 5.
5/ 5
excellentVery clear and well structured, with almost no room for misunderstanding.
◎
Actionability score
How directly an agent can act on the SKILL.md instructions, rated from 1 to 5.
5/ 5
very highHighly actionable with clear, concrete steps that an agent can follow directly.