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.
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SKILL.md
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 |
|---|---|
javax.servlet:javax.servlet-api | jakarta.servlet:jakarta.servlet-api:6.0.0 |
javax.persistence:javax.persistence-api | jakarta.persistence:jakarta.persistence-api:3.1.0 |
javax.validation:validation-api | jakarta.validation:jakarta.validation-api:3.0.2 |
javax.annotation:javax.annotation-api | jakarta.annotation:jakarta.annotation-api:2.1.1 |
Step 3 — Update web.xml (if present)
<!-- 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
- Run
mvn clean compileorgradlew build— fix any compilation errors - Run
mvn testorgradlew test— ensure all tests pass - 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.
Files
1- SKILL.md
f93b85539e2.5 KB
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