Individual skill

javax-to-jakarta-migration

Migrate Java code from javax.* to jakarta.* namespace. Use only when the user explicitly asks for a javax to jakarta namespace or framework migration (for example to Tomcat 10+/11 or Jakarta EE), or when java-upgrade or spring-boot-4-migration delegates it. Finding javax imports alone does not authorize a migration.

skills/javax-to-jakarta-migration/SKILL.md

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# javax → jakarta Migration Skill

## When to Use
- The user explicitly asks to migrate to the jakarta namespace, Tomcat 10+/11 or Jakarta EE
- `java-upgrade` or `spring-boot-4-migration` delegates the namespace migration

Detecting `javax.*` imports alone does not authorize this migration; report them instead.

In Spring Boot projects, the Boot BOM manages Jakarta versions: do not pin the versions below, and let the Boot version decide the Jakarta EE level (Boot 4 = Jakarta EE 11, Servlet 6.1). The examples below target Jakarta EE 10 (Servlet 6.0, Tomcat 10.1+) in non-Boot projects.

## Procedure

### Step 0 — Baseline
Run `./mvnw verify` or `./gradlew build` first and record the result; do not migrate on a red baseline. Make the change in a dedicated commit/step.