Claude
b4b43b94bf
Co-Authored-By: Claude Sonnet 5 <[email protected]> Claude-Session: https://claude.ai/code/session_01Gth99spB1CzQmBFofXmU4Z
openrewrite
Companion module for the ankurm.com post Automating javax → jakarta and Boot 3 → 4 Upgrades with OpenRewrite.
legacy-app/ is a small Spring Boot 2.7.18 application (JPA, validation, security, a servlet filter, RestTemplate, a JUnit 4 test, a spring.factories auto-configuration). scripts/run-all.sh copies it to a scratch directory outside this checkout, runs two OpenRewrite recipes in sequence, builds and tests after each, and records everything under output/.
| Tool | Version |
|---|---|
| rewrite-maven-plugin | 6.46.1 |
| rewrite-spring | 6.37.1 |
| rewrite-migrate-java | 3.42.1 |
| JDK / Maven | 17 / 3.9 |
export JAVA_HOME=/path/to/jdk17
./scripts/run-all.sh
| Output | Shows |
|---|---|
00-gotcha-gitignore.txt |
OpenRewrite silently skips sources that git ignores |
01-baseline.txt |
Legacy app builds and passes on Boot 2.7.18 |
02-step1-diff.txt / 03-step1-build.txt |
UpgradeSpringBoot_3_5: diff and build |
04-step2-diff.txt / 05-step2-build.txt |
UpgradeSpringBoot_4_0: diff and build |
06-what-it-left-behind.txt |
What the recipes did not change |
07-step3-boot-4.1.1.txt |
Hand bump from 4.0.x to 4.1.1, build and test |
08-ci-gate.txt |
rewrite:dryRun exit codes, including a property-name trap |