Upgrade Spring Boot to 3.4/3.5 and Jackson to 2.18.x

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Assessment

Difficulty
4/5
Estimated time
3-5 days
Newbie friendliness
52/100
Issue type
Refactor
Clarity
Mostly clear
Activity status
Quiet
Tech stack
java, spring-boot
Domain
api, build-system

Research direction

Start with conductor-client-spring/build.gradle and versions.gradle to confirm the current Spring Boot, Jackson, and Afterburner declarations. Check the Spring Boot 3.4.x or 3.5.x compatibility notes and replace the deprecated Jackson module as specified, then build all modules and run the test suite. Done means the supported versions are applied, compatibility breaks are resolved, and all builds and tests pass.

Written by the indexing model from the issue text.

Description

enhancement

Summary

The conductor-client-spring module currently pins Spring Boot to 3.3.0. Spring Boot 3.3.x reached end-of-OSS-support in November 2024 and has known CVEs. Jackson is pinned to 2.17.1 across the project.

This issue tracks upgrading both to currently-supported versions.

Scope

  • Bump spring-boot-starter in conductor-client-spring/build.gradle from 3.3.0 → 3.4.x or 3.5.x (latest supported)
  • Bump jackson version in versions.gradle from 2.17.1 → 2.18.x (latest stable)
  • Verify all modules build and tests pass after the upgrade
  • Check for any API compatibility breaks between Spring Boot 3.3 → 3.4/3.5 affecting the SDK

Context

  • Spring Boot 3.3.x is EOL; open CVEs #84 and #85 are filed against it
  • PR #86 bumps Spring Boot only to 3.3.11 (latest 3.3.x patch) — that is a stopgap, not the long-term fix
  • Jackson 2.18.x is the current stable 2.x line; upgrading Spring Boot will also pull in a compatible Jackson via the BOM
  • jackson-module-afterburner (currently used) was deprecated in Jackson 2.17 and removed in 2.18 — migration to jackson-module-blackbird will be required as part of this upgrade

Migration note

jackson-module-afterburner → jackson-module-blackbird swap required in build.gradle:

-implementation "com.fasterxml.jackson.module:jackson-module-afterburner:${versions.jackson}"
+implementation "com.fasterxml.jackson.module:jackson-module-blackbird:${versions.jackson}"
Dominant language
Java
Stars
12
Forks
10
Avg merge
2d 8h
Merged PRs (30d)
4

Contributor guide

Open the contributing guide

First steps

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  2. Comment on the issue to say you are picking it up — it saves two people doing the same work.
  3. Fork the repository and make your change on a branch.
  4. Open a pull request that references the issue number.

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