Spring Boot Starter is incompatible with Spring Boot v4

[donalmurtagh]

Description

In Spring Boot v4, org.springframework.boot.autoconfigure.jackson.JacksonAutoConfiguration has moved to org.springframework.boot.jackson.autoconfigure.JacksonAutoConfiguration.

The logbook starter uses the old fully-qualified name in LogbookAutoConfiguration.java which causes a ClassNotFoundException at startup in a Spring Boot v4 app.

Expected Behavior

A Spring Boot v4 app should start without errors if the latest Logbook starter is added as a dependency

Actual Behavior

A Spring Boot v4 app throws a ClassNotFoundException and fails to start when the latest Logbook starter is added as a dependency

Possible Fix

Migrate JacksonAutoConfiguration and any other types that have changed in Spring Boot v4

Steps to Reproduce

1. Download this app. Be sure to use the logbook-spring-v4 branch
2. Run ./gradlew bootRun
3. A ClassNotFoundException prevents the app from starting
4. Remove the logbook dependency from build.gradle
5. Run ./gradlew bootRun --refresh-dependencies
6. The app should now start without any errors

Your Environment

• Version used: org.zalando:logbook-spring-boot-starter:3.12.3 in Spring Boot 4.0.0-M3

[RANJEETJ06]

can i work upon this #2177
plz assign it to me, i will try

[donalmurtagh]

can i work upon this #2177 plz assign it to me, i will try

@RANJEETJ06 I don't think you need to ask permission. Just clone the repo, make the changes, and submit a PR.

I would start with ObjectMapper. This along with many other Jackson types has been moved to a different package in Jackson v3. Spring Boot v4 upgrades its Jackson dependency from v2 to v3. See the Spring Boot v4 migration guide for more details.