Use Spring Boot 3.x by default (useSpringBoot3=true)

[wing328]

cc @cachescrubber (2022/02) @welshm (2022/02) @MelleD (2022/02) @atextor (2022/02) @manedev79 (2022/02) @javisst (2022/02) @borsch (2022/02) @banlevente (2022/02) @Zomzog (2022/09) @martin-mfg (2023/08)

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Summary by cubic

Make Spring Boot 3 the default for generated Spring projects (useSpringBoot3=true in SpringCodegen). Update docs and samples for Jakarta and Java 17; add CI to keep Boot 2 coverage; useSpringBoot4 now auto-disables Boot 3.

• Dependencies

  • Upgrade samples to Spring Boot 3.3.13, Spring Cloud 2023.0.0, and Java 17; main samples workflow runs on JDK 17; add a JDK 11 workflow for springboot-implicitHeaders and springboot-implicitHeaders-annotationLibrary with useSpringBoot3=false; set useSpringBoot3=false in java-camel-petstore-new.yaml to preserve Boot 2 coverage.
  • Switch to springdoc-openapi-starter-webmvc-ui (2.2.0); bump org.openapitools:jackson-databind-nullable to 0.2.9; manage spring-security-oauth2-client via the BOM.
  • Default useSpringBoot3 to true in code and docs; move generated imports to jakarta.*; use org.springdoc.core.annotations.ParameterObject.

• Migration

  • To keep Spring Boot 2 behavior, set useSpringBoot3=false.
  • For Spring Boot 4, set useSpringBoot4=true (this automatically disables useSpringBoot3).
  • If adopting the default, ensure Java 17+ and Boot 3 dependencies.

^{Written for commit f5b29b9. Summary will update on new commits.}

[cubic-dev-ai]

1 issue found across 1565 files

Note: This PR contains a large number of files. cubic only reviews up to 75 files per PR, so some files may not have been reviewed.

Prompt for AI agents (unresolved issues)

Check if these issues are valid — if so, understand the root cause of each and fix them. If appropriate, use sub-agents to investigate and fix each issue separately.


<file name="modules/openapi-generator/src/main/java/org/openapitools/codegen/languages/SpringCodegen.java">

<violation number="1" location="modules/openapi-generator/src/main/java/org/openapitools/codegen/languages/SpringCodegen.java:524">
P3: The new Boot 4 auto-disable logic makes the following `useSpringBoot3 && useSpringBoot4` check unreachable, leaving dead conditional code.</violation>
</file>

_{Reply with feedback, questions, or to request a fix. Tag @cubic-dev-ai to re-run a review.}