[JavaJaxRS] [CXF] Add Support for Jackson3

[wing328]

to fix #23616

based on #23719

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---

Summary by cubic

Add Jackson 3 support to the JAX-RS CXF client generator via the new useJackson3 option. When enabled, clients use tools.jackson, CXF 4.2.0, updated provider imports, and require Java 11+; Jackson 2 remains the default.

• New Features

  • Added useJackson3 to JavaCXFClientCodegen and exposed it as a CLI option.
  • Introduced jacksonPackage to switch between tools.jackson (Jackson 3) and com.fasterxml.jackson (Jackson 2).
  • Updated pom.mustache to use the correct Jackson group/provider, set CXF 4.2.0 and Jackson JAX-RS 3.1.2 for Jackson 3, skip jackson-datatype-jsr310, and remove explicit <java.version> properties.
  • Updated api_test.mustache to import the JSON provider from the selected package and Jakarta variant.
  • Documented useJackson3 and updated the Petstore jaxrs-cxf-client-jackson sample to use useJackson3 and useJakartaEe; removed explicit Java version properties in related samples.

• Migration

  • Only if you enable useJackson3:
    • Requires Java 11+ and CXF 4.2.0.
    • Uses tools.jackson coordinates and the Jakarta RS JSON provider.
    • Do not include jackson-datatype-jsr310.
    • With useJakartaEe, generated sources use jakarta.ws.rs imports.

^{Written for commit 9a3f10b. Summary will update on new commits.}

[cubic-dev-ai]

2 issues found across 14 files

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="samples/client/petstore/jaxrs-cxf-client-jackson/pom.xml">

<violation number="1" location="samples/client/petstore/jaxrs-cxf-client-jackson/pom.xml:189">
P1: CXF 4.2.0 requires JDK 17+, but this sample pins `java.version` to 11, which can break compilation/runtime compatibility.</violation>
</file>

<file name="modules/openapi-generator/src/main/resources/JavaJaxRS/cxf/pom.mustache">

<violation number="1" location="modules/openapi-generator/src/main/resources/JavaJaxRS/cxf/pom.mustache:250">
P1: `useJackson3` sets `java.version` to 11, but this branch also upgrades to CXF 4.2.0, which requires a newer JDK baseline. This can generate projects that do not build with the emitted Java version.</violation>
</file>

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

[wing328]

fyi @bbdouglas (2017/07) @sreeshas (2017/08) @jfiala (2017/08) @lukoyanov (2017/09) @cbornet (2017/09) @jeff9finger (2018/01) @karismann (2019/03) @Zomzog (2019/04) @lwlee2608 (2019/10) @martin-mfg (2023/08)