OpenAPITools/openapi-generator

[REQ] Generate JsonB model (JSR 367 Specification)

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#4,104 opened on Oct 9, 2019

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Client: JavaEnhancement: FeatureHacktoberfestServer: Javahelp wanted

Description

Is your feature request related to a problem? Please describe.

JsonB (JSR 367 Specification) is the new standard for JSON serialization : https://javaee.github.io/jsonb-spec/

It would be nice to add a serializationLibrary: JsonB

Describe the solution you'd like

There are small differences with Jackson generation

Jackson import : import com.fasterxml.jackson.annotation.JsonProperty; Will be replace by : import javax.json.bind.annotation.JsonbProperty;

Annotations @JsonProperty are replaced by @JsonbProperty

Describe alternatives you've considered

Additional context

Contributor guide

Tech stack
java
Domain
toolingbackend
Issue type
feature
DifficultyEstimated implementation difficulty for a new contributor, from 1 for very small changes to 5 for expert-level work.
3
Estimated timeA rough time range for an experienced contributor to investigate, implement, test, and prepare a pull request.
1-3 hours
Activity statusHow available the issue appears right now: fresh, active, stale, blocked, or waiting on maintainer input.
stale
ClarityHow clearly the issue explains the expected change, acceptance criteria, and next step.
mostly clear
Prerequisites
Java programmingFamiliarity with Jackson annotationsUnderstanding of OpenAPI Generator
Newbie friendlinessA 1-100 score estimating how approachable this issue is for first-time contributors.
60
Research direction
Look at existing Jackson serialization support in the OpenAPI Generator codebase, specifically in AbstractJavaCodegen.java and related template files (e.g., pojo.mustache). Replace Jackson annotations like @JsonProperty with JsonB equivalents (@JsonbProperty). Ensure import statements are updated from com.fasterxml.jackson.annotation to javax.json.bind.annotation. Test the changes with a sample OpenAPI spec that includes JSON serialization.