OpenAPITools / OpenAPITools/openapi-generator

[BUG] Generated Model List getting creating with a new instance of an ArrayList and not null from 7.5.0 version

Open
#20,574 1 comment 0 reactions 0 assignees View on GitHub

Nobody has claimed this yet.

Issue: Bug
Dominant language
Java
Stars
26.8k
Forks
7.7k
PR merge metrics
PR metrics pending

Description

Bug Report Checklist
  • Have you provided a full/minimal spec to reproduce the issue? yes
  • Have you validated the input using an OpenAPI validator (example)?
  • Have you tested with the latest master to confirm the issue still exists? yes
  • Have you searched for related issues/PRs?
  • What's the actual output vs expected output?
  • [Optional] Sponsorship to speed up the bug fix or feature request (example)
Description

Model List getting creating with a new instance of an ArrayList and not null from 7.5.0 version

openapi-generator version

latest

OpenAPI declaration file content or url
Generation Details
Steps to reproduce
Related issues/PRs
Suggest a fix

Contributor guide

Open the contributing guide

First steps

  1. Read the whole issue, then the project's contributing guide.
  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.

Research direction

The issue does not name a source file, test, OpenAPI declaration, or generation command. Start by obtaining the missing reproduction details and compare generated Java model output before and after version 7.5.0. Done means reproducing the ArrayList-versus-null behavior and confirming the expected generated output.

Written by the indexing model from the issue text.

Assessment

Tech stack
java
Domain
api, tooling
Issue type
Bug
Difficulty
4/5
Estimated time
3-5 days
Activity status
Stale
Clarity
Needs clarification
Newbie friendliness
25/100

Get new issues in your inbox

A short digest of beginner-friendly GitHub issues.