[BUG][Java][Spring][SpringBoot] optional array with 'minItems' set generates to uninitialized list

[kingofdisasterr]

fixes #22784

@cachescrubber @welshm @MelleD @atextor @manedev79 @javisst @borsch @banlevente @Zomzog @martin-mfg

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Summary by cubic

Fixes #22784 by generating optional arrays with minItems > 0 in Java/Spring as nullable (default null) instead of initialized empty lists. This avoids invalid defaults and aligns with validation rules.

• Bug Fixes
  • Updated AbstractJavaCodegen.toDefaultValue to return null for optional arrays with minItems > 0.
  • Added test to ensure FooBarRequestDto.barList is nullable and not initialized.
  • Included OpenAPI sample (issue_22784.yaml) covering this scenario.

^{Written for commit 93dece7. Summary will update on new commits.}

[cubic-dev-ai]

No issues found across 3 files

[wing328]

Thanks for the PR but your commit (as shown in the Commits tab) is not linked to your Github account, which means this PR won't count as your contribution in https://github.com/OpenAPITools/openapi-generator/graphs/contributors.

Let me know if you need help fixing it.

Ref: https://github.com/OpenAPITools/openapi-generator/wiki/FAQ#how-can-i-update-commits-that-are-not-linked-to-my-github-account

[cubic-dev-ai]

2 issues found across 4 files (changes from recent commits).

Prompt for AI agents (all issues)

Check if these issues are valid — if so, understand the root cause of each and fix them.


<file name="samples/server/petstore/python-fastapi/Dockerfile">

<violation number="1">
P2: Dockerfile now uses Python 3.7 (EOL, no security updates) for all stages; this introduces a security/maintainability risk for generated sample containers.</violation>
</file>

<file name="docs/generators/python-fastapi.md">

<violation number="1">
P2: Documentation now lists Python 3.7 for python-fastapi, but the generator metadata still reports 3.10, so the docs are inconsistent with the actual supported version.</violation>
</file>

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