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@kingofdisasterr kingofdisasterr commented Jan 28, 2026

fixes #22784

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Summary by cubic

Generate optional arrays with minItems > 0 as null in Java models instead of defaulting to empty lists. This prevents empty arrays that violate minItems and aligns the Java/Spring codegen with the OpenAPI spec. Fixes #22784.

  • Bug Fixes
    • Optional array properties with minItems > 0 now generate as uninitialized (@nullable List) rather than new ArrayList<>().
    • Added OpenAPI 3.1 sample and SpringCodegen test to verify the behavior.
    • Updated petstore sample (AnyTypeTest) to remove default empty list initialization.

Written for commit 92c4bc0. Summary will update on new commits.

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@wing328 i had to open a new PR since i messed up with this one: #22794

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No issues found across 5 files

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No issues found across 5 files

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[BUG][Java][Spring][SpringBoot] optional array with 'minItems' set, fails validation

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