fix: resolve PrimitiveType casting for OpenAPI 3.1 schemas (#4963)

[K5qu4r3d]

Pull Request

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Description

This PR fixes an issue where PrimitiveType OpenAPI 3.1 schemas used in @ApiResponse content schema implementations are incorrectly cast to type "string" instead of properly-defined types.

Problem

For each enum in PrimitiveType, their createProperty31() method sets the value for only field type and not types.

Solution

Updated createProperty31() to set a value for field types. A new test class APIResponsesResourceTest verifies that the resulting schema's type and types field values match for each class defined in @Schema(implementation = ...).

Relevant issue

Fixes: #4963

Type of Change

• [x] 🐛 Bug fix
• [ ] ✨ New feature
• [ ] ♻️ Refactor (non-breaking change)
• [x] 🧪 Tests
• [ ] 📝 Documentation
• [ ] 🧹 Chore (build or tooling)

Checklist

• [x] I have added/updated tests as needed
• [ ] I have added/updated documentation where applicable
• [x] The PR title is descriptive
• [x] The code builds and passes tests locally
• [x] I have linked related issues (if any)

Screenshots / Additional Context

• Added files:

  • modules/swagger-jaxrs2/src/test/java/io/swagger/v3/jaxrs2/resources/APIResponsesResource.java
  • modules/swagger-jaxrs2/src/test/java/io/swagger/v3/jaxrs2/APIResponsesResourceTest.java

• Affected files:

  • modules/swagger-core/src/main/java/io/swagger/v3/core/util/AnnotationsUtils.java
  • modules/swagger-core/src/main/java/io/swagger/v3/core/util/PrimitiveType.java
  • modules/swagger-java17-support/src/test/java/io/swagger/v3/java17/resolving/v31/ModelResolverOAS31Test.java
  • modules/swagger-core/src/test/java/io/swagger/v3/core/resolving/Ticket2992Test.java

[ewaostrowska]

There are still some failing tests in APIResponsesResourceTest.java. Please adjust tests :)