Issues

• [BUG] ExampleGenerator returns the string "{}" (or null) for type: object schemas without properties

  OpenAPITools/openapi-generator#25237 · Filter by author knusth opened on Oct 12, 2026

• [BUG] ExampleGenerator.generateFromResponseSchema treats the keys of an inline object example (java.util.Map) as media types

  OpenAPITools/openapi-generator#25236 · Filter by author knusth opened on Oct 12, 2026

• [BUG] ExampleGenerator: generated array examples ignore minItems

  OpenAPITools/openapi-generator#25235 · Filter by author knusth opened on Oct 12, 2026

• [BUG] ExampleGenerator: generated numeric examples violate maximum (negative, without minimum) and ignore exclusiveMinimum/exclusiveMaximum

  OpenAPITools/openapi-generator#25234 · Filter by author knusth opened on Oct 12, 2026

• [BUG] OpenApiEvaluator reports "default value not in enum" for numerically equal values with different scale (e.g. 1.5 and 1.50)

  Issue: Bug
  OpenAPITools/openapi-generator#25233 · Filter by author gabrielpires01 opened on Oct 12, 2026

• [BUG] OpenApiEvaluator emits "Unused model" warnings even when recommendations are disabled

  Issue: Bug
  OpenAPITools/openapi-generator#25232 · Filter by author gabrielpires01 opened on Oct 12, 2026

• [BUG] Description HTML2 generator: needs helpers.js

  Issue: Bug
  OpenAPITools/openapi-generator#25228 · Filter by author ascotto-rm opened on Oct 12, 2026

• [BUG][Java][Spring] 7.26.0 regression: oneOf interface getter for the discriminator is typed with the name of a primitive-alias schema that has no model ("cannot find symbol")

  OpenAPITools/openapi-generator#25226 · Filter by author cmuchinsky opened on Oct 12, 2026

• [BUG][csharp] Map responses emit {packageName}.Model.Dictionary instead of System.Collections.Generic.Dictionary

  OpenAPITools/openapi-generator#25224 · Filter by author kborys-onerail opened on Oct 12, 2026

• [BUG][KOTLIN] multiplatform/jvm-ktor: DELETE without requestBody sends "Content-Type: application/json" with an empty body

  Issue: Bug
  OpenAPITools/openapi-generator#25223 · Filter by author rlnt opened on Oct 12, 2026

• [BUG][csharp][restsharp] throwOnAnyError: oneOf/anyOf deserialization failure on 2xx escapes as InvalidDataException instead of ApiException

  Issue: Bug
  OpenAPITools/openapi-generator#25218 · Filter by author mszopa-foss opened on Oct 12, 2026

• [REQ] enhance useBeanValidation to generate @Valid for the returned objects too

  Enhancement: Feature
  OpenAPITools/openapi-generator#25214 · Filter by author LeosBitto opened on Oct 11, 2026

• [BUG][C#][generichost] Generic enum converter overrides schema-specific converters for arrays

  OpenAPITools/openapi-generator#25206 · Filter by author alexaka1 opened on Oct 9, 2026

• [BUG][swift6] Request builders crash the app (fatalError) on unsupported input and silently drop bodies that fail to encode

  OpenAPITools/openapi-generator#25183 · Filter by author spigo opened on Oct 8, 2026

• [BUG][CORE] 7.26.0: several inlineSchemaNameMappings onto one name generate numbered duplicates (Money, Money1)

  OpenAPITools/openapi-generator#25179 · Filter by author enfuce80 opened on Oct 8, 2026
  2

• [BUG][PYTHON] getPydanticType throws on OpenAPI 3.1 property with type "null" (7.26.0)

  OpenAPITools/openapi-generator#25176 · Filter by author dlynch90 opened on Oct 8, 2026
  1

• [BUG][typescript-fetch] Runtime fails isolatedDeclarations compilation

  OpenAPITools/openapi-generator#25172 · Filter by author budrobertson opened on Oct 7, 2026

• Spring generator uses one-based API page default as zero-based Pageable default

  OpenAPITools/openapi-generator#25160 · Filter by author Pattrigue opened on Oct 6, 2026
  2

• [BUG][csharp][generichost] Nested enum names collide in source-generated JSON contexts (SYSLIB1031)

  OpenAPITools/openapi-generator#25158 · Filter by author alexaka1 opened on Oct 6, 2026

• [BUG][csharp][generichost] anyOf with discriminator serializes to {}

  OpenAPITools/openapi-generator#25154 · Filter by author alexaka1 opened on Oct 6, 2026

• [REQ][Java] Remove unused imports from generated Java code

  OpenAPITools/openapi-generator#25145 · Filter by author ondrej-simon opened on Oct 6, 2026
  3

• [BUG][JAVA][Spring] Generated annotations contain attributes with default values (required = true, description = "")

  OpenAPITools/openapi-generator#25136 · Filter by author ondrej-simon opened on Oct 6, 2026

• [BUG][JAVA][jersey2/jersey3] multipart/form-data: object parts sent as toString() text instead of JSON, and encoding.contentType ignored

  Issue: Bug
  OpenAPITools/openapi-generator#25119 · Filter by author MatteoMolinari93 opened on Oct 5, 2026

• [Bug][Java/Spring] Container-level @Valid on Optional/JsonNullable-wrapped model properties triggers HV000271 (follow-up to #24176)

  OpenAPITools/openapi-generator#25097 · Filter by author jorgerod opened on Oct 2, 2026

• [REQ] Feature Request Description

  Enhancement: Feature
  OpenAPITools/openapi-generator#25094 · Filter by author alockmizan opened on Oct 2, 2026