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Title: Fix GraphqlDecoder Optional record fields and non-nullable list nulls by velo · Pull Request #3272 · OpenFeign/feign · GitHub

Open Graph Title: Fix GraphqlDecoder Optional record fields and non-nullable list nulls by velo · Pull Request #3272 · OpenFeign/feign

X Title: Fix GraphqlDecoder Optional record fields and non-nullable list nulls by velo · Pull Request #3272 · OpenFeign/feign

Description: Summary Optional record fields: GraphqlDecoder now properly returns Optional.empty() instead of null for Optional-typed record fields. The decoder manually constructs records with Optional fields to avoid Jackson's convertValue limitation, recursively handling N-level deep nested records. Non-nullable list return types: Collection/array return types never return null — the decoder returns empty collections for null body, null operation data, and any other null-producing code path. Test plan Added test: decodesRecordWithOptionalFieldPresent Added test: decodesRecordWithOptionalFieldNull — verifies Optional.empty() not null Added test: decodesRecordWithOptionalFieldMissing — verifies Optional.empty() not null Added test: decodesNestedRecordWithOptionalFields — 2-level deep Added test: decodesDeeplyNestedRecordWithOptionalFields — 3-level deep Added test: returnsEmptyListForNullBody Added test: returnsEmptyListForNullOperationDataWithListType All 45 graphql module tests pass 🤖 Generated with Claude Code

Open Graph Description: Summary Optional record fields: GraphqlDecoder now properly returns Optional.empty() instead of null for Optional-typed record fields. The decoder manually constructs records with Optional fields ...

X Description: Summary Optional record fields: GraphqlDecoder now properly returns Optional.empty() instead of null for Optional-typed record fields. The decoder manually constructs records with Optional fields ...

Opengraph URL: https://github.com/OpenFeign/feign/pull/3272

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og:image:altSummary Optional record fields: GraphqlDecoder now properly returns Optional.empty() instead of null for Optional-typed record fields. The decoder manually constructs records with Optional fields ...
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e522bfb Fix GraphqlDecoder: Optional record fields return empty instead of nu… velo Mar 17, 2026 https://github.com/OpenFeign/feign/pull/3272/commits/e522bfb9cd5c4091ad7c4201ac58736ef2b55dad
2f71fe6 Merge branch 'master' into fix/graphql-decoder-optional-and-list-nulls velo Mar 17, 2026 https://github.com/OpenFeign/feign/pull/3272/commits/2f71fe6bfa42c06633613b5100f3547e25e7d0bd
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