chore(api): document fine-tuning and model errors

[markstuart-oai]

Summary

Clarifies fine-tuning and model error responses while retaining existing Java behavior.

Changes

• Describe applicable validation, lookup, permission and rate-limit errors.
• Preserve existing method signatures, exception types and runtime behavior.

[github-actions]

Castiron custom code

✅ No new custom-code files detected.

92 mixed files remain; 0 existing customizations changed.

Compared 6b226243eac2 → 0f12b904565a. Generated baselines verified.

92 existing customizations unchanged

• openai-java-core/src/main/kotlin/com/openai/models/audio/AudioResponseFormat.kt
• openai-java-core/src/main/kotlin/com/openai/models/audio/transcriptions/TranscriptionCreateParams.kt
• openai-java-core/src/main/kotlin/com/openai/models/beta/agents/vaults/credentials/CredentialAuth.kt
• openai-java-core/src/main/kotlin/com/openai/models/beta/agents/vaults/credentials/CredentialAuthCreateParam.kt
• openai-java-core/src/main/kotlin/com/openai/models/beta/agents/vaults/credentials/CredentialAuthRotateParam.kt
• openai-java-core/src/main/kotlin/com/openai/models/beta/responses/BetaResponseStreamEvent.kt
• openai-java-core/src/main/kotlin/com/openai/models/beta/responses/BetaResponsesServerEvent.kt
• openai-java-core/src/main/kotlin/com/openai/models/chat/completions/ChatCompletionCreateParams.kt
• openai-java-core/src/main/kotlin/com/openai/models/chat/completions/ChatCompletionMessageFunctionToolCall.kt
• openai-java-core/src/main/kotlin/com/openai/models/chat/completions/ChatCompletionToolMessageParam.kt
• openai-java-core/src/main/kotlin/com/openai/models/embeddings/Embedding.kt
• openai-java-core/src/main/kotlin/com/openai/models/embeddings/EmbeddingCreateParams.kt
• openai-java-core/src/main/kotlin/com/openai/models/responses/ResponseCreateParams.kt
• openai-java-core/src/main/kotlin/com/openai/models/responses/ResponseFunctionToolCall.kt
• openai-java-core/src/main/kotlin/com/openai/models/responses/ResponseFunctionWebSearch.kt
• openai-java-core/src/main/kotlin/com/openai/models/responses/ResponseInputItem.kt
• openai-java-core/src/main/kotlin/com/openai/models/responses/ResponseStreamEvent.kt
• openai-java-core/src/main/kotlin/com/openai/models/responses/ResponseTextConfig.kt
• openai-java-core/src/main/kotlin/com/openai/models/responses/ResponsesServerEvent.kt
• openai-java-core/src/main/kotlin/com/openai/models/videos/Video.kt
• openai-java-core/src/main/kotlin/com/openai/models/webhooks/UnwrapWebhookEvent.kt
• openai-java-core/src/main/kotlin/com/openai/models/webhooks/WebhookEndpointWithSecret.kt
• openai-java-core/src/main/kotlin/com/openai/services/async/BetaServiceAsync.kt
• openai-java-core/src/main/kotlin/com/openai/services/async/BetaServiceAsyncImpl.kt
• openai-java-core/src/main/kotlin/com/openai/services/async/ImageServiceAsyncImpl.kt
• openai-java-core/src/main/kotlin/com/openai/services/async/ResponseServiceAsync.kt
• openai-java-core/src/main/kotlin/com/openai/services/async/ResponseServiceAsyncImpl.kt
• openai-java-core/src/main/kotlin/com/openai/services/async/SkillServiceAsyncImpl.kt
• openai-java-core/src/main/kotlin/com/openai/services/async/VideoServiceAsyncImpl.kt
• openai-java-core/src/main/kotlin/com/openai/services/async/WebhookServiceAsync.kt
• openai-java-core/src/main/kotlin/com/openai/services/async/WebhookServiceAsyncImpl.kt
• openai-java-core/src/main/kotlin/com/openai/services/async/audio/TranscriptionServiceAsync.kt
• openai-java-core/src/main/kotlin/com/openai/services/async/audio/TranscriptionServiceAsyncImpl.kt
• openai-java-core/src/main/kotlin/com/openai/services/async/audio/TranslationServiceAsyncImpl.kt
• openai-java-core/src/main/kotlin/com/openai/services/async/beta/agents/SessionServiceAsync.kt
• openai-java-core/src/main/kotlin/com/openai/services/async/beta/agents/SessionServiceAsyncImpl.kt
• openai-java-core/src/main/kotlin/com/openai/services/async/chat/ChatCompletionServiceAsync.kt
• openai-java-core/src/main/kotlin/com/openai/services/async/finetuning/checkpoints/PermissionServiceAsyncImpl.kt
• openai-java-core/src/main/kotlin/com/openai/services/async/skills/VersionServiceAsyncImpl.kt
• openai-java-core/src/main/kotlin/com/openai/services/blocking/BetaService.kt

52 more in the full report.

A changed generated baseline means this report cannot reliably identify which handwritten lines changed.

Inspect the custom-code diff

Download the exact patch produced by this run (requires repository access):

gh run download 36183596342 --repo openai/openai-java \
  --name castiron-custom-code-36183596342-1 --dir /tmp/castiron-custom-code-36183596342-1
git apply --stat /tmp/castiron-custom-code-36183596342-1/custom-code.patch
cat /tmp/castiron-custom-code-36183596342-1/custom-code.patch

Or reproduce it from an SDK checkout containing the vendored reporter:

git fetch --no-tags origin 6b226243eac24cd295dd26fcc18cf45f19358b54 0f12b904565af350457b4e7ebe97e807e753ec12
python3 scripts/castiron/custom_code_report.py report \
  --base 6b226243eac24cd295dd26fcc18cf45f19358b54 \
  --head 0f12b904565af350457b4e7ebe97e807e753ec12 --fetch --require-head-hash --public \
  --out /tmp/castiron-custom-code-0f12b904565a
cat /tmp/castiron-custom-code-0f12b904565a/custom-code.patch

This is the current full custom patch for mixed files, not an attribution of only the handwritten lines changed by this PR.

Full report and patch

[openai-sdks]

OkTest Summary

✅ 236/236 SDK tests passed in 15.748s for Java SDK PR #1087.

Test results — 42 files

Test	Result	Time
tests/chat-completions-complex-body.test.ts	✅ Passed	172ms
tests/chat-completions-create.test.ts	✅ Passed	525ms
tests/chat-completions-stream.test.ts	✅ Passed	333ms
tests/files-content-binary.test.ts	✅ Passed	271ms
tests/files-create-multipart.test.ts	✅ Passed	279ms
tests/files-list-pagination.test.ts	✅ Passed	267ms
tests/initialize-config.test.ts	✅ Passed	214ms
tests/instance-isolation.test.ts	✅ Passed	190ms
tests/models-list.test.ts	✅ Passed	212ms
tests/responses-background-lifecycle.test.ts	✅ Passed	212ms
tests/responses-body-method-errors.test.ts	✅ Passed	503ms
tests/responses-cancel-timeout.test.ts	✅ Passed	220ms
tests/responses-cancel.test.ts	✅ Passed	250ms
tests/responses-compact-retries.test.ts	✅ Passed	270ms
tests/responses-compact.test.ts	✅ Passed	213ms
tests/responses-create-advanced-stream.test.ts	✅ Passed	432ms
tests/responses-create-advanced.test.ts	✅ Passed	1.293s
tests/responses-create-disconnect.test.ts	✅ Passed	971ms
tests/responses-create-errors.test.ts	✅ Passed	323ms
tests/responses-create-malformed-api-responses.test.ts	✅ Passed	165ms
tests/responses-create-retries.test.ts	✅ Passed	232ms
tests/responses-create-stream-failures.test.ts	✅ Passed	165ms
tests/responses-create-stream-timeout.test.ts	✅ Passed	255ms
tests/responses-create-stream-wire.test.ts	✅ Passed	6.103s
tests/responses-create-stream.test.ts	✅ Passed	518ms
tests/responses-create-terminal-states.test.ts	✅ Passed	344ms
tests/responses-create-timeout.test.ts	✅ Passed	208ms
tests/responses-create.test.ts	✅ Passed	1.198s
tests/responses-delete.test.ts	✅ Passed	242ms
tests/responses-input-items-errors.test.ts	✅ Passed	252ms
tests/responses-input-items-list.test.ts	✅ Passed	257ms
tests/responses-input-items-options.test.ts	✅ Passed	167ms
tests/responses-input-tokens-count-timeout.test.ts	✅ Passed	232ms
tests/responses-input-tokens-count.test.ts	✅ Passed	295ms
tests/responses-malformed-inputs.test.ts	✅ Passed	5.304s
tests/responses-not-found-errors.test.ts	✅ Passed	384ms
tests/responses-parse.test.ts	✅ Passed	648ms
tests/responses-retrieve-retries.test.ts	✅ Passed	283ms
tests/responses-retrieve.test.ts	✅ Passed	196ms
tests/responses-stored-method-errors.test.ts	✅ Passed	1.161s
tests/retry-behavior.test.ts	✅ Passed	3.426s
tests/sdk-error-shape.test.ts	✅ Passed	411ms

View OkTest run #36183563557

_{SDK merge (456d4290681c) · head (0f12b904565a) · base (6b226243eac2) · OkTest (f9111d4e2fcd)}

[markstuart-oai]

Thanks @dpiet-oai for reviewing. The final candidate keeps existing Java APIs, exception types and runtime behavior unchanged; the API/Jackson compatibility checks and all 236 downstream cases pass.