build(deps): migrate test WireMock to Jetty 12

[jbeckwith-oai]

Summary

• migrate the test-only mock server from wiremock-jre8 2.35.2 / Jetty 9.4 to wiremock-jetty12 3.13.2
• align Jetty core and EE10 modules on 12.0.33, addressing Dependabot alerts #67 and #32
• scope the Java 17 requirement to resolvable test classpaths; published SDK variants remain Java 8
• run the normal test suites on the secure published Jackson 2.18.9 release while retaining a separate Jackson 2.14 compatibility pass for core and model behavior
• update the Handlebars response-templating compatibility test for WireMock 3's built-in transformer

Why

WireMock 2 pins the end-of-life Jetty 9.4 line. There is no patched Jetty 9.4 release for the request-smuggling advisory, so clearing the remaining Jetty alerts requires moving the test server to WireMock's Jetty 12 integration. WireMock 3 also requires Java 17 and newer Jackson APIs, which previously conflicted with the repository's Java 8 publication target and Jackson 2.14 compatibility runtime.

Impact

This changes test and build configuration only. It does not change published dependencies or public APIs, and the produced SDK JARs still use Java 8 bytecode.

Validation

• ./scripts/lint
• ./scripts/build --no-daemon --console plain
• ./scripts/test --no-daemon --console plain with the real local OpenAPI mock server
• forced no-cache :openai-java-client-okhttp:test
• WireMock-specific tests plus the complete testJacksonCompatibility pass
• dependency insight confirms Jetty 12.0.33 across core, EE10, HTTP/2, and servlet modules
• dependency insight confirms normal tests use Jackson 2.18.9 and compatibility tests use Jackson 2.14.0
• verified the core JAR remains Java 8 bytecode (major version 52)

[openai-sdks]

OkTest Summary

✅ 237/237 SDK tests passed in 14.426s for Java SDK PR #798.

Test results — 42 files

Test	Result	Time
tests/chat-completions-complex-body.test.ts	✅ Passed	141ms
tests/chat-completions-create.test.ts	✅ Passed	436ms
tests/chat-completions-stream.test.ts	✅ Passed	266ms
tests/files-content-binary.test.ts	✅ Passed	209ms
tests/files-create-multipart.test.ts	✅ Passed	300ms
tests/files-list-pagination.test.ts	✅ Passed	218ms
tests/initialize-config.test.ts	✅ Passed	125ms
tests/instance-isolation.test.ts	✅ Passed	104ms
tests/models-list.test.ts	✅ Passed	242ms
tests/responses-background-lifecycle.test.ts	✅ Passed	252ms
tests/responses-body-method-errors.test.ts	✅ Passed	479ms
tests/responses-cancel-timeout.test.ts	✅ Passed	229ms
tests/responses-cancel.test.ts	✅ Passed	288ms
tests/responses-compact-retries.test.ts	✅ Passed	212ms
tests/responses-compact.test.ts	✅ Passed	242ms
tests/responses-create-advanced-stream.test.ts	✅ Passed	402ms
tests/responses-create-advanced.test.ts	✅ Passed	1.049s
tests/responses-create-disconnect.test.ts	✅ Passed	1.065s
tests/responses-create-errors.test.ts	✅ Passed	334ms
tests/responses-create-malformed-api-responses.test.ts	✅ Passed	393ms
tests/responses-create-retries.test.ts	✅ Passed	225ms
tests/responses-create-stream-failures.test.ts	✅ Passed	138ms
tests/responses-create-stream-timeout.test.ts	✅ Passed	209ms
tests/responses-create-stream-wire.test.ts	✅ Passed	5.553s
tests/responses-create-stream.test.ts	✅ Passed	369ms
tests/responses-create-terminal-states.test.ts	✅ Passed	281ms
tests/responses-create-timeout.test.ts	✅ Passed	278ms
tests/responses-create.test.ts	✅ Passed	491ms
tests/responses-delete.test.ts	✅ Passed	222ms
tests/responses-input-items-errors.test.ts	✅ Passed	309ms
tests/responses-input-items-list.test.ts	✅ Passed	253ms
tests/responses-input-items-options.test.ts	✅ Passed	162ms
tests/responses-input-tokens-count-timeout.test.ts	✅ Passed	208ms
tests/responses-input-tokens-count.test.ts	✅ Passed	263ms
tests/responses-malformed-inputs.test.ts	✅ Passed	4.647s
tests/responses-not-found-errors.test.ts	✅ Passed	326ms
tests/responses-parse.test.ts	✅ Passed	403ms
tests/responses-retrieve-retries.test.ts	✅ Passed	244ms
tests/responses-retrieve.test.ts	✅ Passed	236ms
tests/responses-stored-method-errors.test.ts	✅ Passed	980ms
tests/retry-behavior.test.ts	✅ Passed	3.394s
tests/sdk-error-shape.test.ts	✅ Passed	413ms

View OkTest run #29611284647

_{SDK merge (d7ed3eb419ec) · head (670dadfa3b4b) · base (c3be8f9d60b2) · OkTest (fd7a761c81c1)}

[HAYDEN-OAI]

looks good, thanks for keeping the wiremock upgrade test-only and the java 8 publication target intact.