Java/Spring 기반 백엔드 엔지니어입니다. 매일 학습하고 기록하며, 동작 원리를 밑바닥부터 이해하는 것을 좋아합니다.
- 📝 매일 TIL 작성 — Java/Spring/CS 심화 학습 노트
🔀 34 PRs merged · 13 projects
openapi-generator #24218 fix(kotlin-server): use valid Kotlin String conversions…
openapi-generator #24062 [Go] Honor generateUnmarshalJSON=false for oneOf models
openapi-generator #24047 [kotlin] Add @get:JsonValue to nested Jackson enums (#2…
openapi-generator #23982 [typescript-fetch] Fix TS2590 in instanceOf guards for …
openapi-generator #24127 [Java] Skip wildcard media types when selecting request…
openapi-generator #23971 [Java] Render object default for composed ($ref + defau…
openapi-generator #24072 [python] Run regex pattern validators in mode="before" …
openapi-generator #24081 [core] Restore sibling example for allOf with a single …
openapi-generator #24076 [core] Fix UnsupportedOperationException for oneOf memb…
openapi-generator #24017 [Java][vertx] Apply Vert.x pool defaults in buildWebCli…
openapi-generator #23872 [Java][restclient] Build XmlMapper via builder when use…
jackson-dataformats-text #697 Fix #696: write non-finite TOML floats as nan/inf/-inf
spring #1258 fix: exclude annotation types from mapper candidate com…
jackson-core #1624 Fix #1622: size base64 encoding buffer from binary leng…
jackson-core #1613 Add JsonReadFeature.ALLOW_HEXADECIMAL_NUMBERS for JSON5…
jackson-core #1614 Preserve explicit "+" sign across buffer boundaries for…
spring-boot #50734 High number of connections due to Mongo health indicator
jackson-databind #6047 Fix #6043: honor FAIL_ON_UNKNOWN_PROPERTIES for creator…
feign #3415 Return response body in FeignException from errorReadin…
feign #3382 Preserve delegate content type for multipart parameters
feign #3422 Make Expressions max length configurable (fixes #2916)
feign #3419 Honor jdk.httpclient.allowRestrictedHeaders in Http2Cli…
feign #3406 Fix feign-core test compilation broken by removed Reque…
feign #3394 Avoid ClassLoader leak from static default async execut…
feign #3407 Open observation scope and stop on non-FeignException e…
feign #3371 Forward dismiss404 from CoroutineFeign builder to Async…
feign #3370 Document metrics published by the micrometer module
resilience4j #2478 Preserve durationSupplierType when copying HedgeConfig …
spring-cloud-openfeign #1384 Fix concurrent initialization race in FeignHttpMessageC…
spring-cloud-openfeign #1378 Fix unconditional overwrite of resolved fallbackFactory…
querydsl #1791 Render object arrays as Kotlin Array in querydsl-kot…
mapstruct #4061 #4060 Report compilation error for SET_TO_DEFAULT witho…
jreleaser #2130 fix(deploy): clarify Maven Central polling log wording
spring-batch #5400 Propagate step context to worker threads in ChunkTaskEx…
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Why Driven Backend — velog
- 2026-07-11 — remove 다음에 persist 했는데 INSERT가 먼저 나갔다 — Hibernate flush가 호출 순서를 버리는 이유
- 2026-07-10 — PostgreSQL은 UPDATE마다 인덱스를 새로 쓸까 — HOT이 인덱스 write를 없애는 법
- 2026-07-09 — 같은 이미지로 컨테이너를 수십 개 띄워도 디스크가 안 터지는 이유 — overlay2와 copy_up
- 2026-07-08 — 블로킹 호출은 왜 가상 스레드의 캐리어를 놓아주는가 — 마운트·언마운트와 pinning
- 2026-07-07 — 노드를 하나 늘렸을 뿐인데 캐시가 거의 다 miss나는 이유 — 일관된 해싱과 가상 노드