I'm Junior backend engineer and open source contributor(my hobby) on JUnit5, spring-boot, naver/fixture-monkey, and more. Enjoy collaborating on projects, sharing knowledge, and continuously learning new technologies to improve my skills.

Recently, I’ve been particularly interested in Test code.
Test code is not only for validation! it also helps other developers understand how to use my code and serves as a guide for efficient refactoring, making it crucial for maintaining high-quality software.

• JUnit5
  • Introduce feature flag for auto-closing AutoCloseable in Jupiter's ExtensionContext.Store #4452
  • Provide mechanism for managing resources across engines and executions #4281
  • Implement Parallel Method Execution in JUnit-Vintage engine #4242
  • Document that AnnotationSupport.isAnnotated() does not find repeatable annotations #4243
  • Support parallelization in Junit-Vintage-engine #4135
  • Implement include and exclude filtering when calling registerAutoDetectedExtensions #4120
  • Add include matching on ClassNamePatternFilterUtils #4115
• spring-boot
  • Add Fail fast mechanism when both management base path and endpoint mapping are set to / #45251
  • Ensure DefaultErrorAttributes adds JSON serialization safe errors #43330
• naver/fixture-monkey
  • Implement Random Selection of Register Operations When Not Using selectName #1108
  • Implement a Matcher interface to manage ArbitraryBuilders with a single variable #1062
  • Add register and select ArbitraryBuilder by name #1036
• apache-seata
  • Use shared EventLoop for TM and RM clients to reduce thread overhead and improve performance #7179
  • Implement scheduled handling for end status transaction #7133
  • treating a unique index conflict during rollback as a dirty write #7135
• apache-baremaps
  • Displaying boundaries and borders #948
  • Displaying building numbers #945
• LG/fosslight
  • Refactor existing tox test to pytest #225
  • Change SCANOSS Invocation Method from Command Line to Library Function #178
  • Add simple_mode parameter to CoverItem constructor #108

• JUnit5에 병렬화를 도입한 이야기 - 클래스 단위
• 다양한 시각에서 바라본 Redis - 비교
• 다양한 시각에서 바라본 Redis - 특징
• 다양한 시각에서 바라본 PK 생성 전략

• Open Source Contribution
• Development Discussions
• Watching Soccer

• dev.yongjunh@gmail.com
  • I enjoy having conversations. Feel free to reach out if you're interested! 😊
• Let's have a virtual coffee ☕
• Resume-KO / Resume-EN
• Tech blog
• Linked.in