feat: add Java/Spring Boot and AI agent docs (first Java content)#193
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rkp4u wants to merge 1 commit intoandrewyng:mainfrom
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feat: add Java/Spring Boot and AI agent docs (first Java content)#193rkp4u wants to merge 1 commit intoandrewyng:mainfrom
rkp4u wants to merge 1 commit intoandrewyng:mainfrom
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… context-hub Add 8 curated documentation entries for the Java ecosystem, filling a major gap in context-hub's coverage (previously zero Java content). Spring Boot ecosystem (6 entries): - spring-boot/package: Core setup, DI, profiles, configuration properties - spring-boot/rest-api: Controllers, validation, ProblemDetail, OpenAPI - spring-security/package: SecurityFilterChain, JWT, OAuth2, CORS (6.x) - spring-data/jpa: Repositories, queries, pagination, N+1 solutions - hibernate/package: Entity mapping, fetch strategies, Hibernate 5→6 migration - junit/testing: JUnit 5, Mockito, MockMvc, test slicing, Testcontainers AI agent tooling (2 entries): - langchain4j/package: ChatModel, AI Services, tools, RAG, Spring Boot starter - langgraph4j/package: StateGraph, agent patterns, checkpointing, Spring Boot integration All docs focus on preventing common AI agent hallucinations by clearly marking deprecated/removed APIs (WebSecurityConfigurerAdapter, javax.persistence, ChatLanguageModel→ChatModel, @MockBean→@MockitoBean, springfox, etc.). Validated with: chub build content/ --validate-only (1561 docs, 0 errors) Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
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Summary
Adds 8 curated documentation entries for the Java ecosystem — the first Java content in context-hub. This fills a major gap: the registry previously had zero Java coverage despite Java being one of the most widely used enterprise languages.
Spring Boot Ecosystem (6 entries)
spring-boot/package— Core setup, dependency injection, profiles,@ConfigurationProperties, actuatorspring-boot/rest-api— Controllers, bean validation,ProblemDetail(RFC 7807), exception handling, springdoc-openapispring-security/package—SecurityFilterChain(6.x), JWT auth, OAuth2 Resource Server, CORS, method securityspring-data/jpa— Repository patterns, query methods, pagination, N+1 solutions,@Transactional, auditing, specificationshibernate/package— Entity mapping, fetch strategies, second-level cache, Hibernate 5→6 migration guidejunit/testing— JUnit 5, Mockito,@MockitoBean(Boot 3.4+), MockMvc, test slicing,@ServiceConnectionwith TestcontainersAI Agent Tooling for Java (2 entries)
langchain4j/package—ChatModel, AI Services, tool use (@Tool/@P), RAG, structured output, Spring Boot auto-configlanggraph4j/package—StateGraphAPI, channels, agent patterns (ReAct, Supervisor, Plan-and-Execute, Swarm), Spring Boot integrationWhy This Matters for AI Agents
Every doc emphasizes what agents get wrong — clearly marking deprecated/removed APIs with "CRITICAL: Do NOT use" sections:
WebSecurityConfigurerAdapter→SecurityFilterChain(removed in Security 6)javax.persistence.*→jakarta.persistence.*(Hibernate 6 / Jakarta EE)antMatchers()→requestMatchers()(removed in Security 6)@MockBean→@MockitoBean(deprecated in Boot 3.4)springfox→springdoc-openapi(springfox is abandoned)ChatLanguageModel→ChatModel,.generate()→.chat()(LangChain4j 1.0 GA renames)Validation
chub build content/ --validate-only→ 1561 docs, 7 skills, 0 errorsTest plan
chub build content/ --validate-onlypasses🤖 Generated with Claude Code